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首页> 外文期刊>International Journal of Plant Breeding and Genetics >Quantitative Trait Loci Analysis for Plant Morphological Traits in Rice (Oryza sativa L.) Under Different Environments
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Quantitative Trait Loci Analysis for Plant Morphological Traits in Rice (Oryza sativa L.) Under Different Environments

机译：不同环境下水稻（Oryza sativa L.）植物形态性状的数量性状位点分析

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摘要

A Recombinant Inbred (RI) population derived from the cross of Asominori (Japonica)xTR24 (Indica), grown in Japan and China, were employed to detect Quantitative Trait Loci (QTLs) for seven morphological traits, viz., Flag-Leaf Length (FLL), width (FLW) and area (FLA), the Second Leaf Length (SLL), width (SLW) and area (SLA), Plant Height (PH), which mainly represent morphological characteristics of rice plants. Resultantly, approximately normal distributions and transgressive segregations of seven traits studied were observed, showing that all of these traits were quantitatively inherited and there existed positive correlations among them. Furthermore, a total of 29 QTLs associated with seven morphological traits were detected, which were mainly distributed on chromosome 1(11 QTLs), 5 (5 QTLs) and 6 (5 QTLs). Among them, only 4 QTLs (qSLL-1 for SLL, qFLA-5 for FLA and both qPH-1 and gPH-2 for PH) were commonly expressed in two countries and QTL number varied with growth environment. Those resultsof this study will supply useful information for improving morphology of rice plants in Asian countries.
机译：在日本和中国生长的Asominori（Japonica）xTR24（Indica）杂交得到的重组近交（RI）种群用于检测7个形态特征的定量性状位点（QTL），即旗叶长度（ FLL），宽度（FLW）和面积（FLA），第二叶片长度（SLL），宽度（SLW）和面积（SLA），植物高度（PH），它们主要代表水稻植物的形态特征。结果，观察到七个特质的近似正态分布和海马分离，表明所有这些特质都是定量遗传的，并且它们之间存在正相关。此外，共检出29个与7个形态性状相关的QTL，主要分布在1号染色体（11个QTL），5个（5个QTL）和6个（5个QTL）上。其中，只有4个QTL（SLL的qSLL-1，FLA的qFLA-5和PH的qPH-1和gPH-2）共同表达，并且QTL的数量随生长环境而变化。这项研究的结果将为改善亚洲国家水稻植株的形态提供有用的信息。

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