QTLs for Waterlogging Tolerance at Germination and Seedling Stages in Population of Recombinant Inbred Lines Derived from a Cross Between Synthetic and Cultivated Wheat Genotypes

YU Ma; MAO Shuang-lin; CHEN Guo-yue; LIU Ya-xi; LI Wei; WEI Yu-ming; LIU Chun-ji; ZHENG You-liang

首页> 中文期刊> 《农业科学学报（英文版）》 >QTLs for Waterlogging Tolerance at Germination and Seedling Stages in Population of Recombinant Inbred Lines Derived from a Cross Between Synthetic and Cultivated Wheat Genotypes

QTLs for Waterlogging Tolerance at Germination and Seedling Stages in Population of Recombinant Inbred Lines Derived from a Cross Between Synthetic and Cultivated Wheat Genotypes

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Waterlogging is a widespread limiting factor for wheat production throughout the world. To identify quantitative trait loci (QTLs) associated with waterlogging tolerance at early stages of growth, survival rate (SR), germination rate index (GRI), leaf chlorophyll content index (CCI), root length index (RLI), plant height index (PHI), root dry weight index (RDWI), shoot dry weight index (SDWI), and total dry weight index (DWI) were assessed using the International Triticeae Mapping Initiative (ITMI) population W7984/Opata85. Signiifcant and positive correlations were detected for all traits in this population except RLI. A total of 32 QTLs were associated with waterlogging tolerance on all chromosomes except 3A, 3D, 4B, 5A, 5D, 6A, and 6D. Some of the QTLs explained large proportions of the phenotypic variance. One of these is the QTL for GRI on 7A, which explained 23.92% of the phenotypic variation. Of them, 22 alleles from the synthetic hexaploid wheat W7984 contributed positively. These results suggested that synthetic hexaploid wheat W7984 is an important genetic resource for waterlogging tolerance in wheat. These alleles conferring waterlogging tolerance at early stages of growth in wheat could be utilized in wheat breeding for improving waterlogging tolerance.

著录项

来源
《农业科学学报（英文版）》 |2014年第1期|31-39|共9页
作者
YU Ma; MAO Shuang-lin; CHEN Guo-yue; LIU Ya-xi; LI Wei; WEI Yu-ming; LIU Chun-ji; ZHENG You-liang;
展开▼
作者单位

Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China;

Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China;

Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China;

Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China;

Agronomy College, Sichuan Agricultural University, Chengdu 611130, P.R.China;

Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China;

CSIR0 Plant Industry, St Lucia QLD 4067, Australia;

Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China;

展开▼
原文格式 PDF
正文语种 eng
中图分类
关键词

QTLs for Waterlogging Tolerance at Germination and Seedling Stages in Population of Recombinant Inbred Lines Derived from a Cross Between Synthetic and Cultivated Wheat Genotypes

摘要

著录项

相关主题

期刊订阅