华北农学报 ›› 2014, Vol. 29 ›› Issue (5): 119-124. doi: 10.7668/hbnxb.2014.05.020

所属专题: 小麦

• 论文 • 上一篇    下一篇

不同抗蚜性小麦品种(系)的遗传多样性SSR标记分析

许兰杰, 侯起岭, 侯春雨, 张婷, 张小华, 倪中福, 梁荣奇   

  1. 中国农业大学 农学与生物技术学院, 农业生物技术国家重点实验室, 北京 100193
  • 收稿日期:2014-08-01 出版日期:2014-10-28
  • 通讯作者: 梁荣奇(1970-), 男, 山东日照人, 副教授, 博士, 主要从事小麦遗传育种研究。
  • 作者简介:许兰杰(1982-), 女, 河南漯河人, 在读博士, 主要从事小麦抗虫育种研究。
  • 基金资助:
    转基因生物新品种培育重大专项(2008ZX08002-001;20011ZX08002-001)

Genetic Diversity Analysis of Wheat Varieties with Different Aphids-resistant by Simple Sequence Repeat(SSR) Markers

XU Lan-jie, HOU Qi-ling, HOU Chun-yu, ZHANG Ting, ZHANG Xiao-hua, NI Zhong-fu, LIANG Rong-qi   

  1. College of Agriculture and Biotechnology, China Agricultural University, State Key Laboratory Agro-biotechnology, Beijing 100193, China
  • Received:2014-08-01 Published:2014-10-28

摘要: 为了揭示小麦抗蚜品种(系)的遗传多样性,在田间蚜虫圃对150份小麦品种(系)孕穗期和灌浆期蚜量比值进行2年对比的基础上,选取抗性结果较为一致的材料,利用筛选的54对具有多态性的SSR标记检测了43个不同抗蚜水平小麦品种(系)的遗传多态性。结果表明,54对SSR标记在这43份不同抗蚜水平小麦品种(系)中检测到365个等位变异,每个引物检测到2~18个等位变异,平均为6.7个;从每条谱带在所有材料中出现的频率来看,变异范围为2.3%~97.7%;多态性信息量为0.05~0.91,平均为0.65;43个小麦品种间的相对遗传距离为0.30~0.90,平均为0.52;SSR标记聚类分析在相对遗传距离为0.55处将43个不同抗蚜水平小麦品种(系)分为五大类群。选育和推广抗虫品种时尽可能选择聚类图中亲缘关系较远的材料;抗蚜品种京冬6号单独聚为一类,与其余品种亲缘关系较远,可作为新的抗源用于抗蚜育种。因此,用SSR分子标记分析不同抗蚜水平小麦品种(系)间的遗传多样性和亲缘关系,可以为培育和推广抗蚜小麦品种提供参考。

关键词: 小麦, 麦蚜, SSR, 遗传多样性

Abstract: In order to explore the genetic diversity of wheat varieties with different aphid-resistant degrees,and then offer the reference for breeding new aphid-resistant cultivars,43 wheat varieties/lines with different aphid-resistant degrees,based on a two-year field appraisal results for aphid index by nature aphid populations,were studied by Simple sequence repeat(SSR)markers.The results showed that fifty-four markers were screened and a total of 365 allelic variants were detected in these 43 varieties/lines,ranging from 2 to 18 alleles per marker with an average of 6.7. The PIC(Polymorphism information contents)for each polymorphic primer varied from 0.05-0.91,with an average of 0.65.The mean genetic distance(GD)among 43 varieties was 0.52,varying from 0.30-0.90.Based on the 0.55 of GD 43 varieties were clustered into five groups.Resistant insect variety Jingdong 6 was a group by oneself.There was a further genetic relationship between Jingdong 6 and other varieties,and so the Jingdong 6 might be used as a resistant insect parent.Therefore,SSR analysis could reliable determine genetic relationships within a diverse array of wheat varieties and effectively provide the data for selecting parents for breeding programme.

Key words: Wheat, Aphid, Simple sequence repeats(SSR), Genetic diversity

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引用本文

许兰杰, 侯起岭, 侯春雨, 张婷, 张小华, 倪中福, 梁荣奇. 不同抗蚜性小麦品种(系)的遗传多样性SSR标记分析[J]. 华北农学报, 2014, 29(5): 119-124. doi: 10.7668/hbnxb.2014.05.020.

XU Lan-jie, HOU Qi-ling, HOU Chun-yu, ZHANG Ting, ZHANG Xiao-hua, NI Zhong-fu, LIANG Rong-qi. Genetic Diversity Analysis of Wheat Varieties with Different Aphids-resistant by Simple Sequence Repeat(SSR) Markers[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(5): 119-124. doi: 10.7668/hbnxb.2014.05.020.

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