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中国农学通报 ›› 2015, Vol. 31 ›› Issue (27): 63-68.doi: 10.11924/j.issn.1000-6850.casb15060148

所属专题: 玉米

• 农学 农业基础科学 • 上一篇    下一篇

玉米杂交种及其农艺性状的系统聚类分析

刘建新,李清超,文琼,马俊,王嵩,吴瑞,田井平   

  1. 毕节市农业科学研究所,毕节市农业科学研究所,毕节市农业科学研究所,毕节市农业科学研究所,毕节市农业科学研究所,毕节市农业科学研究所,毕节市农业科学研究所
  • 收稿日期:2015-06-30 修回日期:2015-07-20 接受日期:2015-08-24 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 李清超
  • 基金资助:
    贵州省科学技术基金项目 “黔西北玉米不同种质单倍体诱导及二倍化方法研究” (黔科合 J字[2013]2002号); 贵州省科学技术基金重点项目 “基于两个相关 RIL群体的玉米抗穗粒腐病 QTL定位” (黔科合 JZ字[2014]2001号); 毕节市农业攻关项目 “玉米抗穗粒腐病 MAS聚合育种研究”(毕科合字[2013]19号)。

Systematic clustering analysis of Maize Hybrids and their agronomic characters

  • Received:2015-06-30 Revised:2015-07-20 Accepted:2015-08-24 Online:2015-09-23 Published:2015-09-23

摘要: 为了研究玉米杂交种间的遗传差异以及性状间的相互关系。以 11个玉米品种的 13个农艺性状为依据, 采用系统聚类分析法计算其品种间的遗传距离及性状间的相关系数。结果表明: 11个品种共划分为 4 个类群, Ⅰ类为 QIV9、 QIV10、 QIV5、 QIV6, Ⅱ类为 QIV1、 QIV2、 QIV4, Ⅲ类为 QIV3、 QIV11、QIV7, Ⅳ类为 QIV8; 13个性状进行变量聚类分析, 被划分为 4类, 穗重、 单穗粒重、 产量、 穗行数和秃尖长聚为一类, 穗位高、 行粒数、 含水量、 轴重和穗粗聚为第二类, 穗长和百粒重聚为第三类, 株高自为一类。明确了品种间的关系亲疏以及性状间的相互关系, 可为玉米杂交种的选育及开发利用提供科学依据。

关键词: 海南地区, 海南地区, 气候变化, 突变分析

Abstract: The aim was to study the relationship among maize agronomic traits and research the genetic differences in maize hybrids. The genetic distance and correlation coefficient were calculated by using the systematic cluster analysis method based on 13 agronomic traits of 11 maize varieties. The results showed that the 11 varieties were divided into four groups, and the first group included QIV9, QIV10, QIV5 and QIV6; the second included QIV1, QIV2 and QIV4; the third included QIV3, QIV11 and QIV7; the fourth included QIV8. The 13 agronomic traits were divided into 4 groups by variable cluster analysis. Ear weight, net weight per ear, yield, ear row number and bare tip length were in the first group; ear height, row grain number, water content, axle weight and ear diameter were in the second group; ear length and hundred-grain weight were in the third group; the plant height belonged to the last group. This study defined the relationship of maize traits and varieties, and provided scientific basis for the breeding and development of maize hybrid.