JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. References Sequences screen How to… Learn more about… Import a preloaded reference sequence file Reference sequences Import a custom reference sequence file hg19 reference View a reference sequence file GRCh38 reference Edit reference sequence file properties Obsolete reference sequences Permanently delete a reference sequence file Target regions and hotspots files View and manage target regions files Guidelines for using target regions and hotspots files View and manage hotspots files Hotspots file format Upload a target regions file Test fragments Upload a hotspots file Barcodes and barcode sets View test fragment details Upload history Add a custom test fragment Edit or delete a custom test fragment View a DNA barcode sequence Download a DNA barcode set CSV file Add a custom DNA barcode set Delete a custom DNA barcode set Related Topics Parent topic: Screen descriptions