欢迎访问《植物研究》杂志官方网站,今天是 分享到:

植物研究 ›› 2019, Vol. 39 ›› Issue (6): 947-954.doi: 10.7525/j.issn.1673-5102.2019.06.018

• 研究报告 • 上一篇    下一篇

基于全基因组重测序技术的‘红叶’杜仲SNP位点开发

杨赟1,2, 陈梦娇3, 杜庆鑫1, 朱景乐1, 杜红岩1, 杨绍彬1   

  1. 1. 国家林业和草原局泡桐研究开发中心, 经济林种质创新与利用国家林业和草原局重点实验室, 郑州 450003;
    2. 南京林业大学林学院, 南京 210000;
    3. 河南农业大学林学院, 郑州 450002
  • 收稿日期:2019-01-03 出版日期:2019-11-05 发布日期:2019-11-16
  • 通讯作者: 杨绍彬 E-mail:ysb1966327@yahoo.com.cn
  • 作者简介:杨赟(1995-),女,博士研究生,主要从事林木遗传育种研究。
  • 基金资助:
    中国林业科学研究院中央级公益性科研院所基本业务费专项资金(CAFYBB2014QA037)

SNP Sites Developed by Whole Genome Resequencing Analysis in Eucommia ulmoides ‘Hongye’

YANG Yun1,2, CHEN Meng-Jiao3, DU Qing-Xin1, ZHU Jing-Le1, DU Hong-Yan1, YANG Shao-Bin1   

  1. 1. Paulownia Research and Development Center of State Administration of Forestry and Grassland, Key Laboratory of Non-timber Forest Germplasm Enhancement&Utilization of State Forestry and Grassland Administraion, Zhengzhou 450003;
    2. Nanjing Forestry University, College of Forestry, Nanjing 210000;
    3. Henan Agricultural University, College of Forestry, Zhengzhou 450002
  • Received:2019-01-03 Online:2019-11-05 Published:2019-11-16
  • Supported by:
    Special Fund for Basic Business Expenses of the Central Level Public Welfare Research Institutes of the Chinese Academy of forestry(CAFYBB2014QA037)

摘要: 为了挖掘与‘红叶’杜仲(Eucommia ulmoides ‘Hongye’)红叶性状紧密联系的SNP位点,进一步揭示红叶性状的遗传基础和分子机理。以‘红叶’杜仲和普通绿叶杜仲‘小叶’杜仲(Eucommia ulmoides ‘Xiaoye’)为研究材料,进行覆盖深度约为10x的全基因组重测序。使用SnpEff软件预测变异位点对蛋白编码的影响,结合花色苷的代谢通路和关键酶基因,筛选与‘红叶’杜仲叶色形成相关的差异位点。利用Sanger测序二代测序筛选的SNP位点,分子标记验证群体是‘红叶’杜仲和‘小叶’杜仲。结果表明,‘红叶’杜仲测序产生Clean data为14.16 Gb,‘小叶’杜仲产生Clean data为14.29 Gb。在‘红叶’杜仲中注释到严重影响蛋白质功能的有1 516个SNP,中度影响的41 328个SNP,在‘小叶’杜仲中存在严重影响蛋白质功能的SNP为1 640个,中度影响功能的SNP为47 192个。测得26 722条基因中有228条基因是与花色苷或类黄酮合成相关的酶基因。经过筛选,确定了12个特异性的SNP位点,均属于外显子区域的错义突变。利用一代测序验证,根据SNP位置设计了7对引物,SNP准确率达到100%。

关键词: ‘红叶’杜仲, 全基因组重测序, 花色苷, SNP

Abstract: We studied the SNP locus and candidate genes closely related to the red leaf traits of Eucommia ulmoides ‘Hongye’ for further revealing the genetic basis and molecular mechanism of red leaf traits. We used E.ulmoides ‘Hongye’ and the common green leaf E.ulmoides to perform whole genome sequencing with a depth of about 10x. With resequencing data and by using SnpEff software we predicted the effect of mutation sites on protein coding, selected the differential sites associated with the formation of E.ulmoides ‘Hongye’ leaf color, which were related to anthocyanin metabolic pathways and key enzyme genes. For fine mapping, 14.16 Gb clean data were generated from genome re-sequencing of E.ulmoides ‘Hongye’ and 14.29 Gb of clean data was produced by E.ulmoides ‘Xiaoye’. There are 1 516 SNPs in the E.ulmoides ‘Hongye’ which have serious effects on protein function, and 41 328 moderately affected. There are 1 640 SNPs in the E.ulmoides ‘Xiaoye’ that seriously affect protein function, and 47 192 SNPs that moderately affect function. Of the 26 722 genes, 228 were found to be involved in the synthesis of anthocyanin or flavonoids. After screening, 12 specific SNP loci were identified, all of which belonged to missense mutations in the exon region. Using a generation of sequencing verification, 7 pairs of primers were designed based on the SNP position, and the SNP accuracy rate reached 100%.

Key words: Eucommia ulmoides ‘Hongye’, whole genome resequencing, anthocyanin, SNP

中图分类号: