华北农学报Issue(5)：53-58,6.
携带Wx-mq基因水稻新品种（系）稻米RVA谱特征及与直链淀粉含量的相关性
Correlation Analyses of Amylose Contents and Srarch RVA Profiles of New Rice Varieties(Lines) Carrying Wx-mq Gene
摘要
Abstract
57 new rice varieties(lines)carrying Wx-mq gene were used as experimental materials .Marker-assis-ted selection,chemical extraction,as well as statistical methods were used to detect Wx-mq gene,to determine rice RVA profile characteristics and amylose content of all varieties ( lines) ,to study the relationship among RVA profile characteristics between RVA profile characteristics and amylose contents ( AC ) .To study the differences of RVA profile characteristics of rice varieties with different AC ,we divided these varieties into three groups ,including low AC,moderate AC and high AC .The results showed as follows:It was shown that Wx-mq gene were detected in 57 new rice varieties ( lines ) .The tight relationship among RVA profiles was found .There were very significant (P<0.01) positive correlations among PKV,HPV,CPV,PeT and CSV,very significant positive correlations be-tween BDV and PKV,among PeT,SBV and CSV,respectively,significant(P<0.05)positive correlations between PaT and HPV,PaT and PeT,respectively,and very significant negative correlation between SBV and PKV ,SBV and BDV. Determination of amylose content indicated that the amylose content of 57 materials were mainly distributed between 8%-11%.Varieties with different AC had different RVA profile characteristics ,when AC was higher ,PKV,HPV, CPV,CSV,PeT and PaT were higher ,and the trend of BDV and SBV were not obvious .AC was very significant posi-tively correlated to HPV ,CPV,CSV and PeT ,and significant positively correlated to PKV .The results of this study can be further expanded the theoretical basis of using RVA profile value to evaluate rice cooking and eating qualities .关键词
水稻/暗胚乳突变基因/低直链淀粉含量/稻米淀粉RVA谱/相关分析Key words
Rice/Translucent endosperm gene/Low amylose content/RVA profile properties/Correlation analyses分类
农业科技引用本文复制引用
于新,王才林,张亚东,朱镇,赵凌,陈涛,赵庆勇,周丽慧,姚姝,赵春芳..携带Wx-mq基因水稻新品种（系）稻米RVA谱特征及与直链淀粉含量的相关性[J].华北农学报,2013,(5):53-58,6.基金项目
江苏省农业科技自主创新基金项目（CX（12）1003）；现代农业产业技术体系建设专项资金项目（CARS-01-47）；江苏省农业科技支撑计划项目（BE2011302）；国家成果转化项目 （）
