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Depletion of Abundant Transcripts Using Cas-9 and Long-read Sequencing Improves Transcriptome Annotation of the Polar Bear


Transcriptome studies evaluating whole blood and tissues are often confounded by overrepresentation of highly abundant transcripts, which compete with and prevent detection of rare RNA transcripts, obscuring their biological importance.

In this webinar, Ashley discusses Long-DASH, an adapted CRISPR/Cas9-based method, to deplete highly-abundant transcripts for isoform-level transcriptome analysis using long-read sequencing in a non-model organism.

She demonstrates how she used Long-DASH to sequence full-length cDNA using Oxford Nanopore R2C2 long-read and Illumina Smart-seq2 approaches and applied the method to create an isoform-level transcriptome from whole blood samples derived from polar bears (Ursus maritimus).

Authors: Ashley L Byrne, PhD

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