Abstract

Chlorate resistance is one of the reliable characters in Indica/Japonica classifica- tion. To understand the genetic basis of chlorate resistance is very important for revealing the evolutionary mechanism of Indica/Japonica dif- ferentiation. In this study, a doubled haploid (DH) population derived from anther culture of ZYQ8/JX17, a typical Indica and Japonica hybrid, was used as the genetic material to investigate chlorate sensitivity of the parents and DH lines. The quantitative trait loci (QTLs) of chlorate resistance were analyzed based on the molecular linkage map of this population. Total of 3 QTLs (qCHR-2, qCHR-8 and qCHR-10) for chlorate resistance were detected on chromosomes 2, 8 and 10, respectively. A

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