Comparative transcriptome analysis of winter yaks in plateau and plain
2022
Laokui, | Guan, Jiuqiang | Yixi, Kangzhu | Shu, Tao | Chai, Zhixin | Wang, Jikun | Wang, Hui | Wu, Zhijuan | Cai, Xin | Zhong, Jincheng | Luo, Xiaolin
The yak is an important source for the people living and ecological environment in the Qinghai–Tibet Plateau. In every winter, many domestic yaks will lose bodyweight or dead under cold and food scarcity. Moving the plateau yaks to farm in the plain is a useful approach to reduce their environmental stress and gain more production. In this study, we measured growth, slaughter and beef quality traits every month and sequenced mRNA expression levels of muscles of two groups yaks living in plateau and plain respectively. We found there is significant difference (p‐value <0.01) in the third (60 days), fourth (90 days), fifth (120 days) and sixth (150 days) weights between subpopulations in the plateau and plain. We identified 540 different expressed genes (DEGs) including 123 known genes and 417 unknown genes. Using the weighted correlation network analysis (WGCNA) to build a co‐express network, the modules were strong relative to weight traits. The findings highlighted the underlying way and a relative network to yield a new view about gene expression between the yaks living plateau and plain.
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