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中国农学通报 ›› 2018, Vol. 34 ›› Issue (17): 56-61.doi: 10.11924/j.issn.1000-6850.casb17090062

所属专题: 生物技术 园艺

• 林学 园艺 园林 • 上一篇    下一篇

辣椒全基因组SSR标记多态性的筛选及应用

李 艳,赵红星,王 勇,姜 俊,魏小春,田士林   

  1. 驻马店市农业科学院,驻马店市农业科学院,驻马店市农业科学院,驻马店市农业科学院,河南省农业科学院园艺研究所,黄淮学院
  • 收稿日期:2017-09-11 修回日期:2017-11-17 接受日期:2017-12-25 出版日期:2018-06-20 发布日期:2018-06-20
  • 通讯作者: 姜 俊
  • 基金资助:
    河南省基础与前沿技术研究计划项目“辣椒核心种质资源库的构建及应用”(162300410155);河南省大宗蔬菜产业技术体系——驻马店综 合试验站(Z2010-03-06);河南省创新型科技团队“河南省辣椒核心种质创制及分子育种创新团队”(C20150054)。

Screening and Application of SSR Markers’Polymorphism of Capsicum Whole Genome

  • Received:2017-09-11 Revised:2017-11-17 Accepted:2017-12-25 Online:2018-06-20 Published:2018-06-20

摘要: 辣椒种质资源遗传多样性丰富,育种的潜力较大,本研究利用基于辣椒全基因组编码区序列设计的152对SSR标记引物,4份不同的辣椒经垂直电泳对152对SSR引物进行筛选,从中筛选出条带清晰、稳定性好的14对SSR多态性引物。并利用其对不同的26份辣椒种质资源进行遗传多样性分析。结果表明:14对SSR引物共扩增出39个多态性条带,平均每对引物扩增出2.79个位点,说明SSR引物在辣椒遗传分析中具有较高的实用性。利用Phylip软件将26份辣椒资源材料进行聚类分析,结果将不同的26份辣椒聚为7类,基本与辣椒种类相符。为后续辣辣椒种质资源的研究及合理利用奠定了理论基础。

关键词: 大豆, 大豆, 活性氧, 水分, SOD, MDA

Abstract: The paper aims to further understand the genetic diversity of pepper germplasm resources. 152 pairs of SSR primers were designed based on the whole genome coding region sequence of pepper. 4 different species of Capsicum were used to screen 152 pairs of primers, to obtain clear bands, good stability of 14 SSR polymorphic primers. Then, the 14 pairs of SSR primers were used to analyze the genetic diversity of 26 accessions of pepper germplasm resources. The results showed that the 14 pairs of SSR primers amplified 39 polymorphic bands, with an average of 2.79 loci amplified by each pair of primers, which showed that the SSR primers had higher practicability in the genetic analysis of pepper. Phylip software was used to conduct the cluster analysis of the 26 accessions of pepper germplasm resources, and divided the accessions into seven categories, and the results were basically consistent with the source of pepper species. This study can lay a foundation for the study and rational utilization of genetic diversity of pepper germplasm resources.