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Published on: January 30, 2017
Complete characterization of the yak testicular development using accurate full-length transcriptome sequencing
Xingdong Wang1, Shaoke Guo1, Lin Xiong1
1Key Laboratory of Yak Breeding of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, PR China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, PR China.
Full-length transcript sequencing revealed extensive alternative splicing in yak testicular tissues. This study identified thousands of novel transcripts and key regulatory genes, advancing our understanding of male reproductive development and sterility.
Area of Science:
- Genomics
- Molecular Biology
- Reproductive Biology
Background:
- Alternative splicing is common in testicular tissues.
- Short-read sequencing has limitations in analyzing splicing variants.
- Full-length transcript sequencing is crucial for accurate analysis.
Purpose of the Study:
- To characterize the full-length transcriptome of yak testicular tissues.
- To identify novel transcripts and alternative splicing events.
- To investigate gene regulatory networks in yak testicular development.
Main Methods:
- Full-length transcriptome sequencing using Oxford Nanopore Technologies.
- Bioinformatic analysis of sequencing data, including ORF prediction, fusion transcript detection, and SSR identification.
- Structural analysis and functional annotation of novel transcripts.
- Weighted gene co-expression network analysis.
Main Results:
- Identification of 47,185 ORFs, 7,645 fusion transcripts, 15,355 alternative splicing events, and 35,503 long non-coding RNAs.
- Discovery of 40,038 novel transcripts, with 9,568 successfully annotated.
- Uncovering key regulatory pathways and hub genes associated with yak testicular development.
Conclusions:
- Full-length transcript sequencing provides a comprehensive view of the yak testicular transcriptome.
- The study identified numerous novel transcripts and regulatory elements.
- Findings offer valuable data for understanding male reproductive function and sterility in yaks.
