Oryza sativa L.), quantitative trait loci (QTL) were mapped using recombinant inbred lines (RILs) that were derived from a cross between tolerant ‘XieqingzaoB’ (XB) and susceptible ‘Zhonghui9308’. Six TPDE-related traits, including the root length, root dry weight, tillers number, shoot dry weight, total plant dry weight and root-to-shoot ratio, were evaluated for QTL analysis during both the tillering and heading stages. A correlation analysis showed that most of the traits were correlated with each other. Twenty-one additive QTL were detected and jointly explained between 10–49% of the trait variance, tending to cluster on chromosomes 4, 6, 10 and 11. Three QTL, qTPDE4XB, qTPDE10XB and qTPDE11.3XB, were validated by the phenotypic evaluation using near isogenic lines (NILs, BC4F3) during the seedling stage. qTPDE4XB showed the most stable tolerance against Pi deficiency. These QTL will enrich the genetic resources and accelerate hybrid rice breeding against Pi deficiency." />
Abstract
Copyright © 2003-2019 China National Rice Research Institute. 中国水稻研究所 版权所有
地址:杭州市富阳区水稻所路28号(邮政编码:311401)电话:+86 571 63370590
杭州市拱墅区体育场路359号(邮政编码:310006)
京ICP备10039560号-5 浙公网安备33010302000429号
技术支持:中国农业科学院农业信息研究所