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中国农学通报

中国农学通报 ›› 2019, Vol. 35 ›› Issue (23): 6-12.doi: 10.11924/j.issn.1000-6850.casb18030155

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

玉米地方品种沃日黄与其选系重组改良后代表型性状综合分析

杨麟, 冷益丰, 张彪, 杨俊品, 陈洁, 谭君, 唐海涛, 邓路长, 康继伟, 李燕, 何文铸   

  1. 四川省农业科学院作物研究所
  • 收稿日期:2018-03-30 修回日期:2018-05-15 接受日期:2018-06-22 出版日期:2019-08-13 发布日期:2019-08-13
  • 通讯作者: 何文铸
  • 基金资助:
    国家重点研发计划项目“丘陵旱地带状套作玉米丰产增效技术研究与模式构建”(2017YFD0301708)，“玉米杂种优势利用技术与强优势杂 交种创制”(2016YFD010206-5)；四川省科技支撑计划项目“突破性玉米育种材料与方法创新”(2016NYZ029)；四川省财政创新能力提升工程专项资 金项目“种质资源创新和突破性新品种培育工程：突破性高产优质抗逆玉米新品种选育”(2016ZYPZ-014)；四川省农业科学院科技成果中试熟化与示 范转化项目“粮饲通用型玉米新品种培育和高产示范”(CGZH2018FP35)，“现代农业产业技术体系四川省玉米创新团队项目”(SCCXTD2009-2-2)。

Phenotypic Traits: Inbred Lines from Maize Landrace‘Worihuang’and Its Derivatives

  • Received:2018-03-30 Revised:2018-05-15 Accepted:2018-06-22 Online:2019-08-13 Published:2019-08-13

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摘要： 为评价玉米地方品种与其选系重组再选系方法的效率，探索优异地方种质资源发掘、利用新途径，采用表型分析、主成分分析、相关性分析与聚类分析，对‘沃30’与8个重组系进行综合评价，研究地方品种选系材料的综合评价指标和方法。结果表明：（1）‘沃30’与重组系间存在丰富的遗传变异，各性状变异系数为1.49%-46.79%，‘A3’和‘A4’的多个性状优于‘沃30’；（2）综合评价分析表明，3个主成分累计贡献率为90.46%，供试材料表型性状综合得分为-1.414-2.550，‘A4’、‘A3’和‘A1’综合得分高于‘沃30’，散粉期等6个性状与综合得分显著或极显著相关；（3）供试材料间遗传距离为0.78-2.045，当阈值为1.414，可分为三大类。通过地方品种‘沃日黄’优株与其选系重组再选系的方法能够改良目标性状，利于进一步发掘与利用地方品种中的优良基因。

关键词: 青岛降雪, 青岛降雪, 时空特征, 环流特征, 物理量特征, 合成分析, 小波分析

Abstract: For evaluating the efficiency of the method that reselecting from the recombination of maize landraces and their derivatives and investigating new ways to utilize elite landrace resources, we conducted comprehensive evaluations on ''Wo 30'' and 8 recombinant inbred lines based on phenotypic analysis, principal component analysis, correlation analysis and cluster analysis to study the comprehensive evaluation index and method of inbred lines developed from landraces. The results showed that (1) there were abundant genetic variations between ''Wo 30'' and these recombinant inbred lines, the coefficient of variation of each trait was 1.49%-46.79%, and the multiple characters of ''A3'' and ''A4'' were superior to that of ''Wo 30''. (2) the comprehensive evaluation analysis showed that the cumulative contribution rate of 3 principal components was 90.46%, the comprehensive score of the phenotypic traits of the tested materials was varied from -1.414 to 2.550, and the overall scores of ''A4'', ''A3'' and ''A1'' were higher than that of ''Wo 30''. Six phenotypic traits such as the pollinating stage were significantly or highly significantly correlated with the comprehensive score. (3) the genetic distance of the tested materials were varied from 0.78 to 2.045. Three groups were classified when the threshold was selected as 1.414. Overall, the target traits were improved by reselecting from the recombination of ''Worihuang'' and its derivatives, which was beneficial to further explore and utilize the elite genes in the local varieties.

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