Comparative study of QTLs for agronomic traits of rice (Oriza sativa L.) between salt stress and nonstress environment

被引：2

作者：

龚继明

郑先武

杜保兴

钱前

陈受宜

朱立煌

何平

机构：

来源：

Science in China(Series C:Life Sciences) | 2001年 / 01期

关键词：

rice (Oriza saliva L.); QTLs; salt stress; doubled haploid population; GxE interaction;

D O I：

暂无

中图分类号：

S511 [稻];

学科分类号：

0901 ;

摘要：

Genotype-by-environment interactions (GxE) are commonly observed for quantitative traits. In the present study, a doubled haploid (DH) population and its genetic linkage map were used to comparatively study QTLs in salt stress and nonstress environments. A total of 24 QTLs were detected for five agronomic traits, which were distributed on all the chromosomes except 9 and 11. Under the salt stress, nine (37.5%) QTLs were detected, including one for 1 000-grain weight (GW), two for heading date (HD), one for plant height (PH), two for grains per panicle (GPP), and three for effective tillers (ET), while in the nonstress environment, 17 QTLs (70.8%) were detected, including five for GW, six for HD, three for PH, two for GPP, and one for ET. Two QTLs (8.3%) were consistently detected in both environments. One was identified on chromosome 4 for HD and the other on Chr.6 for GPP. Furthermore, three regions carrying multiple QTLs were identified on chromosomes 1, 4 and 8 respectively. For example, on chromosome

引用

页码：73 / 82

页数：10

共 15 条

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