畜牧兽医学报 ›› 2019, Vol. 50 ›› Issue (10): 1985-1996.doi: 10.11843/j.issn.0366-6964.2019.10.004

• 遗传育种 • 上一篇    下一篇

基于全基因组测序的蒙古马运动相关的正向选择基因筛选

潘静, 吴凯峰, 周欢敏*, 张焱如*   

  1. 内蒙古农业大学生命科学学院 内蒙古生物制造重点实验室, 呼和浩特 010018
  • 收稿日期:2019-03-11 出版日期:2019-10-23 发布日期:2019-10-23
  • 通讯作者: 周欢敏,主要从事动物基因组与生物技术研究,E-mail:zhouhuanminim@163.com;张焱如,主要从事动物遗传与发育研究,E-mail:yanru1964@163.com
  • 作者简介:潘静(1989-),女,内蒙古呼和浩特人,博士,主要从事动物基因组与生物技术研究,E-mail:panjing921@163.com
  • 基金资助:
    国家自然科学基金(31560621)

Athletics-related Positive Selective Genes Screened in Mongolian Horse by Whole-genome Sequencing

PAN Jing, WU Kaifeng, ZHOU Huanmin*, ZHANG Yanru*   

  1. Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot 010018, China
  • Received:2019-03-11 Online:2019-10-23 Published:2019-10-23

摘要: 旨在从基因组水平对蒙古马运动性状涉及的相关基因进行分析。本研究利用全基因组测序技术,对蒙古马的血液进行采样和基因组测序,并且结合人、牛、小鼠等7种哺乳动物的基因组数据,对蒙古马的特有基因和正向选择基因进行筛选。分析数据得到已注释的蛋白编码基因19 475种,并筛选出了38种蒙古马特有基因和45种正向选择基因。根据GO富集、KEGG通路富集分析和前人研究,发现包括MAPK13、CCN2、FSCN3、BTG1、TF等17种正向选择的蛋白编码基因可能参与蒙古马的运动过程。这些运动相关正向选择基因的生物学功能涉及到肌动蛋白丝结构、心肌收缩的正调节、钙离子结合、调节细胞内pH、血管生成、胶原生物合成过程的正调节等。而7种miRNAs(包括eca-miR-302c、eca-miR-8974、eca-miR-9077等)则通过与mRNA的3'UTR区域作用分别潜在靶向调控运动相关的MAPK13、LOC100057755、EHD4、MICAL3、TMBIM1和F11R。以上涉及的运动相关正向选择的蛋白编码基因可以促进人们对于蒙古马运动性状的了解,并为靶向竞技型的家畜育种提供分子理论基础。

Abstract: The purpose of the work was to explore the athletics-related genes of Mongolian horse at genome level. Based on whole-genome sequencing technology, the blood of Mongolian horse was sampled and sequenced. The specific genes and positive selection genes of Mongolian horse were further detected combined with the mammalian genome databases of 7 species including human, bovine, mouse, etc.. The 19 475 annotated protein-coding genes were obtained via data analysis, while 38 specific genes and 45 positive selection genes were screened in Mongolian horse. By GO enrichment, KEGG pathway enrichment analyses and previous studies, the 17 protein-coding genes of positive selection including MAPK13, CCN2, FSCN3, BTG1 and TF, etc. were considered to be probably involved in athletic performance of Mongolian horse. The biological functions of the above 17 protein-coding genes contained actin filament organization, positive regulation of cardiac muscle contraction, calcium ion binding, regulation of intracellular pH, angiogenesis, positive regulation of collagen biosynthetic process, etc.. The mRNA 3'UTR of MAPK13, LOC100057755, EHD4, MICAL3, TMBIM1 and F11R were targeted by 7 miRNAs (such as eca-miR-302c, eca-miR-8974, eca-miR-9077, etc.). The above athletics-related protein-coding genes of positive selection can make people comprehend athletics character of Mongolian horse, while also provide molecular theoretical basis for targeting competitive livestock breeding.

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