摘要
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依据。
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.This research carried in Wuyishan and Putian.In Wuyishan,two additive QTLs were located on chromosome 1 、 2,in which 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 basis for molecular breeding.
出处
《中国农学通报》
CSCD
北大核心
2011年第21期18-21,共4页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金项目"强优势杂交稻及其亲本基因差异表达的规律与机制研究"(30741028)
"不同供氮条件下水稻强弱势粒灌浆的分子机理研究"(30871494)
教育部博士点基金项目"水稻强弱势粒灌浆差异的分子生态学研究"(200803890006)
关键词
QTL定位
水稻
重组自交系
株高
环境互作
QTL mapping
rice(Oryza sativa L.)
recombine inbred line
the height of plant
GE interaction