苦荞“翅米荞×野苦荞”重组自交系群体籽粒黄酮含量及籽粒性状的分析  

Analysis of flavonoids content in grains and grain traits on ‘Chimiqiao’ and ‘Yekuqiao’ recombinant inbred lines population of tartary buckwheat

作　　者：吕丹 黎瑞源[2] 郑冉 郑俊青 陈其皎[1] 石桃雄[1] 陈庆富[1] LV Dan;LI Ruiyuan;ZHENG Ran;ZHENG Junqing;CHEN Qijiao;SHI Taoxiong;CHEN Qingfu(Research Center of Buckwheat Industry Technology,Guizhou Normal University,Guiyang,Guizhou 550001,China;Key Laboratory of Information and Computing Science of Guizhou Province,Guizhou Normal University,Guiyang,Guizhou 550001,China)

机构地区：[1]贵州师范大学荞麦产业技术研究中心,贵州贵阳550001 [2]贵州师范大学贵州省信息与计算科学重点实验室,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2019年第6期40-46,共7页Journal of Guizhou Normal University：Natural Sciences

基　　金：国家自然科学基金(31460280,31860408);贵州省荞麦种质资源保育及创新重点实验室建设基金(黔教合KY字[2017]002);贵州省科技厅科学技术基金(黔科合JZ字[2014]2011号);贵州省科技合作计划项目(黔科合LH字[2016]7224号,黔科合LH字[2015]7769)

摘　　要：以翅米荞为母本,野苦荞为父本杂交构建的重组自交系(WT-RILs)群体F 8代的299个家系为材料,对苦荞籽粒黄酮含量、长宽比、产量、百粒质量进行变异性分析、相关性分析及聚类分析,对不同粒型、粒色和果壳型株系的黄酮含量进行了比较。结果显示:各性状变异系数范围为13.67%~71.11%;黄酮含量与产量呈极显著负相关;不同粒色、果壳型株系的黄酮含量存在显著性差异;在欧式距离为19.70~23.90处,299个株系可划分为9类,其中C2和C5分别为黄酮含量的极高端和极低端类群,C9类群产量的均值显著高于其他类群,C2和C9类群中黄酮含量、产量和百粒质量等性状均表现良好的株系可作为高黄酮、高产苦荞品种选育的推选材料。A recombinant inbred lines(WT-RILs)of 299 F 8 generation derived from the cross between‘Chimiqiao’and‘Yekuqiao’were used as materials.Variation analysis,correlation analysis and cluster analysis were carried out on the flavonoids content in grains,grain length-to-width ratio,100-grain weight and yield.Analysis of variance was performed to compare the differences of flavonoids content in grains among WT-RILs with different grain color,grain shape and shell shape.The results showed that the coefficient variation of flavonoids content in grains and grain traits ranged from 13.67%to 71.11%.The flavonoids content in grains was significantly negatively correlated with yield.There were significant differences in flavonoids content among lines with different grain color and different shell shape.The WT-RILs populations could be divided into nine groups at the Euclidean distance of 19.70~23.90.Group C2 had the highest and group C5 had the lowest flavonoids content.Group C9 had the highest yield.The lines with high flavonoids content,grain yield and 100-grain weight in C2 and C9 groups can be used for breeding tartary buckwheat varieties.

关 键 词：苦荞 重组自交系 黄酮含量 籽粒性状 聚类分析 

分 类 号：S517[农业科学—作物学]