华北农学报 ›› 2015, Vol. 30 ›› Issue (2): 183-190. doi: 10.7668/hbnxb.2015.02.032

所属专题: 油料作物

• 论文 • 上一篇    下一篇

栽培花生品种间SSR标记多态性及特征分析

侯名语1,2, 杨鑫雷1, 郭慧敏1, 穆国俊1, 刘立峰1   

  1. 1. 华北作物种质资源教育部重点实验室, 河北省作物种质资源重点实验室, 河北 保定 071001;
    2. 河北农业大学 生命科学学院, 河北 保定 071001
  • 收稿日期:2014-12-09 出版日期:2015-04-28
  • 通讯作者: 刘立峰(1966-),男,河北宁晋人,教授,博士,主要从事花生基因组学与分子育种研究。
  • 作者简介:侯名语(1976-),女,河北徐水人,实验师,在读博士,主要从事花生遗传育种研究。
  • 基金资助:
    现代农业产业技术体系建设专项基金项目(CARS-14);河北科技支撑计划项目(11220109D);河北省高等学校科学研究重点项目(ZD2010136)

Identification and Characterization of Polymorphic SSR in Cultivated Peanut

HOU Ming-yu1,2, YANG Xin-lei1, GUO Hui-min1, MU Guo-jun1, LIU Li-feng1   

  1. 1. Laboratory of Crop Germplasm Resources for Northern China, Ministry of Education, Key Laboratory of Crop Germplasm Resources of Hebei Province, Baoding 071001, China;
    2. College of Life Sciences, Agricultural University of Hebei, Baoding 071001, China
  • Received:2014-12-09 Published:2015-04-28

摘要: 通过筛选栽培花生间具有多态性的SSR,分析总结多态性SSR的特征,旨在选择性利用SSR标记,推动栽培种花生遗传图谱构建、相关农艺性状的QTL定位和分子标记辅助育种进程。以秦皇岛光秧、石腰豆、印度窄叶、抗019、四粒红和黑花生6个不同植物学类型的中国栽培种花生为材料,选用不同设计类型的1 523个SSR标记筛选品种间多态性SSR,并对其扩增片段长度、重复基序、重复次数等进行分析。结果表明,1 523个标记中,筛选获得43对多态性SSR标记,产生123个多态性标记位点,多态性标记数占2.8%。43对多态性SSR标记中,以ARS× ×的多态性最高,在6个品种中多态率达6.8%。统计各种质间具多态性的SSR,其中石腰豆与四粒红间多态性最高,共筛选到56个多态性标记位点;秦皇岛光秧与印度窄叶间多态率最低,筛选到21个多态性标记位点。在123个多态性SSR标记位点中,80%多态性SSR位点片段长度为150~300 bp;18.8%多态标记的重复基序为GA,其次为AG、TC,分别占12.5%,12.5%;多态标记中二核苷酸、三核苷酸重复基序的重复次数在15次以上的占60%。

关键词: 花生, SSR, 多态性, 特征

Abstract: Through screening polymorphic SSRs and analyzing its characteristic, it is anticipated that the identified set of highly informative markers should be very useful to initiate constructing SSR genetic linkage map, QTL research, and molecular assistant breeding studies in cultivated groundnut.A total of 1 523 markers designed by different methods were used to screen for polymorphism in 6 peanut accessions with different botanical types, and the characteristics of polymorphic SSR were analyzed in the aspect of amplified fragment length, repeat motif, and repeat number.The result showed that only 43(2.8%) pairs of markers with 123 polymorphic loci expressed polymorphism.Among the 43 polymorphic SSRs, ARS× ×showed the highest polymorphic rate(6.8%).For the combination examined, Shiyaodou and Silihong were the highest with polymorphic loci of 56, while Qinhuangdaoguangyang and Yinduzhaiye were the lowest with polymorphic loci of 21.Fragment length of 80% polymorphic loci were between 150 bp and 300 bp;GA motif(18.8%) was the most abundant, followed by AG(12.5%)and TC(12.5%);the repeat number of 60% of di-nucleotide and tri-nucleotide motif was over 15.

Key words: Peanut, SSR, Polymorphism, Characteristic

中图分类号: 

引用本文

侯名语, 杨鑫雷, 郭慧敏, 穆国俊, 刘立峰. 栽培花生品种间SSR标记多态性及特征分析[J]. 华北农学报, 2015, 30(2): 183-190. doi: 10.7668/hbnxb.2015.02.032.

HOU Ming-yu, YANG Xin-lei, GUO Hui-min, MU Guo-jun, LIU Li-feng. Identification and Characterization of Polymorphic SSR in Cultivated Peanut[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(2): 183-190. doi: 10.7668/hbnxb.2015.02.032.

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