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Transcriptomics characteristics and differentiation of subcutaneous adipose tissue among Huainan pigs and its hybrid genetic populations

文献类型： 外文期刊

作者： Yan, Taotao 1 ; Jia, Mingyang 1 ; Li, Jiaxi 1 ; Lan, Xianyong 2 ; Yuan, Liwei 3 ; Xing, Baosong 1 ; Pan, Chuanying 2 ; Lu, Qingxia 1 ; Wang, Jing 1 ;

作者机构： 1.Henan Acad Agr Sci, Inst Anim Husb, Henan Pig Breeding Engn Res Ctr, Henan Key Lab Farm Anim Breeding & Nutr Regulat, Zhengzhou, Peoples R China

2.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling, Shaanxi, Peoples R China

3.Henan Yifa Anim Husb Co Ltd, Hebi, Peoples R China

关键词： adipose tissue; Huainan pig; hybridization; transcriptomics; DEGs

期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN：

年卷期： 2025 年 12 卷

页码：

收录情况： SCI

摘要： Introduction The Huainan pig (HN) is known for its impressive litter size and exquisite meat quality. However, it also exhibits certain drawbacks such as excessive fat deposition, a relatively low percentage of lean meat percentage, and a slower growth rate. Crossbreeding with lean-type breeds, such as Large White, Landrace, and Berkshire can enhance offspring traits, and increase genetic diversity.Methods In this study we employed RNA-seq technology to identify differentially expressed genes (DEGs) in subcutaneous adipose tissue (SAT) samples from HN pigs and their crosses with multiple breeds (with three replicates per group).Results In the SAT of Huainan x Berkshire pigs (BH), Huainan x Yorkshire pigs (YH), and Huainan x Landrace pigs (LH), numerous key functional genes were identified, including LIPG, PLIN2, CPT1A, KLF9, CCND1, LDLR, ACSL1, ACLY and ANGPTL4. Functional enrichment analysis revealed that DEGs were primarily involved in several key pathways in BH, including the peroxisome proliferator-activated receptor (PPAR) signaling, metabolic pathways, arachidonic acid metabolism, and arginine/proline metabolism. Similarly, in LH, DEGs were associated with PPAR, cyclic adenosine monophosphate (cAMP) signaling, mitogen-activated protein kinase (MAPK), and the arginine/proline pathway. In contrast, the main pathways in YH were slightly different, including MAPK, fatty acid elongation, arginine/proline metabolism, and glycine/serine/threonine metabolism. Compared to HN, the differential genes in BH, LH, and YH showed a reduced fat deposition. However, in comparison, LH has a stronger subcutaneous fat deposition ability. Notably, LH exhibited a stronger tendency for subcutaneous fat deposition than the other two groups, while YH had the lowest fat deposition capacity.Conclusion In conclusion, these findings offer valuable insights and provide a foundation for future research on the molecular mechanisms underlying fat deposition in pigs.

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