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Transcriptome analysis of muscle atrophy in Leizhou black goats: identification of key genes and insights into limb-girdle muscular dystrophy

文献类型： 外文期刊

作者： Wang, Ke 1 ; Xu, Mengning 3 ; Han, Xiaotao 1 ; Liu, Hu 1 ; Han, Jiancheng 1 ; Sun, Wei 4 ; Zhou, Hanlin 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Zhanjiang Expt Stn, Zhanjiang 524013, Peoples R China

2.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572025, Peoples R China

3.Nanjing Agr Univ, Coll Anim Sci & Technol, Nanjing 210095, Peoples R China

4.Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou 225009, Peoples R China

5.Yangzhou Univ, Int Joint Res Lab Univ Jiangsu Prov China Domest A, Yangzhou 225009, Peoples R China

关键词： Goat; Comparative transcriptome; Muscle atrophy

期刊名称：BMC GENOMICS （ 影响因子：3.7； 五年影响因子：4.2 ）

ISSN： 1471-2164

年卷期： 2025 年 26 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundThe Leizhou Black Goat (LZBG), a prominent breed in tropical China's meat goat industry, frequently exhibits inherent muscle atrophy and malnutrition-related traits. Particularly, muscles critical for support, such as the legs, often display severe symptoms. This study aimed to investigate the differential genes and signaling pathways influencing muscle development and atrophy across various muscle locations in LZBG from a muscular atrophy-affected family.ResultsDifferential expression analysis revealed 536 mRNAs with significant differences across three muscle groups. Marked variations in mRNA expression patterns were observed between leg and back muscles versus abdominal muscles, reflecting characteristics similar to those found in limb-girdle muscular dystrophy. The analysis identified several key differentially expressed genes implicated in muscle development and atrophy, including PITX1, COLQ, ZIC1, SBK2, and TBX1, showed Significant difference expression levels and expression patterns with normal individuals. Functional annotation and protein interaction network analysis indicated enrichment of these genes in muscle-related pathways. Protein interaction network analysis identified five key clusters related to muscle function and development.ConclusionThe mRNA expression patterns of the leg and back muscles in LZBG from a muscular atrophy-affected family differed significantly from those of the abdominal muscle, displaying typical characteristics of limb-girdle muscular dystrophy. Genes such as PITX1, TBX1, SBK2, TCAP, and COLQ were identified as key regulators of muscle development and contributors to muscle atrophy. These findings enhance our understanding of the mechanisms underlying muscular atrophy in LZBGs. The identification of key genes and pathways provides valuable insights for developing future breeding strategies aimed at improving meat production efficiency.

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