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高粱f6代群体分蘖数的qtl定位

DOI: 10.3969/j.issn.1000-2006.2013.02.010, PP. 55-58

Keywords: 高粱,分蘖数,微卫星重复序列,数量性状基因座

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Abstract:

分蘖数是高粱重要的农艺性状之一。笔者通过微卫星重复序列(simplesequencerepeat,ssr)分子标记,以t70×p607杂交得到的f6代重组自交系(recombinantinbredlines,ril)群体构建遗传连锁图,运用复合区间作图法(compositeintervalmapping,cim),对分蘖数进行数量性状基因座(quantitativetraitlocus,qtl)分析,在第1、2、4、5和6号染色体上检测到7个与分蘖数相关的qtl,解释性状表型变异在1%~13%之间,所得到的qtl全为超显性。

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