Anhui Agricultural Science Bulletin >
2025 , Vol. 31 >Issue 20: 57 - 63
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2025.20.014
Research progress of myostatin gene MSTN in livestock and poultry genetic breeding
Received date: 2025-02-16
Online published: 2025-10-31
The myostatin gene MSTN, a crucial regulator of muscle development, holds significant research value and application potential in livestock production. This article reviewed the research progress on the mechanism of action of the MSTN gene, its role in livestock and poultry growth, and its application in livestock and poultry breeding improvement. MSTN inhibits the proliferation and differentiation of myoblasts, thereby reducing muscle growth rate and meat yield. Its regulatory process involves multiple coordinated signaling pathways, such as modulating the expression of factors like Myf5, MyoD, and CDK2, and interacting with molecules including insulin-like growth factor-1 (IGF-1). During animal growth, MSTN regulates skeletal muscle development by suppressing both the hyperplasia and hypertrophy of muscle fibers, and it can also influence fatty acid metabolism by altering mitochondrial function in skeletal muscle. Regarding breeding applications, key SNPs have been identified within the MSTN gene in cattle, goats, pigs, and other livestock. These SNPs can serve as molecular markers for meat traits, facilitating efficient breeding programs. Utilizing individuals with MSTN mutations through crossbreeding strategies (e.g., two-way or three-way crosses) alongside precise feeding management enables the development of superior breeds with excellent characteristics. Furthermore, modern gene-editing technologies like CRISPR/Cas9 can be applied to the MSTN gene to promote muscle growth, improve meat quality, and create new livestock lines. This review provides a reference for the application of the MSTN gene in livestock and poultry genetic breeding.
DUAN Jiaqi , ZHAO Shile , JIANG Ke , GAO Liangchen , LIU Wenjing , LI Hui , WANG Jian . Research progress of myostatin gene MSTN in livestock and poultry genetic breeding[J]. Anhui Agricultural Science Bulletin, 2025 , 31(20) : 57 -63 . DOI: 10.16377/j.cnki.issn1007-7731.2025.20.014
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