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- Title
Combined Multi-Omics Analysis Reveals the Potential Role of ACADS in Yak Intramuscular Fat Deposition.
- Authors
Xu, Fang; Wang, Haibo; Qin, Chunyu; Yue, Binglin; Yang, Youzhualamu; Wang, Jikun; Zhong, Jincheng; Wang, Hui
- Abstract
The Yak (Bos grunniens) is a special breed of livestock predominantly distributed in the Qinghai–Tibet Plateau of China. Intramuscular fat (IMF) content in beef cattle is a vital indicator of meat quality. In this study, RNA-Seq and Protein-Seq were respectively employed to sequence the transcriptome and proteome of the longissimus dorsi (LD) tissue from 4-year-old yaks with significant differences in IMF content under the same fattening conditions. Five overlapping genes (MYL3, ACADS, L2HGDH, IGFN1, and ENSBGRG00000000-926) were screened using combined analysis. Functional verification tests demonstrated that the key gene ACADS inhibited yak intramuscular preadipocyte (YIMA) differentiation and proliferation, promoted mitochondrial biogenesis gene expression, and increased the mitochondrial membrane potential (MMP). Furthermore, co-transfection experiments further demonstrated that interfering with ACADS reversed the effect of PPARα agonists in promoting lipid differentiation. In conclusion, ACADS potentially inhibits lipid deposition in YIAMs by regulating the PPARα signalling pathway. These findings offer insights into the molecular mechanisms underlying yak meat quality.
- Subjects
YAK; LIVESTOCK breeds; LIVESTOCK breeding; MEAT quality; MEMBRANE potential
- Publication
International Journal of Molecular Sciences, 2024, Vol 25, Issue 16, p9131
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms25169131