The VGLL2 gene participates in muscle development in Gushi chickens
2025
Wenya Li | Haoxiang Ma | Yanxing Wang | Yushi Zhang | Yang Liu | Ruili Han | Hong Li | Hanfang Cai | Xiaojun Liu | Xiangtao Kang | Ruirui Jiang | Zhuanjian Li
Previous studies have shown that VGLL2, a member of the mammalian Vestigial-like (VGLL) family, plays important roles in the growth and development of animal skeletal muscle, but its specific role in the development of chicken skeletal muscle is unclear. The main goal of this study was to explore the biological functions of VGLL2 in the development of chicken skeletal muscle and the proliferation and differentiation of skeletal muscle cells in vitro. In this study, we detected the effect of VGLL2 on the proliferation of myoblasts by CCK8, EdU and flow cytometry analyses after overexpressing and interfering with VGLL2. Indirect immunofluorescence was used to detect the effect of VGLL2 on the differentiation of myoblasts. qRT-PCR and hematoxylin and eosin (H&E) staining were used to evaluate the effects of VGLL2 overexpression on the growth rate and muscle fiber structure of chicken skeletal muscle. The results showed that VGLL2 inhibited the proliferation of primary cultured chicken myoblasts and promoted the differentiation of these cells. Interestingly, food intake and muscle fiber development were significantly enhanced by the overexpression of VGLL2 in chickens. Taken together, these data demonstrate that the VGLL2 gene may be a useful marker for improving muscle mass in poultry.
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