diff --git a/packages/core/assemblyManager/assembly.ts b/packages/core/assemblyManager/assembly.ts
index a54cf36b19..8fbff59a5b 100644
--- a/packages/core/assemblyManager/assembly.ts
+++ b/packages/core/assemblyManager/assembly.ts
@@ -60,10 +60,19 @@ async function loadRefNameMap(
   signal?: AbortSignal,
 ) {
   const { sessionId } = options
-  await when(() => !!(assembly.regions && assembly.refNameAliases), {
-    signal,
-    name: 'when assembly ready',
-  })
+
+  await when(
+    () =>
+      !!(
+        assembly.regions &&
+        assembly.refNameAliases &&
+        adapterConfig.sequenceAdapter
+      ),
+    {
+      signal,
+      name: 'when assembly ready',
+    },
+  )
 
   const refNames = (await assembly.rpcManager.call(
     sessionId || 'assemblyRpc',
@@ -82,10 +91,9 @@ async function loadRefNameMap(
   }
 
   const refNameMap = Object.fromEntries(
-    refNames.map(name => {
-      checkRefName(name)
-      return [assembly.getCanonicalRefName(name), name]
-    }),
+    refNames
+      .map(name => checkRefName(name))
+      .map(name => [assembly.getCanonicalRefName(name), name]),
   )
 
   // make the reversed map too
@@ -107,6 +115,7 @@ function checkRefName(refName: string) {
   if (!refNameRegex.test(refName)) {
     throw new Error(`Encountered invalid refName: "${refName}"`)
   }
+  return refName
 }
 
 type RefNameAliases = Record<string, string | undefined>
diff --git a/packages/core/pluggableElementTypes/models/baseTrackConfig.ts b/packages/core/pluggableElementTypes/models/baseTrackConfig.ts
index c2970394e5..1f95be439e 100644
--- a/packages/core/pluggableElementTypes/models/baseTrackConfig.ts
+++ b/packages/core/pluggableElementTypes/models/baseTrackConfig.ts
@@ -1,6 +1,14 @@
-import { types, Instance } from 'mobx-state-tree'
-import { ConfigurationSchema } from '../../configuration'
+import {
+  types,
+  Instance,
+  getSnapshot,
+  getRoot,
+  addDisposer,
+} from 'mobx-state-tree'
+import { ConfigurationSchema, readConfObject } from '../../configuration'
 import PluginManager from '../../PluginManager'
+import { AssemblyManager, notEmpty } from '../../util'
+import { autorun } from 'mobx'
 
 /**
  * #config BaseTrack
@@ -81,6 +89,14 @@ export function createBaseTrackConfig(pluginManager: PluginManager) {
         ),
       }),
 
+      /**
+       * #slot
+       */
+      sequenceAdapters: {
+        type: 'frozen',
+        defaultValue: {},
+      },
+
       /**
        * #slot
        */
@@ -180,20 +196,51 @@ export function createBaseTrackConfig(pluginManager: PluginManager) {
       explicitlyTyped: true,
       // eslint-disable-next-line @typescript-eslint/no-explicit-any
       actions: (self: any) => ({
-        addDisplayConf(conf: { type: string; displayId: string }) {
-          const { type } = conf
+        forceAddDisplay(c: { type: string; displayId: string }) {
+          self.displays.push(c)
+          return self.displays.at(-1)
+        },
+        addDisplayConf(c: { type: string; displayId: string }) {
+          const { type } = c
           if (!type) {
             throw new Error(`unknown display type ${type}`)
           }
-          const display = self.displays.find(
-            // eslint-disable-next-line @typescript-eslint/no-explicit-any
-            (d: any) => d?.displayId === conf.displayId,
+          return (
+            self.displays.find(
+              (d: { displayId: string }) => d?.displayId === c.displayId,
+            ) ?? self.forceAddDisplay(c)
+          )
+        },
+        setSequenceAdapters(a: Record<string, unknown>) {
+          self.sequenceAdapters = a
+        },
+        afterAttach() {
+          addDisposer(
+            self,
+            autorun(() => {
+              const { assemblyManager } = getRoot<{
+                assemblyManager: AssemblyManager
+              }>(self)
+              const assemblyNames = readConfObject(
+                self,
+                'assemblyNames',
+              ) as string[]
+              self.setSequenceAdapters(
+                assemblyNames
+                  .map(a => {
+                    const conf = assemblyManager.get(a)?.configuration
+                    return conf ? ([a, getSnapshot(conf)] as const) : undefined
+                  })
+                  .filter(notEmpty),
+              )
+              const c = assemblyManager.get(assemblyNames[0])?.configuration
+              if (c) {
+                self.adapter.setSequenceAdapter?.(
+                  readConfObject(c.sequence.adapter),
+                )
+              }
+            }),
           )
-          if (display) {
-            return display
-          }
-          const length = self.displays.push(conf)
-          return self.displays[length - 1]
         },
       }),
     },
diff --git a/packages/product-core/src/ui/AboutDialogContents.tsx b/packages/product-core/src/ui/AboutDialogContents.tsx
index 44434327c7..84324d2ce5 100644
--- a/packages/product-core/src/ui/AboutDialogContents.tsx
+++ b/packages/product-core/src/ui/AboutDialogContents.tsx
@@ -86,7 +86,13 @@ export default function AboutContents({
         ) : null}
         <Attributes
           attributes={confPostExt}
-          omit={['displays', 'baseUri', 'refNames', 'formatAbout']}
+          omit={[
+            'displays',
+            'baseUri',
+            'refNames',
+            'formatAbout',
+            'sequenceAdapters',
+          ]}
           hideUris={hideUris}
         />
       </BaseCard>
diff --git a/plugins/alignments/src/BamAdapter/configSchema.ts b/plugins/alignments/src/BamAdapter/configSchema.ts
index 376506f1f7..12ef650f42 100644
--- a/plugins/alignments/src/BamAdapter/configSchema.ts
+++ b/plugins/alignments/src/BamAdapter/configSchema.ts
@@ -5,61 +5,59 @@ import { types } from 'mobx-state-tree'
  * #config BamAdapter
  * used to configure BAM adapter
  */
-function x() {} // eslint-disable-line @typescript-eslint/no-unused-vars
-
-const configSchema = ConfigurationSchema(
-  'BamAdapter',
-  {
-    /**
-     * #slot
-     */
-    bamLocation: {
-      type: 'fileLocation',
-      defaultValue: { uri: '/path/to/my.bam', locationType: 'UriLocation' },
-    },
+export default function configSchemaF() {
+  return ConfigurationSchema(
+    'BamAdapter',
+    {
+      /**
+       * #slot
+       */
+      bamLocation: {
+        type: 'fileLocation',
+        defaultValue: { uri: '/path/to/my.bam', locationType: 'UriLocation' },
+      },
 
-    index: ConfigurationSchema('BamIndex', {
+      index: ConfigurationSchema('BamIndex', {
+        /**
+         * #slot index.indexType
+         */
+        indexType: {
+          model: types.enumeration('IndexType', ['BAI', 'CSI']),
+          type: 'stringEnum',
+          defaultValue: 'BAI',
+        },
+        /**
+         * #slot index.location
+         */
+        location: {
+          type: 'fileLocation',
+          defaultValue: {
+            uri: '/path/to/my.bam.bai',
+            locationType: 'UriLocation',
+          },
+        },
+      }),
       /**
-       * #slot index.indexType
+       * #slot
        */
-      indexType: {
-        model: types.enumeration('IndexType', ['BAI', 'CSI']),
-        type: 'stringEnum',
-        defaultValue: 'BAI',
+      fetchSizeLimit: {
+        type: 'number',
+        description:
+          'size to fetch in bytes over which to display a warning to the user that too much data will be fetched',
+        defaultValue: 5_000_000,
       },
       /**
-       * #slot index.location
+       * #slot
+       * generally refers to the reference genome assembly's sequence adapter
+       * currently needs to be manually added
        */
-      location: {
-        type: 'fileLocation',
-        defaultValue: {
-          uri: '/path/to/my.bam.bai',
-          locationType: 'UriLocation',
-        },
+      sequenceAdapter: {
+        type: 'frozen',
+        description:
+          'sequence data adapter, used to calculate SNPs when BAM reads lacking MD tags',
+        defaultValue: null,
       },
-    }),
-    /**
-     * #slot
-     */
-    fetchSizeLimit: {
-      type: 'number',
-      description:
-        'size to fetch in bytes over which to display a warning to the user that too much data will be fetched',
-      defaultValue: 5_000_000,
-    },
-    /**
-     * #slot
-     * generally refers to the reference genome assembly's sequence adapter
-     * currently needs to be manually added
-     */
-    sequenceAdapter: {
-      type: 'frozen',
-      description:
-        'sequence data adapter, used to calculate SNPs when BAM reads lacking MD tags',
-      defaultValue: null,
     },
-  },
-  { explicitlyTyped: true },
-)
-
-export default configSchema
+    { explicitlyTyped: true },
+  )
+}
diff --git a/plugins/alignments/src/BamAdapter/index.ts b/plugins/alignments/src/BamAdapter/index.ts
index c84f0325c6..878925fa54 100644
--- a/plugins/alignments/src/BamAdapter/index.ts
+++ b/plugins/alignments/src/BamAdapter/index.ts
@@ -1,13 +1,13 @@
 import PluginManager from '@jbrowse/core/PluginManager'
 import AdapterType from '@jbrowse/core/pluggableElementTypes/AdapterType'
-import configSchema from './configSchema'
+import configSchemaF from './configSchema'
 
 export default function BamAdapterF(pluginManager: PluginManager) {
   pluginManager.addAdapterType(() => {
     return new AdapterType({
       name: 'BamAdapter',
       displayName: 'BAM adapter',
-      configSchema,
+      configSchema: configSchemaF(),
       getAdapterClass: () => import('./BamAdapter').then(r => r.default),
     })
   })
diff --git a/plugins/alignments/src/CramAdapter/configSchema.ts b/plugins/alignments/src/CramAdapter/configSchema.ts
index b1fe36c2d4..4e754a42e1 100644
--- a/plugins/alignments/src/CramAdapter/configSchema.ts
+++ b/plugins/alignments/src/CramAdapter/configSchema.ts
@@ -6,52 +6,62 @@ import { ConfigurationSchema } from '@jbrowse/core/configuration'
  */
 function x() {} // eslint-disable-line @typescript-eslint/no-unused-vars
 
-const configSchema = ConfigurationSchema(
-  'CramAdapter',
-  {
-    /**
-     * #slot fetchSizeLimit
-     */
-    fetchSizeLimit: {
-      type: 'number',
-      description:
-        'size in bytes over which to display a warning to the user that too much data will be fetched',
-      defaultValue: 3_000_000,
-    },
+export default function configSchemaF() {
+  return ConfigurationSchema(
+    'CramAdapter',
+    {
+      /**
+       * #slot fetchSizeLimit
+       */
+      fetchSizeLimit: {
+        type: 'number',
+        description:
+          'size in bytes over which to display a warning to the user that too much data will be fetched',
+        defaultValue: 3_000_000,
+      },
 
-    /**
-     * #slot cramLocation
-     */
-    cramLocation: {
-      type: 'fileLocation',
-      defaultValue: {
-        uri: '/path/to/my.cram',
-        locationType: 'UriLocation',
+      /**
+       * #slot cramLocation
+       */
+      cramLocation: {
+        type: 'fileLocation',
+        defaultValue: {
+          uri: '/path/to/my.cram',
+          locationType: 'UriLocation',
+        },
       },
-    },
 
-    /**
-     * #slot craiLocation
-     */
-    craiLocation: {
-      type: 'fileLocation',
-      defaultValue: {
-        uri: '/path/to/my.cram.crai',
-        locationType: 'UriLocation',
+      /**
+       * #slot craiLocation
+       */
+      craiLocation: {
+        type: 'fileLocation',
+        defaultValue: {
+          uri: '/path/to/my.cram.crai',
+          locationType: 'UriLocation',
+        },
       },
-    },
 
-    /**
-     * #slot sequenceAdapter
-     * generally refers to the reference genome assembly's sequence adapter
-     * currently needs to be manually added
-     */
-    sequenceAdapter: {
-      type: 'frozen',
-      description: 'sequence data adapter',
-      defaultValue: null,
+      /**
+       * #slot sequenceAdapter
+       * generally refers to the reference genome assembly's sequence adapter
+       * this can be manually added via the baseTrackConfig autorun, or manually
+       * specified
+       */
+      sequenceAdapter: {
+        type: 'frozen',
+        description: 'sequence data adapter',
+        defaultValue: null,
+      },
+    },
+    {
+      explicitlyTyped: true,
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      actions: (self: any) => ({
+        setSequenceAdapter(s: Record<string, unknown>) {
+          self.sequenceAdapter = s
+        },
+      }),
     },
-  },
-  { explicitlyTyped: true },
-)
-export default configSchema
+  )
+}
diff --git a/plugins/alignments/src/CramAdapter/index.ts b/plugins/alignments/src/CramAdapter/index.ts
index 8155682c4f..14f7bb6ff3 100644
--- a/plugins/alignments/src/CramAdapter/index.ts
+++ b/plugins/alignments/src/CramAdapter/index.ts
@@ -2,14 +2,14 @@ import PluginManager from '@jbrowse/core/PluginManager'
 import AdapterType from '@jbrowse/core/pluggableElementTypes/AdapterType'
 
 // locals
-import configSchema from './configSchema'
+import configSchemaF from './configSchema'
 
 export default function CramAdapterF(pluginManager: PluginManager) {
   pluginManager.addAdapterType(() => {
     return new AdapterType({
       name: 'CramAdapter',
       displayName: 'CRAM adapter',
-      configSchema,
+      configSchema: configSchemaF(),
       getAdapterClass: () => import('./CramAdapter').then(r => r.default),
     })
   })
diff --git a/plugins/alignments/src/LinearPileupDisplay/model.ts b/plugins/alignments/src/LinearPileupDisplay/model.ts
index 30bfc2bd75..e4d2572fd7 100644
--- a/plugins/alignments/src/LinearPileupDisplay/model.ts
+++ b/plugins/alignments/src/LinearPileupDisplay/model.ts
@@ -188,9 +188,10 @@ function stateModelFactory(configSchema: AnyConfigurationSchemaType) {
           trackMaxHeight,
           mismatchAlpha,
           rendererTypeName,
+          rendererType,
         } = self
         const configBlob = getConf(self, ['renderers', rendererTypeName]) || {}
-        return self.rendererType.configSchema.create(
+        return rendererType.configSchema.create(
           {
             ...configBlob,
             ...(featureHeight !== undefined ? { height: featureHeight } : {}),
@@ -349,10 +350,7 @@ function stateModelFactory(configSchema: AnyConfigurationSchemaType) {
             if (!self.autorunReady) {
               return
             }
-
-            const { bpPerPx } = view
-
-            self.setCurrSortBpPerPx(bpPerPx)
+            self.setCurrSortBpPerPx(view.bpPerPx)
           },
           { delay: 1000 },
         )
diff --git a/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts b/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts
index 88362f3992..213d5a3fc7 100644
--- a/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts
+++ b/plugins/linear-genome-view/src/BaseLinearDisplay/models/serverSideRenderedBlock.ts
@@ -222,6 +222,7 @@ export function renderBlockData(
     const { adapterConfig, rendererType, error, parentTrack } = display
     const assemblyNames = getTrackAssemblyNames(parentTrack)
     const regionAsm = self.region.assemblyName
+
     if (
       !assemblyNames.includes(regionAsm) &&
       !assemblyNames.some(name => assemblyManager.get(name)?.hasName(regionAsm))
@@ -262,7 +263,7 @@ export function renderBlockData(
         layoutId,
         blockKey: self.key,
         reloadFlag: self.reloadFlag,
-        timeout: 1000000, // 10000,
+        timeout: 1000000,
       },
     }
   } catch (e) {
diff --git a/test_data/volvox/config.json b/test_data/volvox/config.json
index e4cf6fb8ae..3be21b2c66 100644
--- a/test_data/volvox/config.json
+++ b/test_data/volvox/config.json
@@ -15,8 +15,7 @@
         "adapter": {
           "type": "TwoBitAdapter",
           "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "volvox.2bit"
           }
         },
         "displays": [
@@ -59,8 +58,7 @@
         "adapter": {
           "type": "TwoBitAdapter",
           "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "volvox.2bit"
           }
         }
       }
@@ -73,8 +71,7 @@
         "adapter": {
           "type": "TwoBitAdapter",
           "twoBitLocation": {
-            "uri": "volvox.2bit_404",
-            "locationType": "UriLocation"
+            "uri": "volvox.2bit_404"
           }
         }
       }
@@ -103,12 +100,10 @@
         "adapter": {
           "type": "IndexedFastaAdapter",
           "fastaLocation": {
-            "uri": "volvox_del.fa",
-            "locationType": "UriLocation"
+            "uri": "volvox_del.fa"
           },
           "faiLocation": {
-            "uri": "volvox_del.fa.fai",
-            "locationType": "UriLocation"
+            "uri": "volvox_del.fa.fai"
           }
         }
       }
@@ -121,12 +116,10 @@
         "adapter": {
           "type": "IndexedFastaAdapter",
           "fastaLocation": {
-            "uri": "volvox_ins.fa",
-            "locationType": "UriLocation"
+            "uri": "volvox_ins.fa"
           },
           "faiLocation": {
-            "uri": "volvox_ins.fa.fai",
-            "locationType": "UriLocation"
+            "uri": "volvox_ins.fa.fai"
           }
         }
       }
@@ -139,12 +132,10 @@
         "adapter": {
           "type": "IndexedFastaAdapter",
           "fastaLocation": {
-            "uri": "volvox-rev-del.fa",
-            "locationType": "UriLocation"
+            "uri": "volvox-rev-del.fa"
           },
           "faiLocation": {
-            "uri": "volvox-rev-del.fa.fai",
-            "locationType": "UriLocation"
+            "uri": "volvox-rev-del.fa.fai"
           }
         }
       }
@@ -157,12 +148,10 @@
         "adapter": {
           "type": "IndexedFastaAdapter",
           "fastaLocation": {
-            "uri": "volvox-simple-inv.fa",
-            "locationType": "UriLocation"
+            "uri": "volvox-simple-inv.fa"
           },
           "faiLocation": {
-            "uri": "volvox-simple-inv.fa.fai",
-            "locationType": "UriLocation"
+            "uri": "volvox-simple-inv.fa.fai"
           }
         }
       }
@@ -175,12 +164,10 @@
         "adapter": {
           "type": "IndexedFastaAdapter",
           "fastaLocation": {
-            "uri": "output_prefix3.simseq.genome.fa",
-            "locationType": "UriLocation"
+            "uri": "output_prefix3.simseq.genome.fa"
           },
           "faiLocation": {
-            "uri": "output_prefix3.simseq.genome.fa.fai",
-            "locationType": "UriLocation"
+            "uri": "output_prefix3.simseq.genome.fa.fai"
           }
         }
       }
@@ -271,13 +258,11 @@
       "adapter": {
         "type": "VcfTabixAdapter",
         "vcfGzLocation": {
-          "uri": "volvox.dup.vcf.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.dup.vcf.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.dup.vcf.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.dup.vcf.gz.tbi"
           }
         }
       }
@@ -291,13 +276,11 @@
       "adapter": {
         "type": "VcfTabixAdapter",
         "vcfGzLocation": {
-          "uri": "volvox.dup.renamed.vcf.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.dup.renamed.vcf.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.dup.renamed.vcf.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.dup.renamed.vcf.gz.tbi"
           }
         }
       }
@@ -311,19 +294,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sorted-altname.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted-altname.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sorted-altname.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sorted-altname.cram.crai"
         }
       }
     },
@@ -344,20 +318,12 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sorted-altname.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted-altname.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sorted-altname.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sorted-altname.cram.crai"
         },
+
         "fetchSizeLimit": 1000
       },
       "displays": [
@@ -377,19 +343,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sorted-altname.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted-altname.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sorted-altname.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sorted-altname.cram.crai"
         }
       },
       "displays": [
@@ -408,19 +365,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sorted.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sorted.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sorted.cram.crai"
         }
       }
     },
@@ -433,19 +381,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sorted.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sorted.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sorted.cram.crai"
         }
       },
       "displays": [
@@ -464,19 +403,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sorted.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sorted.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sorted.cram.crai"
         }
       },
       "displays": [
@@ -495,13 +425,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted.bam.bai"
           }
         }
       },
@@ -526,13 +454,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted-altname.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted-altname.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted-altname.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted-altname.bam.bai"
           }
         }
       },
@@ -552,13 +478,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted-altname.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted-altname.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted-altname.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted-altname.bam.bai"
           }
         }
       },
@@ -578,13 +502,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted.bam.bai"
           }
         }
       }
@@ -598,13 +520,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted-altname.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted-altname.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted-altname.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted-altname.bam.bai"
           }
         }
       }
@@ -618,13 +538,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted.bam.bai"
           }
         }
       },
@@ -657,13 +575,11 @@
       "adapter": {
         "type": "VcfTabixAdapter",
         "vcfGzLocation": {
-          "uri": "volvox.test.vcf.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.test.vcf.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.test.vcf.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.test.vcf.gz.tbi"
           }
         }
       }
@@ -677,8 +593,7 @@
       "adapter": {
         "type": "NCListAdapter",
         "rootUrlTemplate": {
-          "uri": "volvox_long_names_nclist/{refseq}/trackData.json",
-          "locationType": "UriLocation"
+          "uri": "volvox_long_names_nclist/{refseq}/trackData.json"
         }
       }
     },
@@ -691,13 +606,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted.bam.nonexist",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam.nonexist"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted.bam.bai"
           }
         }
       }
@@ -711,13 +624,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted.bam.bai.nonexist",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted.bam.bai.nonexist"
           }
         }
       }
@@ -731,8 +642,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox.bw.nonexist",
-          "locationType": "UriLocation"
+          "uri": "volvox.bw.nonexist"
         }
       }
     },
@@ -786,8 +696,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray.bw"
         }
       }
     },
@@ -800,8 +709,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray.bw"
         }
       },
       "displays": [
@@ -821,8 +729,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray.bw"
         }
       },
       "displays": [
@@ -842,8 +749,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray.altname.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray.altname.bw"
         }
       }
     },
@@ -918,13 +824,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-long-reads-sv.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-long-reads-sv.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-long-reads-sv.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-long-reads-sv.bam.bai"
           }
         }
       }
@@ -938,19 +842,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-long-reads-sv.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-long-reads-sv.cram"
         },
         "craiLocation": {
-          "uri": "volvox-long-reads-sv.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-long-reads-sv.cram.crai"
         }
       }
     },
@@ -963,19 +858,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-long-reads.fastq.sorted.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-long-reads.fastq.sorted.cram"
         },
         "craiLocation": {
-          "uri": "volvox-long-reads.fastq.sorted.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-long-reads.fastq.sorted.cram.crai"
         }
       }
     },
@@ -988,13 +874,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-long-reads.fastq.sorted.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-long-reads.fastq.sorted.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-long-reads.fastq.sorted.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-long-reads.fastq.sorted.bam.bai"
           }
         }
       }
@@ -1008,19 +892,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-samspec.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-samspec.cram"
         },
         "craiLocation": {
-          "uri": "volvox-samspec.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-samspec.cram.crai"
         }
       }
     },
@@ -1033,13 +908,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-samspec.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-samspec.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-samspec.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-samspec.bam.bai"
           }
         }
       }
@@ -1053,19 +926,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sv.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sv.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sv.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sv.cram.crai"
         }
       }
     },
@@ -1078,13 +942,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sv.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sv.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sv.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sv.bam.bai"
           }
         }
       }
@@ -1102,13 +964,11 @@
       "adapter": {
         "type": "Gff3TabixAdapter",
         "gffGzLocation": {
-          "uri": "volvox.sort.gff3.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.sort.gff3.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.sort.gff3.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.sort.gff3.gz.tbi"
           }
         }
       }
@@ -1122,19 +982,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-sorted.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.cram"
         },
         "craiLocation": {
-          "uri": "volvox-sorted.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-sorted.cram.crai"
         }
       }
     },
@@ -1147,13 +998,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-sorted.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-sorted.bam.bai",
-            "locationType": "UriLocation"
+            "uri": "volvox-sorted.bam.bai"
           }
         }
       }
@@ -1167,13 +1016,11 @@
       "adapter": {
         "type": "VcfTabixAdapter",
         "vcfGzLocation": {
-          "uri": "volvox.filtered.vcf.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.filtered.vcf.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.filtered.vcf.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.filtered.vcf.gz.tbi"
           }
         }
       }
@@ -1187,13 +1034,11 @@
       "adapter": {
         "type": "VcfTabixAdapter",
         "vcfGzLocation": {
-          "uri": "volvox.filtered.vcf.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.filtered.vcf.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.filtered.vcf.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.filtered.vcf.gz.tbi"
           }
         }
       }
@@ -1210,8 +1055,7 @@
       "adapter": {
         "type": "BigBedAdapter",
         "bigBedLocation": {
-          "uri": "volvox.bb",
-          "locationType": "UriLocation"
+          "uri": "volvox.bb"
         }
       }
     },
@@ -1224,13 +1068,11 @@
       "adapter": {
         "type": "BedTabixAdapter",
         "bedGzLocation": {
-          "uri": "volvox-bed12.bed.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox-bed12.bed.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox-bed12.bed.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox-bed12.bed.gz.tbi"
           }
         }
       }
@@ -1257,8 +1099,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray.bw"
         }
       },
       "displays": [
@@ -1278,8 +1119,7 @@
       "adapter": {
         "type": "NCListAdapter",
         "rootUrlTemplate": {
-          "uri": "volvox_genes_nclist/{refseq}/trackData.json",
-          "locationType": "UriLocation"
+          "uri": "volvox_genes_nclist/{refseq}/trackData.json"
         }
       }
     },
@@ -1292,8 +1132,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray.bw"
         }
       },
       "displays": [
@@ -1313,8 +1152,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray.bw"
         }
       }
     },
@@ -1327,8 +1165,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray_negative.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray_negative.bw"
         }
       },
       "displays": [
@@ -1348,8 +1185,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray_negative.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray_negative.bw"
         }
       }
     },
@@ -1362,8 +1198,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray_posneg.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray_posneg.bw"
         }
       },
       "displays": [
@@ -1383,8 +1218,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray_posneg_frac.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray_posneg_frac.bw"
         }
       },
       "displays": [
@@ -1404,8 +1238,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox_microarray_posneg.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox_microarray_posneg.bw"
         }
       }
     },
@@ -1418,8 +1251,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox-sorted.bam.coverage.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam.coverage.bw"
         }
       },
       "displays": [
@@ -1439,8 +1271,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox-sorted.bam.coverage.bw",
-          "locationType": "UriLocation"
+          "uri": "volvox-sorted.bam.coverage.bw"
         }
       }
     },
@@ -1453,8 +1284,7 @@
       "adapter": {
         "type": "PAFAdapter",
         "pafLocation": {
-          "uri": "volvox_fake_synteny_alt.paf",
-          "locationType": "UriLocation"
+          "uri": "volvox_fake_synteny_alt.paf"
         },
         "assemblyNames": ["volvox", "volvox"]
       }
@@ -1468,8 +1298,7 @@
       "adapter": {
         "type": "PAFAdapter",
         "pafLocation": {
-          "uri": "volvox_fake_synteny.paf",
-          "locationType": "UriLocation"
+          "uri": "volvox_fake_synteny.paf"
         },
         "assemblyNames": ["volvox", "volvox"]
       }
@@ -1483,21 +1312,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-rg.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-rg.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-rg.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "volvox-rg.bam.bai"
           }
         }
       }
@@ -1511,19 +1330,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-rg.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-rg.cram"
         },
         "craiLocation": {
-          "uri": "volvox-rg.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-rg.cram.crai"
         }
       }
     },
@@ -1536,8 +1346,7 @@
       "adapter": {
         "type": "BigWigAdapter",
         "bigWigLocation": {
-          "uri": "volvox.bw.nonexist",
-          "locationType": "UriLocation"
+          "uri": "volvox.bw.nonexist"
         }
       }
     },
@@ -1550,13 +1359,11 @@
       "adapter": {
         "type": "VcfTabixAdapter",
         "vcfGzLocation": {
-          "uri": "volvox.filtered.vcf.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.filtered.vcf.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.filtered.vcf.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.filtered.vcf.gz.tbi"
           }
         }
       },
@@ -1588,21 +1395,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "MM-chebi-volvox.bam",
-          "locationType": "UriLocation"
+          "uri": "MM-chebi-volvox.bam"
         },
         "index": {
           "location": {
-            "uri": "MM-chebi-volvox.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "MM-chebi-volvox.bam.bai"
           }
         }
       }
@@ -1616,21 +1413,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "MM-double-volvox.bam",
-          "locationType": "UriLocation"
+          "uri": "MM-double-volvox.bam"
         },
         "index": {
           "location": {
-            "uri": "MM-double-volvox.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "MM-double-volvox.bam.bai"
           }
         }
       }
@@ -1644,21 +1431,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "MM-multi-volvox.bam",
-          "locationType": "UriLocation"
+          "uri": "MM-multi-volvox.bam"
         },
         "index": {
           "location": {
-            "uri": "MM-multi-volvox.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "MM-multi-volvox.bam.bai"
           }
         }
       }
@@ -1672,21 +1449,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "MM-orient-volvox.bam",
-          "locationType": "UriLocation"
+          "uri": "MM-orient-volvox.bam"
         },
         "index": {
           "location": {
-            "uri": "MM-orient-volvox.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "MM-orient-volvox.bam.bai"
           }
         }
       }
@@ -1700,13 +1467,11 @@
       "adapter": {
         "type": "Gff3TabixAdapter",
         "gffGzLocation": {
-          "uri": "single_exon_gene.sorted.gff.gz",
-          "locationType": "UriLocation"
+          "uri": "single_exon_gene.sorted.gff.gz"
         },
         "index": {
           "location": {
-            "uri": "single_exon_gene.sorted.gff.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "single_exon_gene.sorted.gff.gz.tbi"
           }
         }
       }
@@ -1723,8 +1488,7 @@
       "adapter": {
         "type": "GtfAdapter",
         "gtfLocation": {
-          "uri": "volvox.sorted.gtf",
-          "locationType": "UriLocation"
+          "uri": "volvox.sorted.gtf"
         }
       }
     },
@@ -1737,13 +1501,11 @@
       "adapter": {
         "type": "VcfTabixAdapter",
         "vcfGzLocation": {
-          "uri": "volvox.inv.vcf.gz",
-          "locationType": "UriLocation"
+          "uri": "volvox.inv.vcf.gz"
         },
         "index": {
           "location": {
-            "uri": "volvox.inv.vcf.gz.tbi",
-            "locationType": "UriLocation"
+            "uri": "volvox.inv.vcf.gz.tbi"
           },
           "indexType": "TBI"
         }
@@ -1758,19 +1520,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "deep_sequencing.cram",
-          "locationType": "UriLocation"
+          "uri": "deep_sequencing.cram"
         },
         "craiLocation": {
-          "uri": "deep_sequencing.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "deep_sequencing.cram.crai"
         }
       },
       "displays": [
@@ -1857,21 +1610,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "spliced.bam",
-          "locationType": "UriLocation"
+          "uri": "spliced.bam"
         },
         "index": {
           "location": {
-            "uri": "spliced.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "spliced.bam.bai"
           }
         }
       }
@@ -1883,8 +1626,7 @@
       "adapter": {
         "type": "VcfAdapter",
         "vcfLocation": {
-          "uri": "volvox.filtered.lowercase.vcf",
-          "locationType": "UriLocation"
+          "uri": "volvox.filtered.lowercase.vcf"
         }
       },
       "category": ["Integration test"],
@@ -1927,8 +1669,7 @@
       "adapter": {
         "type": "VcfAdapter",
         "vcfLocation": {
-          "uri": "variant_effect_demo_data.vcf",
-          "locationType": "UriLocation"
+          "uri": "variant_effect_demo_data.vcf"
         }
       },
       "category": ["Variants"],
@@ -1941,8 +1682,7 @@
       "adapter": {
         "type": "VcfAdapter",
         "vcfLocation": {
-          "uri": "volvox_vcf_jannovar.vcf",
-          "locationType": "UriLocation"
+          "uri": "volvox_vcf_jannovar.vcf"
         }
       },
       "category": ["Variants"],
@@ -1956,8 +1696,7 @@
       "adapter": {
         "type": "PAFAdapter",
         "pafLocation": {
-          "uri": "volvox-rev-del.paf",
-          "locationType": "UriLocation"
+          "uri": "volvox-rev-del.paf"
         },
         "assemblyNames": ["volvox-rev-del", "volvox"]
       },
@@ -1970,8 +1709,7 @@
       "adapter": {
         "type": "Gff3Adapter",
         "gffLocation": {
-          "uri": "volvox-rev-del.gff",
-          "locationType": "UriLocation"
+          "uri": "volvox-rev-del.gff"
         }
       },
       "assemblyNames": ["volvox-rev-del"]
@@ -1984,21 +1722,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-simple-inv.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-simple-inv.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-simple-inv.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "volvox-simple-inv.bam.bai"
           }
         }
       },
@@ -2012,19 +1740,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-simple-inv.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-simple-inv.cram"
         },
         "craiLocation": {
-          "uri": "volvox-simple-inv.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-simple-inv.cram.crai"
         }
       },
       "assemblyNames": ["volvox"]
@@ -2037,19 +1756,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-simple-inv-paired.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-simple-inv-paired.cram"
         },
         "craiLocation": {
-          "uri": "volvox-simple-inv-paired.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-simple-inv-paired.cram.crai"
         }
       },
       "assemblyNames": ["volvox"]
@@ -2062,21 +1772,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "volvox-simple-inv-paired.bam",
-          "locationType": "UriLocation"
+          "uri": "volvox-simple-inv-paired.bam"
         },
         "index": {
           "location": {
-            "uri": "volvox-simple-inv-paired.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "volvox-simple-inv-paired.bam.bai"
           }
         }
       },
@@ -2090,8 +1790,7 @@
       "adapter": {
         "type": "PAFAdapter",
         "pafLocation": {
-          "uri": "volvox_inv_indels.paf",
-          "locationType": "UriLocation"
+          "uri": "volvox_inv_indels.paf"
         },
         "assemblyNames": ["volvox_random_inv", "volvox"]
       },
@@ -2104,19 +1803,10 @@
       "adapter": {
         "type": "CramAdapter",
         "cramLocation": {
-          "uri": "volvox-inv-pbsim.cram",
-          "locationType": "UriLocation"
+          "uri": "volvox-inv-pbsim.cram"
         },
         "craiLocation": {
-          "uri": "volvox-inv-pbsim.cram.crai",
-          "locationType": "UriLocation"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
-          }
+          "uri": "volvox-inv-pbsim.cram.crai"
         }
       },
       "category": ["Alignments"],
@@ -2130,21 +1820,11 @@
       "adapter": {
         "type": "BamAdapter",
         "bamLocation": {
-          "uri": "paired_end_stranded_rnaseq.bam",
-          "locationType": "UriLocation"
+          "uri": "paired_end_stranded_rnaseq.bam"
         },
         "index": {
           "location": {
-            "uri": "paired_end_stranded_rnaseq.bam.bai",
-            "locationType": "UriLocation"
-          },
-          "indexType": "BAI"
-        },
-        "sequenceAdapter": {
-          "type": "TwoBitAdapter",
-          "twoBitLocation": {
-            "uri": "volvox.2bit",
-            "locationType": "UriLocation"
+            "uri": "paired_end_stranded_rnaseq.bam.bai"
           }
         }
       },
@@ -2158,8 +1838,7 @@
       "adapter": {
         "type": "BedAdapter",
         "bedLocation": {
-          "uri": "arc_test.bed",
-          "locationType": "UriLocation"
+          "uri": "arc_test.bed"
         }
       },
       "assemblyNames": ["volvox"]
@@ -2172,8 +1851,7 @@
       "adapter": {
         "type": "BedpeAdapter",
         "bedpeLocation": {
-          "uri": "volvox.bedpe",
-          "locationType": "UriLocation"
+          "uri": "volvox.bedpe"
         }
       },
       "assemblyNames": ["volvox"],
@@ -2202,16 +1880,13 @@
       "type": "TrixTextSearchAdapter",
       "textSearchAdapterId": "volvox-index",
       "ixFilePath": {
-        "uri": "trix/volvox.ix",
-        "locationType": "UriLocation"
+        "uri": "trix/volvox.ix"
       },
       "ixxFilePath": {
-        "uri": "trix/volvox.ixx",
-        "locationType": "UriLocation"
+        "uri": "trix/volvox.ixx"
       },
       "metaFilePath": {
-        "uri": "trix/volvox_meta.json",
-        "locationType": "UriLocation"
+        "uri": "trix/volvox_meta.json"
       },
       "assemblyNames": ["volvox"]
     },
@@ -2219,16 +1894,13 @@
       "type": "TrixTextSearchAdapter",
       "textSearchAdapterId": "volvox-rev-del-index",
       "ixFilePath": {
-        "uri": "trix/volvox-rev-del.ix",
-        "locationType": "UriLocation"
+        "uri": "trix/volvox-rev-del.ix"
       },
       "ixxFilePath": {
-        "uri": "trix/volvox-rev-del.ixx",
-        "locationType": "UriLocation"
+        "uri": "trix/volvox-rev-del.ixx"
       },
       "metaFilePath": {
-        "uri": "trix/volvox-rev-del_meta.json",
-        "locationType": "UriLocation"
+        "uri": "trix/volvox-rev-del_meta.json"
       },
       "assemblyNames": ["volvox-rev-del"]
     }