小麦F型雄性不育系和恢复系SSR指纹图谱构建及遗传差异分析
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  • 英文篇名:Genetic Difference Analysis and Construction of SSR Fingerprinting Database for F-Type Wheat Male Sterile Line and Restorer Lines
  • 作者:刘丽华 ; 苑少华 ; 冯树英 ; 庞斌双 ; 李宏博 ; 刘阳娜 ; 张立平 ; 赵昌平
  • 英文作者:Liu Lihua;Yuan Shaohua;Feng Shuying;Pang Binshuang;Li Hongbo;Liu Yangna;Zhang Liping;Zhao Changping;Beijing Engineering and Technique Research Center for Hybrid Wheat,Beijing Academy of Agriculture and Forestry Sciences,The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat;Blue and Red Hybrid Wheat Research Center;
  • 关键词:小麦 ; F型不育系 ; 恢复系 ; SSR标记 ; 指纹图谱 ; 遗传差异
  • 英文关键词:Wheat;;F-type male sterile line;;Restorer;;SSR markers;;Fingerprinting database;;Genetic difference
  • 中文刊名:ZWZZ
  • 英文刊名:Crops
  • 机构:北京市农林科学院杂交小麦工程技术研究中心/杂交小麦分子遗传北京市重点实验室;蓝红杂交小麦研究中心;
  • 出版日期:2017-12-04 09:43
  • 出版单位:作物杂志
  • 年:2017
  • 期:No.181
  • 基金:国家科技支撑计划课题(2013BAD04B01);; 北京市科技计划项目(D17110002517001);; 北京市农林科学院科技创新能力建设专项(KJCX20161502);北京市农林科学院青年基金(QNJJ201509)
  • 语种:中文;
  • 页:ZWZZ201706007
  • 页数:7
  • CN:06
  • ISSN:11-1808/S
  • 分类号:36-42
摘要
基于荧光毛细管电泳检测系统和SSR指纹数据库管理系统,采用21对SSR核心引物对小麦F型不育系和恢复系进行SSR指纹图谱构建和遗传差异分析,以保护其品种权,同时为杂交组合的选配提供参考。结果显示21对核心SSR引物在F型不育系和442个恢复系中共检测到214个等位变异,不同位点等位变异数的变幅为6~16,平均等位变异数为10.76个;平均多态性信息含量(PIC)与基因多样性分别为0.70和0.73,21对核心SSR引物的分辨率达100%;获得了每份材料独特的DNA指纹图谱报告,为品种权保护提供了技术支撑;恢复系间的遗传距离为0.014~0.952,平均遗传距离为0.723,遗传距离大于0.500的占95%,说明恢复系间遗传多样性比较丰富;不育系与恢复系材料间的遗传距离为0.300~0.952,平均遗传距离为0.681,遗传距离大于0.500的占93%,说明不育系材料与恢复系材料间遗传差异较大,可以从中选择遗传距离大的配制组合。
        In order to protect wheat variety and provide theoretical reference for the selection of hybrid wheat combinations, twenty-one core SSRs covering the entire wheat genome were used to construct fingerprinting database and analyze genetic difference for F-type wheat male sterile line and 442 restorer lines, based on fluorescence capillary electrophoresis detection platforms and SSR fingerprint database management system. Two hundred and fourteen allelic variations were detected with an average allele number of 10.76. The average of polymorphism information content(PIC) and gene diversity values were determined to be 0.70 and 0.73, respectively. The resolution of twentyone core SSR primers was 100%. The unique DNA fingerprinting of each material was obtained, which provided technical support for the protection of variety rights. The genetic distance between the restorer lines was 0.014-0.952 with an average allele number of 0.723, and the genetic distance greater than 0.500 reached 95%, which indicated that the genetic diversity among the restorer lines was more abundant. The genetic distance between sterile line and restorer lines was 0.300-0.952, with an average allele number of 0.681, and the restorer lines accounted for 93% with genetic distance greater than 0.500, which showed that there was a great genetic difference between sterile line and restorer lines and it was beneficial to select the restorer line and sterile line configuration with large genetic distance.
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