Comparative proteomic analysis of Tibetan pig spermatozoa at high and low altitudes

Autor: Tian Mengfang, Ren Zili, Qiang Fu, Xiaoli Lu, Yangzong Qiangba, Zhao Yanling, Cheng Zhipeng
Rok vydání: 2019
Předmět:
Zdroj: BMC Genomics
BMC Genomics, Vol 20, Iss 1, Pp 1-8 (2019)
ISSN: 1471-2164
Popis: Background To 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. Results A 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. Conclusions Our 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.
Databáze: OpenAIRE
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