| 利用回交重组自交系群体检测3个水稻光合功能相关性状QTL |
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| 引用本文： | 胡茂龙,张迎信,孔令娜,杨权海,王春明,翟虎渠,万建民.利用回交重组自交系群体检测3个水稻光合功能相关性状QTL[J].作物学报,2006,32(11):1630-1635. |
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| 作者姓名： | 胡茂龙 张迎信 孔令娜 杨权海 王春明 翟虎渠 万建民 |
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| 作者单位： | 1.南京农业大学作物遗传与种质创新国家重点实验室，江苏省植物基因工程研究中心，江苏南京210095；2.中国农业科学院，北京100081 |
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| 基金项目： | 国家高技术研究发展计划(863计划);江苏省自然科学基金 |
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| 摘 要： | 利用98个家系组成的日本晴(粳稻)/Kasalath（籼稻）//日本晴回交重组自交系(backcross inbred lines, BILs) 群体(BC1F10),研究水稻光合功能相关的数量性状基因座（QTL）。基于水稻抽穗后7 d叶片全氮含量（TLN）、叶绿素a/b比值（Chl.a/b）和叶绿素含量（Chl），共检测到8个QTL，其LOD值为2.61 ~ 6.42
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| 关 键 词： | 水稻 光合功能 数量性状基因座（QTL） 全氮 叶绿素 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006-04-16 |
QTL Detection for Three Traits Associated with Photosynthetic Functions in Rice Using Backcross Inbred Lines |
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| HU Mao-Long,ZHANG Ying-Xin,KONG Ling-Na,YANG Quan-Hai,WANG Chun-Ming,ZHAI Hu-Qu,WAN Jian-Min.QTL Detection for Three Traits Associated with Photosynthetic Functions in Rice Using Backcross Inbred Lines[J].Acta Agronomica Sinica,2006,32(11):1630-1635. |
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| Authors: | HU Mao-Long ZHANG Ying-Xin KONG Ling-Na YANG Quan-Hai WANG Chun-Ming ZHAI Hu-Qu WAN Jian-Min |
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| Institution: | 1. State Key Laboratory for Crop Genetics & Germplasm Enhancement, Nanjing Agricultural University; Research Center of Plant Gene Engineering, Nanjing 210095, Jiangsu; 2. Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | A mapping population of the backcross inbred lines derived from a cross of Nipponbare/Kasalath//Nipponbare by the single seed descent method,was used to detect quantitative trait loci(QTL) for traits associated with photosynthetic functions.Total leaf nitrogen content(TLN),chlorophyll a/b ratio(Chl.a/b) and chlorophyll content(Chl)in leaves of rice(Oryza sativa L.) were measured at the 7th day after heading,and a total of eight putative QTLs were detected with percentage of variance explained(PVE) of 9.7!% and LOD of 2.616.42.Of those putative QTLs,two for TLN were detected on chromosomes 1 and 6,with PVE of 9.7% and 10.8%,respectively,three controlling Chl.a/b on chromosomes 2,3 and 12,with PVE of 10%,10.5% and 21%,three controlling Chl on chromosome 1,4 and 8,with PVE of 13.7%,10.7% and 10%.Interestingly,the QTL controlling chlorophyll content,namely qCC-1 reported here,was detected in the region of the RFLP marker C122 on chromosome 1,where harbored a NADH-glutamate synthase structure gene according to the previous study.Because the glutamate is the first chlorophyll precursor,qCC-1 would play a vital role in photosynthetic functions.Two QTLs controlling Chl were detected on chromosomes 4 and 8,however,no QTL were detected in the vicinity of C122 at the 30th day after heading,suggesting that the effect of the qCC-1 controlling Chl decreased during leaf senescence. |
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| Keywords: | Rice Photosynthetic functions QTL Total leaf nitrogen Chlorophyll |
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