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Full-length transcriptome sequencing of longissimus dorsi muscle of yak and cattle-yak based on nanopore

ABSTRACT: Short-reading long RNA sequencing technology has been used to study the transcriptome of skeletal muscle of yak and cattle-yak, but it cannot accurately define full-length transcripts and alternative splicing isoforms. In this study, based on Oxford Nanopore Technologies ( ONT ) full-length sequencing technology, the longissimus dorsi transcription profiles of yak and cattle-yak were obtained. A total of 20323 new genes and 172870 new transcripts were identified, and 159700 new transcripts were successfully annotated. A total of 157812 AS events, 58073 SSRs, 57468 complete ORFs, 2296 transcription factors and 20404 lncRNAs were detected. The analysis found that different structural variations have specific functions, which contribute to the coordination of muscle development and the diversity of gene expression. In addition, the differentially expressed transcripts in longissimus dorsi muscle of yak and cattle-yak were involved in MAPK and JAK-STAT signaling pathway related to muscle development and growth. PPI analysis of differentially expressed transcripts suggested that TNNI2 may play a prominent role in the differences in muscle growth and meat quality traits between yak and cattle-yak. Our study enriched the transcriptome data of yak dorsal muscle and provided a reference for the production of yaks with higher meat yield and better meat quality.

ORGANISM(S): Bos grunniens x Bos taurus Bos grunniens

PROVIDER: GSE269050 | GEO | 2025/06/02

REPOSITORIES: GEO

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