生物技术通报 ›› 2019, Vol. 35 ›› Issue (11): 55-63.doi: 10.13560/j.cnki.biotech.bull.1985.2019-0621

• 研究报告 • 上一篇    下一篇

岷县黑裘皮羊微卫星多态性及与生产性状的关联分析

张瑞1, 2, 4, 郎侠1, 2, 吴建平1, 2, 3, 王彩莲1, 2, 梁婷玉1, 2, 3   

  1. 1. 甘肃省农业科学院 畜草与绿色农业研究所,兰州 730030;
    2. 甘肃省牛羊种质与秸秆饲料化重点实验室,兰州 730030;
    3. 西北师范大学新农村发展研究院,兰州 730070;
    4. 甘肃农业大学动物科学技术学院,兰州 730070
  • 收稿日期:2019-07-07 出版日期:2019-11-26 发布日期:2019-11-19
  • 作者简介:张瑞,女,博士研究生,研究方向:动物遗传育种与繁殖;E-mail:1562083832@qq.com
  • 基金资助:
    甘肃省现代草食畜产业技术体系(GARS-08)

Correlation Analysis Between Microsatellite Polymorphism and Production Traits in Black Fur Sheep in Min County

ZHANG Rui1, 2, 4, LANG Xia1, 2, WU Jian-ping1, 2, 3, WANG Cai-lian1, 2, LIANG Ting-yu1, 2, 3   

  1. 1. Animal Husbandry,Pasture and Green Agriculture Institute,Gansu Academy of Agricultural Sciences,Lanzhou 730030;
    2. Key Laboratory for Sheep,Cattle Germplasm and Straw Feed in Gansu Province,Lanzhou 730030;
    3. New Rural Development Research Institute,Northwest Normal University,Lanzhou 730070;
    4. College of Animal Science&Technology,Gansu Agricultural University,Lanzhou 730070
  • Received:2019-07-07 Published:2019-11-26 Online:2019-11-19

摘要: 分析10个微卫星位点在岷县黑裘皮羊群体中的遗传多样性及与生产性状的关联效应,为该品种种质资源的保护、利用和性状改良提供理论依据。选取12、24和36月龄的岷县黑裘皮羊各48只,测定其体重、体高、体长、胸宽、胸深和胸围性状,利用10对微卫星引物,采用PCR扩增和毛细管电泳技术,对岷县黑裘皮羊进行遗传多样性检测,并分析各位点基因型与生产性状的关联效应。10个位点在该群体中共检测到112个等位基因,平均等位基因数为11.2个,平均有效等位基因数为4.4508,平均观测杂合度为0.521 8,平均期望杂合度为0.765 7,平均多态信息含量为0.728 9;且10个位点均与不同月龄岷县黑裘皮羊体重、体高、体长、胸宽、胸深及胸围具有不同程度的关联效应。所选的10个微卫星位点多态性丰富,可用于评估岷县黑裘皮羊的遗传资源。此外,所选位点与生产性状均具有不同程度的关联性,可用于指导岷县黑裘皮羊的性状改良及育种工作。

关键词: 岷县黑裘皮羊, 微卫星, 生产性状, 关联分析

Abstract: The genetic diversity of 10 microsatellite loci in the black fur sheep population of Min county and its correlations with production traits were analyzed,which provides a theoretical basis for the protection,utilization and traits improvement of the germplasm resources. A total of 48 black fur sheep of Min county at 12,24 and 36 months old were selected,respectively. Their body weight,body height,body length,chest width,chest depth and chest circumference were measured. Meanwhile,10 pairs of microsatellite primers,PCR and gel electrophoresis technology were used to detect the genetic diversity of the black fur sheep in Min county and to analyze the correlation between various gene types and production traits. A total of 112 alleles were detected at 10 microsatellite loci. The average alleles was 11.2,the average effective alleles was 4.450 8,the average observed heterozygosity was 0.521 8,the average expected heterozygosity was 0.765 7,the average polymorphism information content was 0.728 9;10 loci had various degrees of correlation with body weight,body height,body length,chest width,chest depth and chest circumference. The selected 10 microsatellite loci were polymorphic and could be used to evaluate the genetic resources of black fur sheep in Min county. In addition,the selected loci were correlated with production traits at different degrees,which could be used to guide the trait improvement and breeding of black fur sheep in Min county.

Key words: black fur sheep in Min county, microsatellite, production traits, association analysis