<FONT face="Verdana">水稻剑叶气孔性状QTL分析</FONT>

李睿,赵姝丽,毛艇,  徐正进,陈温福

doi:10.3969/j.issn.1001-7216.2010.06.017

中国水稻科学 >

2010 , Vol. 24 >Issue 6: 659 - 62

DOI: https://doi.org/10.3969/j.issn.1001-7216.2010.06.017

研究简报

水稻剑叶气孔性状QTL分析

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¹沈阳农业大学水稻研究所/农业部作物生理生态遗传育种重点开放实验室/辽宁省北方粳稻遗传育种重点实验室, 辽宁沈阳 110161; ²辽宁省盐碱地利用研究所, 辽宁盘锦 124200; *通讯联系人, E-mail: xuzhengjin@126.com

收稿日期: 1900-01-01

修回日期: 1900-01-01

网络出版日期: 2010-11-10

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QTL Analysis on Stomatal Trait of Flag Leaf in Rice

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¹Rice Institute, Shenyang Agricultural University/Key Laboratory of Crop Physiology, Ecology, Genetics and Breeding, Ministry of Agriculture/Key Laboratory of Northern Japonica Rice Breeding of Liaoning, Shenyang 110161, China； ²Liaoning Provincial SalineAlkali Land Utilization and Research Institute, Panjin 124200, China; *Corresponding author, E-mail: xuzhengjin@126.com

Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2010-11-10

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摘要

为剖析水稻叶片气孔性状的遗传机理，以典型籼稻七山占和典型粳稻秋光构建的F10重组自交系群体为材料，用该群体包括122个SSR标记的遗传连锁图谱对水稻齐穗期剑叶气孔性状进行了QTL分析。共检测到9个控制气孔相关性状的QTL。包括4个控制气孔密度的QTL（qSD1、qSD4、qSD7和qSD8），分别位于第1、4、7和8染色体上，贡献率分别为72%、81%、91%和59%；2个控制气孔长度的QTL（qSL4和qSL6），位于第4和6染色体上，贡献率分别为66%和105%；3个控制气孔宽度的QTL（qSW5、 qSW7和qSW10），位于第5、7和10染色体上，贡献率分别为124%、97%和56%。与其他研究结果相比较发现，除qSD1外，其余8个QTL过去均未曾报道过，其中位于第4染色体上控制气孔密度的qSD4与前人检测到的控制光合速率的QTL重叠。

关键词： 水稻; 数量性状基因座; 气孔密度; 气孔长度; 气孔宽度

本文引用格式

李睿,赵姝丽,毛艇, 徐正进,陈温福 . 水稻剑叶气孔性状QTL分析[J]. 中国水稻科学, 2010 , 24(6) : 659 -62 . DOI: 10.3969/j.issn.1001-7216.2010.06.017

Abstract

To understand the genetic mechanism of stoma related traits, an F10 population derived from a cross between a tropical japonica rice (Akihikari) and an indica rice(Qishanzhan) was used to analyze QTLs controlling the stoma related traits. Nine QTLs for stoma related traits were detected. Four putative QTLs(qSD1, qSD4, qSD7, qSD8) controlling stomatal density were located on chromosomes 1, 4, 7 and 8, with the explained variance of 7.2%, 8.1%, 9.1% and 5.9%, respectively. Two QTLs(qSL4, qSL6) for stomatal length were detected on chromosomes 4 and 6, with the explained variance of 6.6% and 10.5%, respectively. Three QTLs(qSW5, qSW7, qSW10) for stomatal width were detected on chromosomes 5, 7 and 10, with the explained variance of 12.4%, 9.7% and 5.6%, respectively. All the eight QTLs except qSD1 were not previously reported. qSD4 on chromosome 4 controlling stomatal density was overlapped with the QTL of photosynthetic rate which was detected before.

Key words： rice; quantitative trait locus; stomatal density; stomatal length; stomatal width; genetics

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