Profiling and Functional Analysis of mRNAs during Skeletal Muscle Differentiation in Goats

Animals

Li Li¹  Linjie Wang¹  Tao Zhong¹  Hongping Zhang¹  Yanan Xue¹  Dandan Li¹  Jiaxue Cao¹  Min Tang¹  Hongfan Zhai¹  Dinghui Dai¹  Siyuan Zhan¹  Jiazhong Guo¹ 

[1] Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China;

关键词: muscle differentiation;    transcriptome analysis;    mRNAs;    goat;   

DOI  :  10.3390/ani12081048

来源: DOAJ

【 摘 要 】

Skeletal myogenesis is a complicated biological event that involves a succession of tightly controlled gene expressions. In order to identify novel regulators of this process, we performed mRNA-Seq studies of goat skeletal muscle satellite cells (MuSCs) cultured under proliferation (GM) and differentiation (DM1/DM5) conditions. A total of 19,871 goat genes were expressed during these stages, 198 of which represented novel transcripts. Notably, in pairwise comparisons at the different stages, 2551 differentially expressed genes (DEGs) were identified (p < 0.05), including 1560 in GM vs. DM1, 1597 in GM vs. DM5, and 959 in DM1 vs. DM5 DEGs. The time-series expression profile analysis clustered the DEGs into eight gene groups, three of which had significantly upregulated and downregulated patterns (p < 0.05). Functional enrichment analysis showed that DEGs were enriched for essential biological processes such as muscle structure development, muscle contraction, muscle cell development, striated muscle cell differentiation, and myofibril assembly, and were involved in pathways such as the MAPK, Wnt and PPAR signaling pathways. Moreover, the expression of eight DEGs (MYL2, DES, MYOG, FAP, PLK2, ADAM, WWC1, and PRDX1) was validated. These findings offer novel insights into the transcriptional regulation of skeletal myogenesis in goats.

【 授权许可】

Unknown