欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (28): 255-263.doi: 10.11924/j.issn.1000-6850.2014-1143

所属专题： 小麦

• • 上一篇    下一篇

2007—2008年度冀鲁豫川四省小麦区试品种（系） 遗传多样性和抗条锈性分析

王步云,冯 晶,蔺瑞明,王凤涛,陈万权,徐世昌   

  1. 中国农业科学院植物保护研究所,,,,,
  • 收稿日期:2014-04-19 修回日期:2014-04-19 接受日期:2014-05-19 出版日期:2014-10-15 发布日期:2014-10-15
  • 通讯作者: 王步云
  • 基金资助:
    国家重点基础研究发展计划“小麦重要病原真菌毒性变异的生物学基础”(2013CB127700)；国家自然科学基金“小麦品种对条锈菌持久抗 病性遗传组分及机制研究”(31261140370)；“小麦地方品种抗条锈病温敏基因的发掘及抗病机制的研究”(31272033)

Genetic Diversity and Stripe Rust Resistance of Wheat Regional Trial Cultivars in Hebei, Shandong, Henan and Sichuan in 2007-2008

  • Received:2014-04-19 Revised:2014-04-19 Accepted:2014-05-19 Online:2014-10-15 Published:2014-10-15

摘要： 为了解2007—2008 年度河北、河南、山东和四川四省小麦区试品种（系）的遗传多样性和抗条锈性，采用亲缘系数系统分析了参试的75 个小麦品种（系）的遗传多样性，并接种条锈菌混合菌系（CYR33、CYR32、CYR31、CYR30、CYR29、CYR17、Su-1 和V26）进行抗条锈性鉴定与评价。结果表明，在供试品种（系）的2775 个组合中，284 个组合存在遗传相似性，所有供试品种（系）的COP值在0.0000~0.5000，亲缘系数总和为216.4531。通过对COP值聚类分析，将供试材料分为10 大类；河北、河南、山东3 省参试品种（系）间遗传相似性较高，对小麦条锈病抗性相对较差，四川参试品种（系）遗传相似性较低，对小麦条锈病的抗性较好。从参试品种（系）系谱看，利用前一个时期选育的品种作亲本，特别是主要推广品种‘豫麦2 号’作为亲本的利用率较高是河南省参试品种（系）遗传相似性较高的重要原因；四川省参试品种（系）遗传多样性相对较高，抗条锈性相对较好，主要由于该省广泛利用了当地和其他地区的种质资源。因此，不断发掘小麦新的种质资源，并提高其利用水平，是当前高产稳产新品种选育的当务之急。

关键词: 研究展望, 研究展望

Abstract: In order to investigate the genetic diversity and resistance to wheat stripe rust of the regional trial wheat cultivars in Hebei, Shandong, Henan and Sichuan in 2007-2008, the pedigree information of 75 regional cultivars was traced and the coefficient of parentage (COP) between the parents and cross combinations was calculated. The cluster analysis was conducted based on the COP value. 75 regional cultivars were inoculated with mixed races of Puccinia striiformis. Among 284 of the 2775 combinations, the range of COP value of all cultivars was 0.0000 to 0.5000 and the sum of COP value was 216.4531; cluster analysis suggested that 75 cultivars could be divided into 10 groups. Yumai 2 and its derived varieties were mainly used as parents in most of regional trial cultivars, which maybe the main reason of the highest similarity in Henan cultivars. While local and other districts resources were mainly used in Sichuan, the similarity was the lowest and the level of stripe rust resistance was the highest, relatively. So it is important to enhance the utilization of novel wheat with distant relationship. It can improve the genetic diversity of wheat cultivars and create more excellent germplasm.