QTL Analysis of Some Agronomic Traits in Rice Under Different Growing Environments

作     者：HAN Long-zhi QIAO Yong-li ZHANG San-yuan CAO Gui-lan YE Chang-rong XU Fu-rong DAI Lu-yuan YeJong-doo Koh Hee-jong 

作者机构：Institute of Crop Sciences Chinese Academy of Agricultural Sciences Beijing 100081 P.R.China School of Plant Science College of Agriculture and Life Science Seoul National University Seoul 151-921 Korea Institute of Rice Research Jilin Academy of Agricultural Sciences Gongzhuling 136100 P.R.China Institute of Biotechnology and Germplasm Research Yunnan Academy of Agricultural Sciences Kunming 650205 P.R.China National Crop Experiment Station Rural Development Administration Suwon 441-857 Korea 

出 版 物：《Agricultural Sciences in China》 (中国农业科学（英文版）)

年 卷 期：2006年第5卷第1期

页      面：15-22页

学科分类：0710[理学-生物学] 09[农学] 0901[农学-作物学] 0902[农学-园艺学] 

基　　金：supported by the National Natural Science Foundation of China(30070421) the 10th Five Year National Key Research Program(2004BA525B02) Cooperative Research Between China and Korea(2002-2004) 

主　　题：rice different growing environments agronomic traits QTLs 

摘      要：The culm length, panicle length, spikelets per panicle and panicle exsertion were evaluated by using F2：3 population including 200 lines derived from the cross of indica and japonica Milyang 23/Jileng 1 under five different environments of Beijing （natural normal growing environment）, Kunming （natural cold environment）, Gongzhuling of China （cold water irrigation） and Chuncheon of Korea （natural normal growing environment and cold water irrigation）, and QTLs of these traits were analyzed by using SSR markers. The results showed that 44 QTLs related to these agronomic traits were detected under five different growing environments, and these QTLs have been located on 11 chromosomes except chromosome 9. The QTLs for qCLla, qCL1b, qCL5a, qCL6b, qPLla, qPL3a, qPL6b, qPL6c, qPL7b, qSP8b, qSPlc, qSP11a, qSP12, and qPE1 have been detected under more than two growing environments, and those that were little affected by environments, were stable QTLs. Among them, qCLla, qCLlb, qPLla, qSPlc, and qPE1 explained 24.2-55.2%, 22.7-39.9%, 12.5-27.7%, 14.4-33.5%, and 26.6-28.7% of observed phynotypic variation, respectively, which were major genes mainly appearing as overdominance. These QTLs cause the increase in action to culm length, panicle length, spikelets per panicle, and panicle exsertion under cold environment, showing that these QTLs were correlated with cold tolerance.