植物营养与肥料学报2001，Vol.7Issue(2)：159-165,7.
水稻吸氮能力与氮素利用率的QTLs及其基因效应分析
QTLs underlying rice root to uptake NH4-N and NO3-N and rice N use efficiency at seedling stage
摘要
Abstract
A molec ular marker linkage map of F2 population consisting of104 RFLP markers was em pl oyed to identify the quantitative trait loci (QTLs), which control the abilities of rice root to uptake NH4-N and NO3-N and the N use efficiency at seed ling stage in a hydroponic experiment. Two QTLs linked with ability to uptake N H4-N were detected. One of them located on chromosome 2 showed additive and p a rtial dominant gene effects and another on chromosome 5 showed additive and domi nant gene effects. Two QTLs associated with ability to uptake NO3-N were id entified. One of them located on chromosome 5 and another on chromosome 6 both s howed dominant gene effects. One QTL located on chromosome 12 was found to unde r lying N use efficiency, which showed significant additive and dominant gene effe cts. Furthermore, significant difference was found between means of two parenta l classes at the marker RG91 on chromosome 4 in the ability of root to uptake NH4-N by t test.关键词
氮/分子标记/数量性状座位（QTL）/水稻Key words
nitrogen/molecular marker/QTL/rice分类
农业科技引用本文复制引用
方萍,陶勤南,吴平..水稻吸氮能力与氮素利用率的QTLs及其基因效应分析[J].植物营养与肥料学报,2001,7(2):159-165,7.基金项目
浙江省自然科学基金项目（396291）资助。 （）
