Transcriptomic analysis reveals diverse expression patterns underlying the fiber diameter of oxidative and glycolytic skeletal muscles in steers

文献类型： 外文期刊

第一作者： Wang, Wenxiang

作者： Wang, Wenxiang;Zhang, Tianliu;Du, Lili;Li, Keanning;Zhang, Lupei;Li, Haipeng;Gao, Xue;Xu, Lingyang;Li, Junya;Gao, Huijiang;Gao, Huijiang

作者机构：

关键词： RNA sequencing; Cattle; Differentially expressed genes; Muscle fiber size; WGCNA

期刊名称：MEAT SCIENCE （ 影响因子：7.1； 五年影响因子：6.6 ）

ISSN： 0309-1740

年卷期： 2024 年 207 卷

页码：

收录情况： SCI

摘要： Skeletal muscles consist of heterogeneous fibers with various contractile and metabolic properties that affect meat quality. The size of muscle fibers contributes to muscle mass and myopathy. Thus, improved understanding of the expression patterns underlying fiber size might open possibilities to change them using genetic methods. The aim of this study was to reveal transcriptomic landscapes of one oxidative (Psoas major) and three glycolytic (Longissimus lumborum, Triceps brachii, and Semimembranosus) muscles. Principal component analysis (PCA) showed significant differences in gene expression among the four muscles. Specifically, 2777 differentially expressed genes (DEGs) were detected between six pairwise comparisons of the four muscles. Weighted gene coexpression network analysis (WGCNA) identified six modules, which were significantly associated with muscle fiber diameter. We also identified 23 candidate genes, and enrichment analysis showed that biosynthesis of amino acids (bta01230), sarcomere (GO:0030017), and regulation of actin cytoskeleton (bta04810) overlapped in DEGs and WGCNA. Nineteen of these genes (e.g., EEF1A2, FARSB, and PINK1) have been reported to promote or inhibit muscle growth and development. Our findings contribute to the understanding of fiber size differences among oxidative and glycolytic muscles, which may provide a basis for breeding to improve meat yield.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序