College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, People's Republic of China.
Department of Animal Science, Werabe University, Werabe, Ethiopia.
J Anim Breed Genet. 2024 May;141(3):235-256. doi: 10.1111/jbg.12841. Epub 2023 Dec 25.
In the past few decades, genomic selection and other refined strategies have been used to increase the growth rate and lean meat production of beef cattle. Nevertheless, the fast growth rates of cattle breeds are often accompanied by a reduction in intramuscular fat (IMF) deposition, impairing meat quality. Transcription factors play vital roles in regulating adipogenesis and lipogenesis in beef cattle. Meanwhile, understanding the role of transcription factors in regulating adipogenesis and lipogenesis in beef cattle has gained significant attention to increase IMF deposition and meat quality. Therefore, the aim of this paper was to provide a comprehensive summary and valuable insight into the complex role of transcription factors in adipogenesis and lipogenesis in beef cattle. This review summarizes the contemporary studies in transcription factors in adipogenesis and lipogenesis, genome-wide analysis of transcription factors, epigenetic regulation of transcription factors, nutritional regulation of transcription factors, metabolic signalling pathways, functional genomics methods, transcriptomic profiling of adipose tissues, transcription factors and meat quality and comparative genomics with other livestock species. In conclusion, transcription factors play a crucial role in promoting adipocyte development and fatty acid biosynthesis in beef cattle. They control adipose tissue formation and metabolism, thereby improving meat quality and maintaining metabolic balance. Understanding the processes by which these transcription factors regulate adipose tissue deposition and lipid metabolism will simplify the development of marbling or IMF composition in beef cattle.
在过去的几十年中,基因组选择和其他精细策略已被用于提高肉牛的生长速度和瘦肉产量。然而,牛品种的快速生长速度往往伴随着肌肉间脂肪(IMF)沉积减少,从而降低了肉质。转录因子在调节牛的脂肪生成和脂生成中起着至关重要的作用。同时,了解转录因子在调节牛的脂肪生成和脂生成中的作用已引起了人们的极大关注,以增加 IMF 沉积和改善肉质。因此,本文旨在全面总结和深入了解转录因子在牛的脂肪生成和脂生成中的复杂作用。本文综述了转录因子在脂肪生成和脂生成中的当代研究、转录因子的全基因组分析、转录因子的表观遗传调控、转录因子的营养调控、代谢信号通路、功能基因组学方法、脂肪组织的转录组分析、转录因子与肉质以及与其他家畜物种的比较基因组学。总之,转录因子在促进牛的脂肪细胞发育和脂肪酸生物合成中起着关键作用。它们控制脂肪组织的形成和代谢,从而改善肉质并维持代谢平衡。了解这些转录因子调节脂肪组织沉积和脂质代谢的过程,将有助于简化牛大理石花纹或 IMF 组成的开发。