中国畜牧兽医 ›› 2021, Vol. 48 ›› Issue (4): 1313-1322.doi: 10.16431/j.cnki.1671-7236.2021.04.018

• 遗传繁育 • 上一篇    下一篇

马鹿特异性SNP分子标记的验证

范欢欢, 王天骄, 董依萌, 李洋, 刘汇涛, 邢秀梅   

  1. 中国农业科学院特产研究所, 特种经济动物分子生物重点实验室, 长春 130112
  • 收稿日期:2020-10-22 出版日期:2021-04-20 发布日期:2021-04-16
  • 通讯作者: 邢秀梅 E-mail:xingxiumei2004@126.com
  • 作者简介:范欢欢(1992-),男,安徽宿州人,硕士,研究方向:特种动物遗传资源,E-mail:fanhuanhuan911@163.com
  • 基金资助:
    中国农业科学院基本科研业务费基金资助项目(1610342020021、1610342020027、1610342020025)

Verification of Red Deer Specific Molecular Marker SNP

FAN Huanhuan, WANG Tianjiao, DONG Yimeng, LI Yang, LIU Huitao, XING Xiumei   

  1. Key Laboratory of Molecular Biology of Special Economic Animals, Institute of Special Products, Chinese Academy of Agricultural Sciences, Changchun 130112, China
  • Received:2020-10-22 Online:2021-04-20 Published:2021-04-16

摘要: 试验旨在对基于基因分型测序(genotyping by sequencing,GBS)技术筛选出的马鹿特异性SNPs位点的准确性进行验证,为梅花鹿、马鹿及其杂交后代的鉴别提供可靠的分子遗传标记。随机选取30个马鹿特异性SNPs位点,根据SNPs位点前后各200 bp的序列,利用Primer Premier 6.0软件设计特异性引物,以随机选取的验证样本DNA作为模板进行PCR扩增,并进行Sanger测序,对测序结果利用BioEdit软件进行峰图的观察,利用Mega 6.0软件对测序得到的序列进行比对分析并观察每个特异性SNP位点在不同验证群体中的基因型,对每一个马鹿特异性位点的峰图和比对信息进行统计分析。结果表明,30个马鹿特异性位点中有28个和前期研究结果一致,其中1个SNP位点(SNP3)中G等位基因在梅花鹿中的基因频率为0.05,而G等位基因在马鹿中的基因频率为1,G等位基因在马鹿个体中的基因频率比在梅花鹿个体中高,同时,利用SPSS 22.0进行统计分析发现,该位点在马鹿和梅花鹿中基因型分布表现出显著性差异(P<0.05);另外1个SNP位点(SNP5)中T等位基因在梅花鹿的基因频率为0.15,而在马鹿中的基因频率为1,且这个SNP位点在梅花鹿和马鹿中基因型分布差异显著(P<0.05),所以这2个位点仍然可以作为马鹿的特异性SNPs位点。研究结果说明了GBS测序筛选出的马鹿特异性SNPs可以作为鉴定的分子标记,对梅花鹿、马鹿及其杂交后代的鉴别奠定了理论基础。

关键词: 马鹿; 特异性SNP; Sanger测序; 验证

Abstract: The purpose of this study was to verify the accuracy of specific SNPs of red deer based on genotyping sequencing (GBS) technology,and provide a reliable basis for the identification of sika deer,red deer,and their hybrid offspring.Thirty specific SNPs of red deer were randomly selected,based on the sequences of 200 bp each before and after the SNPs,Primer Premier 6.0 software was used to design specific primers,and the randomly selected DNA of the validation samples was used as a template for amplification,PCR was performed,and the amplified products were sequenced in one generation.The sequences obtained by sequencing were analyzed by Mega 6.0 software,and the genotypes of each SNP site in different validation populations were observed.The results showed that 28 out of 30 specific loci were consistent with the results of the previous study,and the gene frequency of the G allele at one of SNPs (SNP3) was 0.05 in sika deer,while the gene frequency of the G allele was 1 in red deer.The loci showed significant differences in genotype distribution between red deer and sika deer (P<0.05).The gene frequency of the T allele in the other SNP (SNP5) was 0.15 in sika deer,while the gene frequency of the T allele was 1 in red deer,and the genotype distribution of this SNP in sika deer and red deer was significantly different (P<0.05).So these two loci could still be used as specific SNPs of red deer.The results showed that the specific SNPs of red deer selected by GBS sequencing could be used as molecular markers for identification,and laid a theoretical foundation for the identification of sika deer,red deer and their hybrid offspring.

Key words: red; deer:specific; SNPs:Sanger; sequencing:validation

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