干旱地区农业研究Issue(3)：117-123,7.DOI:10.7606/j.issn.1000-7601.2015.03.19
半干旱条件下粳稻米外观品质性状的 QTL 分析
QTL mapping for appearance quality traits of japonica rice seeds under semi-arid conditions
摘要
Abstract
In order to investigate the effects of the semi-arid conditions on rice quality ,an F6-generation rice recom-binant inbred population (referred to as RILs population ) containing of 224 lines derived from crosses between Z601 and C14 was selected as experimental materials .Under the conditions of water-saving irrigation ,the correlation between ap-pearance quality traits and associated quantitative trait loci (QTL ) was analyzed .The result showed that the percentage of grains with chalkiness was significantly positively correlated with area of milled rice ( r=0 .236 ) and endosperm trans-parency(r=0 .659) .Endosperm transparency was extremely significantly negatively correlated with ratio of milled rice length-width ( r= -0 .481 ) ,and length of milled rice ( r= -0 .166 ) was significantly positively correlated with width of milled rice( r=0 .283) .Degree of milled rice embryos was extremely significantly negatively correlated with degree of endosperm chalkiness ( r= -0 .269 ) .A total of 34 QTLs controlling milling quality traits in rice were detected ,includ-ing three QTL controlling length of milled rice ,eight QTL controlling width of milled rice ,three QTL controlling area of milled rice ,six QTL controlling ratio of milled rice length-width ,three QTL controlling percentage of grain with chalki-ness ,one QTL controlling degree of endosperm chalkiness ,five QTL controlling endosperm transparency ,and five QTL controlling degree of milled rice embryos ,which were located on chromosome 3 ,5 ,6 ,7 ,8 ,11 and 12 ,respectively .关键词
水稻/干旱胁迫/外观品质/相关分析/数量性状位点Key words
rice (Oryza sativa L .)/drought stress/appearance value/correlation analysis/quantitative trait locus (QTL )分类
农业科技引用本文复制引用
赵飞,尹维娜,肖艳云,东丽,唐亮,孙健,华泽田..半干旱条件下粳稻米外观品质性状的 QTL 分析[J].干旱地区农业研究,2015,(3):117-123,7.基金项目
国家863项目“强优势粳稻杂交种的创制与应用” （）
