水稻QTL图位克隆的特征分析

被引:14
作者
姜树坤
徐正进
陈温福
机构
[1] 沈阳农业大学,农业部作物生理生态遗传育种重点开放实验室,辽宁省北方粳稻育种重点开放实验室
关键词
水稻; 数量性状位点(QTL); 图位克隆; 特征;
D O I
暂无
中图分类号
S511 [稻];
学科分类号
0901 ;
摘要
图位克隆作为基因克隆的最有效手段,在水稻QTL克隆方面取得了很大的进展。文章通过分析近年来关于水稻QTL图位克隆的15个成功案例,总结了水稻QTL图位克隆的几个重要特征:(1)亲本杂交类型为种间或亚种间杂交,双亲的目标性状差异显著;(2)目标QTL为主效,一般能解释大部分的表型变异;(3)物理图距一般小于40kb;(4)初级定位结果准确,精细定位群体大于6000(隐性群体不小于1500)单株。文章还对QTL图位克隆的难点及解决方法进行了有益的探讨。
引用
收藏
页码:1121 / 1126
页数:6
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