中国畜牧兽医 ›› 2019, Vol. 46 ›› Issue (10): 2998-3006.doi: 10.16431/j.cnki.1671-7236.2019.10.021

• 遗传繁育 • 上一篇    下一篇

水貂ASIP基因单倍型检测及其皮肤组织mRNA差异表达分析

宋兴超1, 刘琳玲1, 王淑明2, 宋姗姗1, 徐超1, 杨童奥1, 刘宗岳1, 丛波1, 张志明2, 杨福合1, 彭英华1   

  1. 1. 中国农业科学院特产研究所, 农业农村部特种经济动物遗传育种与繁殖重点实验室, 吉林省特种经济动物分子生物学省部共建国家重点实验室, 长春 130112;
    2. 大连名威貂业有限公司, 大连 116100
  • 收稿日期:2019-01-25 出版日期:2019-10-20 发布日期:2019-10-21
  • 通讯作者: 彭英华 E-mail:pengyinghua@caas.cn
  • 作者简介:宋兴超(1982-),男,河北保定人,博士,研究方向:特种经济动物遗传育种,E-mail:songxingchao@caas.cn
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项(1610342017011);中国农业科学院科技创新工程-特种动物育种科技创新团队(CAAS-ASTIP-2017-ISAPS02)

Haplotype Detection and mRNA Expression Level Analysis of ASIP Gene in Skin of American Mink (Neovison vison)

SONG Xingchao1, LIU Linling1, WANG Shuming2, SONG Shanshan1, XU Chao1, YANG Tongao1, LIU Zongyue1, CONG Bo1, ZHANG Zhiming2, YANG Fuhe1, PENG Yinghua1   

  1. 1. State Key Laboratory of Special Economic Animal Molecular Biology, Key Laboratory of Genetics, Breeding and Reproduction of Special Economic Animals, Ministry of Agriculture and Rural Affairs, Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun 130112, China;
    2. Dalian Mingwei Mink Limited Corporation, Dalian 116100, China
  • Received:2019-01-25 Online:2019-10-20 Published:2019-10-21

摘要: 试验旨在探究鼠灰色(agouti signaling protein,ASIP)基因单核苷酸多态性(single nucleotide polymorphisms,SNPs)形成的单倍型及皮肤组织差异表达mRNA对水貂被毛色素沉积的影响。通过PCR扩增、Sanger测序技术对金州黑水貂、红眼白水貂和名威银蓝水貂ASIP基因进行SNPs单倍型检测分析,利用实时荧光定量PCR技术检测3种毛色皮肤组织ASIP基因的表达量,分析单倍型及mRNA差异表达与毛色表型的相关性。结果表明,301个样本中共检测到10个SNPs,内含子2中4个SNPs (G18A、A159G、G235T、C1189T)共形成10种单倍型(Hap1~Hap10),其中Hap1(GAGC)和Hap2(GAGT)是3种不同毛色水貂群体的共享单倍型;部分内含子3中6个SNPs (C252T、A290C、G298C、A340G、T343C、T379C)形成4种单倍型(Hap1~Hap4),且Hap2(CCCGCC)是名威银蓝水貂群体的主体单倍型。5个位点(A290C、G298C、A340G、T343C、T379C)均处于完全连锁不平衡状态。实时荧光定量PCR检测显示,金州黑水貂和名威银蓝水貂ASIP基因mRNA表达量分别是红眼白水貂的1.25和0.95倍,三者间差异不显著(P>0.05)。研究结果初步提示,ASIP基因调控水貂不同毛色表型形成的分子机制可能存在差异。

关键词: 水貂; ASIP基因; 单倍型; 差异表达; 被毛颜色

Abstract: The aim of this study was to explore the effects of haplotype formed by single nucleotide polymorphisms (SNPs) of agouti signaling protein (ASIP) gene and analyze the association of mRNA differential expression with coat color phenotype in American mink (Neovison vison).The SNPs haplotypes of ASIP gene in Jinzhou Black mink,Red eye White mink and Mingwei Silverblue mink were detected by PCR and Sanger direct sequencing technology.The mRNA expression levels of ASIP gene in skin tissue with three kinds of coat color were detected by Real-time PCR,and then the correlation between haplotypes,mRNA differential expression levels and coat color traits were analyzed.The results showed that a total of 10 SNPs were detected in 301 samples,of which 4 SNPs (G18A,A159G,G235T and C1189T) were located in intron 2,6 SNPs(C252T,A290C,G298C,A340G,T343C and T379C) were located in partial intron 3.10(Hap1-Hap10) and 4 (Hap1-Hap4) haplotypes were formed by 4 and 6 SNPs,respectively,of which Hap1 (GAGC) and Hap2 (GAGT) were shared haplotypes in intron 2,Hap2 (CCCGCC) was the main haplotype in Mingwei Silverblue mink.5 loci (A290C,G298C,A340G,T343C and T379C) were in complete linkage disequilibrium.Real-time PCR results showed that the mRNA expression levels of ASIP gene of Jinzhou Black mink and Mingwei Silverblue mink were 1.25 and 0.95 times,which were higher than that of Red eye White mink,there was no significant difference among three coat colors (P>0.05).The results indicated that the molecular mechanism of ASIP gene regulating the formation of mink coat color phenotype might be different.

Key words: mink; ASIP gene; haplotype; differential expression; coat color

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