畜牧兽医学报 ›› 2024, Vol. 55 ›› Issue (7): 2951-2962.doi: 10.11843/j.issn.0366-6964.2024.07.015

• 遗传育种 • 上一篇    下一篇

肉用型伊犁马的血液转录组比较分析

李婉卿1(), 曾亚琦1,2, 姚新奎1,2, 王建文1,2, 袁鑫鑫1, 孟晨1, 孙远方1, 彭宣1, 孟军1,2,*()   

  1. 1. 新疆农业大学,乌鲁木齐 830052
    2. 新疆马繁育与运动生理重点实验室,乌鲁木齐 830052
  • 收稿日期:2023-12-25 出版日期:2024-07-23 发布日期:2024-07-24
  • 通讯作者: 孟军 E-mail:1085037205@qq.com;junm86@qq.com
  • 作者简介:李婉卿(1999-),女,新疆乌苏人,硕士生,主要从事动物生产学研究,E-mail:1085037205@qq.com
  • 基金资助:
    新疆维吾尔自治区重大科技专项(2022A02013-1);自治区创新环境(人才、基地)建设专项(PT2311);中央引导地方科技发展专项资金项目(ZYYD2023C02)

Comparative Analysis of Blood Transcriptome in Yili Horses Bred for Meat Performance

Wanqing LI1(), Yaqi ZENG1,2, Xinkui YAO1,2, Jianwen WANG1,2, Xinxin YUAN1, Chen MENG1, Yuanfang SUN1, Xuan PENG1, Jun MENG1,2,*()   

  1. 1. Xinjiang Agricultural University, Urumqi 830052, China
    2. Xinjiang Key Laboratory of Horse Breeding and Sports Physiology, Urumqi 830052, China
  • Received:2023-12-25 Online:2024-07-23 Published:2024-07-24
  • Contact: Jun MENG E-mail:1085037205@qq.com;junm86@qq.com

摘要:

旨在通过对伊犁马不同肉用性能血液转录组进行研究,筛选并分析差异表达基因,为后续伊犁马肉用性能相关研究提供分子基础。本研究从112匹肉用型伊犁马核心群中选取4~5岁健康状况良好的伊犁马母马12匹,依据背膘厚4.4 mm,眼肌面积31.5 cm2以上为肉用性能较好组马匹(HW组),平均体重为528.67 kg;背膘厚度2.2 mm,眼肌面积19.5 cm2以下为普通组马匹(LW组),平均体重为327.00 kg,每组各6匹,采集血样进行转录组测序。生物信息学分析结果表明,筛选出差异表达基因共370个(P<0.05),其中上调基因158个,下调基因212个。GO功能富集分析显示,伊犁马肉用性能可能与G-蛋白偶联受体信号通路过程、细胞外区域、跨膜信号受体活性等条目有关。KEGG通路分析显示,伊犁马肉用性能可能与蛋白质的消化和吸收、甲状腺激素合成、皮质醇的合成和分泌等通路有关。CTSHSSTR1、APOA1和ITM2A等是影响伊犁马肉用性能的候选基因,研究结果为肉用型伊犁马生长发育的分子调控机制提供参考。

关键词: 伊犁马, 肉用性能, 血液, 转录组, 信号通路

Abstract:

The aim of this study was to screen and analyze the differentially expressed genes by studying the blood transcriptome of different meat performance of Yili horses, so as to provide molecular basis for subsequent research on meat performance of Yili horses. The 12 healthy Yili mares aged 4-5 were selected from the core group of 112 meat type Yili horses. The horses with the backfat thickness higher than 4.4 mm and eye muscle area higher than 31.5 cm2 were from the (HW group) with better meat performance, with an average weight of 528.67 kg; The horses with the backfat thickness lower than 2.2 mm, eye muscle area lower than 19.5 cm2 were from the common group (LW group) with an average weight of 327.00 kg, with 6 horses in each group. Blood samples were collected for transcriptome sequencing. The results of bioinformatics analysis showed that a total of 370 differentially expressed genes were screened (P<0.05), including 158 upregulated genes and 212 downregulated genes. GO functional enrichment analysis showed that the meat performance of Yili horses might be related to the G-protein coupled receptor signaling pathway process, extracellular regions, and transmembrane signal receptor activity. KEGG pathway analysis showed that the meat performance of Yili horses might be related to pathways such as protein digestion and absorption, thyroid hormone synthesis, and cortisol synthesis and secretion. CTSH, SSTR1, APOA1, and ITM2A could be candidate genes for meat performance of Yili horse breeds, and the research results are intended to provide reference for a better understanding of the molecular regulatory mechanism of growth and development of meat-producing Yili horses.

Key words: Yili horses, meat performance, blood, transcriptome, signal pathway

中图分类号: