渝棉1号优质纤维QTL的标记与定位

被引：25

作者：

王娟

郭旺珍

张天真

机构：

[1] 南京农业大学作物遗传与种质创新国家重点实验室

来源：

作物学报 | 2007年 / 12期

基金：

国家高技术研究发展计划(863计划);

关键词：

陆地棉; 纤维品质; QTLs; 分子标记;

D O I：

暂无

中图分类号：

S562 [棉];

学科分类号：

0901 ;

摘要：

利用陆地棉遗传标准系TM-1和优质品种渝棉1号组建了（TM-1×渝棉1号）F2和F2:3分离群体。通过5 544对SSR引物对亲本进行筛选,获得178个多态性标记,用其中138个构建了总长为959.7 cM的遗传图谱,覆盖棉花基因组的19%。应用复合区间作图法分析了该组合的F2单株和F2:3家系纤维品质性状,共检测到12个纤维品质数量性状基因座（QTL）,包括1个纤维长度的、4个纤维强度的、3个马克隆值的、3个整齐度的和1个伸长率的,分别解释各性状表型变异的6.1%、5.31%14.62%、7.88%19.17%、7.4%11.71%和8.26%。研究还发现Chr.23和Chr.24是优质纤维QTLs的富集区。

引用

页码：1915 / 1921

页数：7

共 21 条

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