中国水稻科学Issue(6)：559-568,10.DOI:10.3969/j.issn.1001-7216.2013.06.001
杂交稻“大青棵”现象遗传基础剖析
Study on the Genetic Basis for Abnormal Heading in Hybrid Rice
摘要
Abstract
The problem of abnormal heading in hybrid rice caused great economic losses in recent years.The genetic basis of this phenomenon is still ambiguous and not documented up to now.Four test-crossing populations were constructed using 38 introgression lines (ILs)from Shuhui 527/Fuhui 838 population as male parents and four male sterile lines (II-32A,XieqingzaoA,Gang 46A and Jin 23A)as female parents.The phenotypic evaluation was conducted in Hefei,Hangzhou and Guangzhou in late season.QTL associated with photosensitivity (PS)was identified using one-way analysis of variance (ANOVA)and two-way ANOVA methods with the genotypic and phenotypic data. Progeny testing showed that 55 combinations did not head in Hefei,but normally headed with delayed heading date in Hangzhou and Guangzhou.A total of 12 QTL for PS was found in more than two environments or populations.Using two-way ANOVA,31 epistatic QTLs affecting PS were detected in Hangzhou and Guangzhou,five of which were stably expressed in different populations and environments.The loci interaction between RM331-RM2,RM331-RM5346,RM3395-RM16 and RM3325-RM53 played an important role in controlling the formation of Daqingke for combinations from test-crossing WD57,WD71,WD77,WD78,WD80,WD85 and WD88 with four-types of male sterile lines.关键词
杂交稻/大青棵/抽穗期/感光性/QTL定位Key words
hybrid rice/abnormal heading/heading date/photosensitivity/QTL mapping分类
农业科技引用本文复制引用
曲丽君,张宏军,项超,王辉,夏加发,李泽福,高用明,石英尧..杂交稻“大青棵”现象遗传基础剖析[J].中国水稻科学,2013,(6):559-568,10.基金项目
盖茨基金资助项目(OPP51587) （OPP51587）
国家星火计划资助项目(2011GA710008) （2011GA710008）
安徽省自然科学基金资助项目(090411016) （090411016）
