畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (9): 1692-1696.doi: 10.11843/j.issn.0366-6964.2015.09.028

• 研究简报 • 上一篇    

狐狸Agouti基因SNPs筛查及其与毛色关联性分析

李英杰1,刘铮铸1*,巩元芳1*,徐桂利1,张磊1,唐家明1, 段玲欣1,刘谢荣1,郭秀玲2,陆奇玉2   

  1. (1.河北科技师范学院动物科技学院,秦皇岛 066004;2.河北昌黎县畜牧发展局,昌黎 066600)
  • 收稿日期:2015-01-23 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 巩元芳,教授,E-mail:gongyuanfang_2004@163.com;刘铮铸,教授,E-mail:liuzhengzhu@163.com
  • 作者简介:李英杰(1983-),男,河南周口人,硕士生,主要从事动物遗传育种研究,E-mail:15810454825@126.com
  • 基金资助:

    国家自然科学基金(31040048;31272412);河北省高等学校创新团队领军人才培育计划(LJRC004);河北省自然科学基金(C2013407101)

SNPs Detection of Agouti Gene and Its Associations with Coat Color in Fox

LI Ying-jie1,LIU Zheng-zhu1* ,GONG Yuan-fang1* ,XU Gui-li1,ZHANG Lei1,TANG Jia-ming1,DUAN Ling-xin1,LIU Xie-rong1,GUO Xiu-ling2,LU Qi-yu2   

  1. (1.College of Animal Science and Technology,Hebei Normal University of Science & Technology,Qinhuangdao 066004,China;2.Animal Husbandry Development Bureau of Changli County of Hebei Province,Changli 066600,China)
  • Received:2015-01-23 Online:2015-09-23 Published:2015-09-23

摘要:

旨在探究狐狸刺豚鼠基因(Agouti)多态性及其与狐狸被毛颜色之间的关系。本研究采用PCR和直接测序的方法对中国5个狐种58只狐狸的Agouti基因部分序列进行了SNPs筛查和单倍型分析。结果表明,在已测序的58只狐狸中首次发现6个SNPs(g.269G>T、g.295C>T、g.325T>G、g.518G>A、g.608C>A和g.846G>A),它们全部存在于内含子2上。狐属的所有个体(25只)在6个位点全部为纯合子基因型,依次为GG、CC、TT、GG、CC和GG型,而北极狐属的所有个体(33只)在这6个位点则均为另一种纯合子基因型,依次为TT、TT、GG、AA、AA和AA型。6个SNPs形成两种单倍型:单倍型Ⅰ(H1:GCTGCG)和单倍型Ⅱ(H2:TTGAAA),分布频率分别为42.1%和57.9%。单倍型Ⅰ(H1)分布于狐属3个狐种的所有受试个体中,单倍型Ⅱ(H2)分布于北极狐属两个狐种的所有受试个体中。进一步分析没有发现6个SNPs及其单倍型与狐狸毛色的明显关联性,但推测它们是区分狐属和北极狐属的重要功能位点和重要单倍型。

Abstract:

 In present study,to investigate the relationship between polymorphism of Agouti gene and coat color in fox,the whole exon 2,whole intron 2 and partial exon 3 sequence of the Agouti gene were sequenced from 58 fox samples,belonging to 5 species of 2 genera.A total of 6 SNPs(g.269G>T,g.295C>T,g.325T>G,g.518G>A,g.608C>A and g.846G>A) in intron 2 were detected firstly,revealing high genetic diversity.All individuals(n=25) of Vulpes vulpe were homozygous at the 6 sites,and the genotype were in order of GG,CC,TT,GG,CC and GG.All individuals(n=33) Alopex lagopus were another homozygous at the 6 sites,and the genotype were in order of TT,TT,GG,AA,AA and AA.Total 2 haplotypes(H1:GCTGCG and H2:TTGAAA) were found at the 6 mutation sites and their frequencies were 42.1% and 57.9%,respectively.H1 was widely distributed in all tested individuals of Vulpes vulpes,but H2 was widely distributed in all tested individuals of Alopex lagopus.Further analysis showed that the detected SNPs and haplotypes were not significant relation to coat color,but speculated that they may be the important functional sites and haplotypes to distinguish Vulpes vulpe and Alopex lagopus.

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