期刊
BMC GENOMICS
卷 20, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s12864-019-5873-0
关键词
Tibetan pig; spermatozoa; comparative proteomics; TMT; high-altitude adaptability
资金
- National Natural Science Foundation of China [31760669]
- Funding Project of Midwest Colleges and Universities Promoting Comprehensive Strength-Animal Genetics, Breeding and Reproduction Science Subject [502000105]
BackgroundTo illuminate the mechanisms underlying the high-altitude tolerance of Tibetan pig spermatozoa, proteomes of spermatozoa from Tibetan pigs raised in high and low altitudes were compared using a tandem mass tag (TMT)-labeled quantitative proteomics approach.ResultsA total of 77 differentially expressed proteins (DEPs) were identified. Gene Ontology (GO) analysis revealed DEPs that were predominantly associated with the actin cytoskeleton, the tricarboxylic acid (TCA) cycle, and adenosine triphosphate (ATP) metabolism, and were from 12 enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. Three subnetworks were significantly enriched and 10 centric proteins were identified by protein-protein interaction (PPI) network analysis. Relative expression levels of the proteins (ATP5H, CYCS, MYH9 and FN1) were confirmed using Western blotting.ConclusionsOur study is the first to use a tandem mass tag (TMT) approach to analyze Tibetan pig spermatozoa, and provides a foundation to understand the mechanisms underlying the reproductive adaptations of Tibetan pigs to high-altitude environments.
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