Multi-Omics Profiling of Lipid Variation and Regulatory Mechanisms in Poultry Breast Muscles

文献类型： 外文期刊

第一作者： Zhang, Hongyuan

作者： Zhang, Hongyuan;Dai, Yaqi;Gu, Jinxing;Li, Hongtai;Wu, Ran;Jia, Jiyu;Shen, Jingqi;Han, Ruili;Sun, Guirong;Li, Wenting;Liu, Xiaojun;Li, Guoxi;Li, Wanli;Zhao, Yinli

作者机构：

关键词： poultry; breast Muscles; lipid Variation; transcriptome; positively selected genes

期刊名称：ANIMALS （ 影响因子：2.7； 五年影响因子：3.2 ）

ISSN： 2076-2615

年卷期： 2025 年 15 卷 5 期

页码：

收录情况： SCI

摘要： This study aimed to elucidate the genetic basis of lipid composition in the breast muscles of poultry, including AA broilers, dwarf guinea fowl, quails, and pigeons, and the impact of artificial selection on lipid traits. By employing lipidomics and transcriptomic sequencing, the research analyzed the chest muscle tissues of these four poultry. A total of 1542 lipid molecules were identified, with 711 showing significant differences among species. These lipids primarily belonged to subclasses such as TG, PC, Phosphatidylethanolamine (PE), Ceramides (Cer), and Diglyceride (DG), with each species demonstrating distinct profiles in these subclasses. Additionally, 5790 orthologous genes were identified, with 763, 767, 24, and 8 genes in AA broilers, dwarf guinea fowl, quails, and pigeons, respectively, exhibiting positive selection (Ka/Ks > 1). Notably, 114 genes related to lipid metabolism displayed significant differential expression, particularly between AA broilers and dwarf guinea fowl. The findings revealed that the metabolic pathways of PC and LPC lipid molecules in the glycerophospholipid pathway, as well as TG lipid molecules in the glycerolipid pathway, exhibited marked interspecies differences, potentially contributing to variations in breast muscle lipid composition. These results provide a solid foundation for understanding the lipid composition and molecular regulatory mechanisms in diverse poultry, offering valuable insights for further research in poultry lipid metabolism and artificial breeding programs.

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