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不同供水条件下水稻叶绿素含量的QTL分析
引用本文:沈波,庄杰云,樊叶杨,蒋靓,郑康乐.不同供水条件下水稻叶绿素含量的QTL分析[J].浙江大学学报(农业与生命科学版),2007,33(4):400-406.
作者姓名:沈波  庄杰云  樊叶杨  蒋靓  郑康乐
作者单位:1. 中国水稻研究所,国家水稻改良中心,水稻生物学国家重点实验室,浙江,杭州,310006;杭州师范大学,生命与环境科学学院,浙江,杭州,310036
2. 中国水稻研究所,国家水稻改良中心,水稻生物学国家重点实验室,浙江,杭州,310006
3. 杭州师范大学,生命与环境科学学院,浙江,杭州,310036
基金项目:农业部超级稻资助项目;浙江省重点项目;中国博士后科学基金
摘    要:在水分胁迫和非水分胁迫条件下分别种植水稻亲本和重组自交系(RIL)群体,在苗期生长阶段和开花后采用漆标定位方法分别考察叶片的叶绿素含量变化,进行不同水分环境下叶绿素含量和胁迫敏感指数的遗传分析.在两种不同水分供应条件下,在不同生育期共定位到13个控制叶绿素含量的具有加性效应的QTL,其中干旱环境中检测到6个,贡献率为4.74%~19.86%;水田环境中检测到7个,贡献率为4.92%~14.02%;未检测到两种环境下共同表达的QTL.检测到7个影响胁迫敏感指数的QTL,其中在苗期和开花期第1次测定时分别检测到的影响胁迫敏感指数的QTL(qkhChl-2a和qkhChl-6)贡献率高达25.29%和38.70%,增效等位基因均来自母本珍汕97B.

关 键 词:水稻  重组自交系  数量性状座位  叶绿素含量  干旱
文章编号:1008-9209(2007)04-0400-07
修稿时间:2006-11-01

QTL analysis of chlorophyll contents in rice under different water supply
SHEN Bo,ZHUANG Jie-yun,FAN Ye-yang,JIANG Jing,ZHENG Kang-le.QTL analysis of chlorophyll contents in rice under different water supply[J].Journal of Zhejiang University(Agriculture & Life Sciences),2007,33(4):400-406.
Authors:SHEN Bo  ZHUANG Jie-yun  FAN Ye-yang  JIANG Jing  ZHENG Kang-le
Institution:1. State Key Laboratory of Rice Biology, National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China; 2. College of Life and Environment Sciences, Hangzhou Normal University, Hangzhou 310036, China
Abstract:To make an genetic analysis of chlorophyll contents inheritance under different water supply, the parents and 247 RILs were respectively planted under water stress and non-water stress, and chlorophyll contents were continually measured on the same leaf at seedling and after anthesis, respectively, Under different water supply, a total of 13 QTL for chlorophyll contents was detected to have significant additive effects at different growth stages. Among the QTL detected, 6 QTL were detected under water stress, explaining 4. 74% to 19. 86% of the phenotypic variation, 7 QTL detected under paddy field, explaining 4. 92% to 14. 02 % of the phenotypic variation. No QTL was detected in the same interval under water stress and nonwater stress. Meanwhile, 7 QTL were detected for stress sensitive index, of which 2 QTL, qkhChl-2a and qkhChl-6, explained 25. 29% and 38. 70% of phenotypic variations at the first measurement of seedling and anthesis. The alleles for increasing trait values were from Zhenshan 97B.
Keywords:rice  RIL population  quantitative trait loci  chlorophyll content  water stress
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