水稻籼粳杂种育性的QTL分析

林荔辉1王爱梅1周元昌1 官华忠1 蒋云林1吴建梅1吴为人2，*

doi:10.3969/j.issn.10017216.2011.06.005

中国水稻科学 >

2011 , Vol. 25 >Issue 6: 594 - 598

DOI: https://doi.org/10.3969/j.issn.10017216.2011.06.005

研究报告

水稻籼粳杂种育性的QTL分析

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¹福建农林大学作物科学学院，福建福州 350002； ²福建农林大学生命科学学院，福建福州 350002；

收稿日期: 2011-08-18

修回日期: 2011-09-27

网络出版日期: 2011-11-10

基金资助

福建省教育厅重点资助项目（JK2009011）；福建省科技厅重大专项资助项目（2008NZ0201）。

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QTL Analysis for Fertility of IndicaJaponica Hybrids in Rice

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¹ College of Crop Science,Fujian Agriculture and Forestry University, Fuzhou 350002, China; ² College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China;

Received date: 2011-08-18

Revised date: 2011-09-27

Online published: 2011-11-10

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摘要

以籼稻保持系珍汕97B和粳稻保持系辽91B为亲本，构建了一个包含176个单株的F2群体及123个SSR标记的遗传图谱，在3种环境下联合检测控制花粉育性和小穗育性的QTL。共检测到3个控制花粉育性的主效应（加性效应和显性效应）QTL（qPF3、qPF5和qPF6）和4个控制小穗育性的主效应QTL（qSF3、qSF5、qSF6和qSF8），其中qPF5与qSF5、qPF6与qSF6均为同一个QTL，为重要的育性QTL。另外，检测到3对花粉育性和4对小穗育性QTL间互作，说明上位性效应对籼粳杂交后代的育性具有重要作用。

关键词： 水稻; 籼粳杂种; 数量性状基因座; 花粉育性; 小穗育性

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林荔辉1王爱梅1周元昌1 官华忠1 蒋云林1吴建梅1吴为人2，* . 水稻籼粳杂种育性的QTL分析[J]. 中国水稻科学, 2011 , 25(6) : 594 -598 . DOI: 10.3969/j.issn.10017216.2011.06.005

Abstract

An F2 population consisting of 176 individuals was developed from a cross between an indica maintainer line Zhenshan 97B and a japonica maintainer line Liao 91B and a genetic map containing 123 SSR markers was constructed based on the population. Pollen fertility and spikelet fertility were investigated in three seasons. Three maineffect (additive effect and dominant effect) quantitative trait loci (QTLs) for pollen fertility (qPF3, qPF5 and qPF6) and four maineffect QTLs for spikelet fertility (qSF3, qSF5, qSF6 and qSF8) were detected. Among them, qPF6 and qSF6, and qPF5 and qSF5, important QTLs for rice fertility, were mapped on the same locations. In addition, three pairs of QTL interaction for pollen fertility and four pairs for spikelet fertility were detected, suggesting that epistatic effects play important roles in the fertility of indicajaponica hybrids.

Key words： rice; indicajaponica hybrid; quantitative trait locus; pollen fertility; spikelet fertility

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