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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (21): 18-21.

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

控制水稻株高的QTL定位及环境互作分析

贾小丽 林文雄   

  • 收稿日期:2010-09-27 修回日期:2011-04-09 出版日期:2011-08-25 发布日期:2011-08-25
  • 基金资助:

    福建省重大科技专项

QTL Mapping and Gene × Environment Interaction Analysis of the Height of Plant in Rice (Oryza sativa L.)

  • Received:2010-09-27 Revised:2011-04-09 Online:2011-08-25 Published:2011-08-25

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摘要：

为水稻的基因水平研究提供了重要的平台，利用由小穗小粒型品种‘密阳46’和大穗大粒型品种FJCD建立的一个包含130个家系F10的重组自交系群体，分别在武夷山和莆田环境下测定其株高，进行QTL定位及环境互作分析。武夷山环境下检测到2个加性QTL，位于1、2号染色体上，其中主效qPH-2-5解释了26.2%的表型变异；莆田环境下检测到4个加性QTL，分别位于2、2、2、6号染色体上，共解释了20.61%的表型变异。经过GE互作分析，2个背景QTL存在显著的加性×环境互作效应，共解释了17.36%的表型变异。此研究从一定程度上揭示了株高的数量遗传规律，同时为株高分子育种提供理论依据。

关键词: 秸秆资源, 秸秆资源, 秸秆人造板

Abstract:

Mapping of quantitative trait loci (QTL) and gene × environment interaction were used to research the height of plant from a RIL (recombinant inbred lines) including 130 lines deriving from Milyang 46 and FJCD during the grain-filling. This research work carried in Wuyishan and Putian. In Wuyishan, two additive QTLs were located on chromosome 1, 2, in which the main effect qPH-2-5 explained 26.2% of the phenotypic variation; in Putian, four additive QTLs were detected, located on chromosome 2, 2, 2, 6, and explained 20.61% of the phenotypic variation. After GE interaction analysis, two background QTLs had significant additive × environment interaction effects and explained 17.36% of the phenotypic variation. This study reveals the law of quantitative genetics on the height of plant in a way, and provides theoretical basis for molecular breeding.

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