小麦K-CMS保持系主要农艺性状的聚类分析  

Cluster Analysis of Main Agronomic Characters of Wheat Maintainer Line for K-type Cytoplasm Male Sterility(CMS)

作　　者：蔡健[1] 程士刚 范海燕[1] 范可章[1] 卢良峰[3] 汪海云[1] 

机构地区：[1]阜阳师范学院生物与食品工程学院,安徽阜阳236037 [2]颍上县润河镇中心学校,安徽阜阳236224 [3]河南农业职业学院现代农业工程系,河南中牟451460

出　　处：《中国农学通报》2016年第21期58-61,共4页Chinese Agricultural Science Bulletin

基　　金：安徽省高校省级自然科学基金重点项目"小麦T-CMS相关基因orf256/cox1的克隆及功能分析"(KJ2014A194);阜阳师范学院重大科技成果孵化基金项目"皖北主栽小麦品种烟农5158高抗赤霉病基因的回交转育"(kjfh201605);阜阳师范学院大学生创新创业训练计划项目"皖北地区猕猴桃引种栽培研究"(201510371017)

摘　　要：通过对21个小麦K-CMS保持系品种的农艺性状进行调查,旨在分析这些品种的遗传多样性。以2年田间试验得到的株高、穗长、小穗数、穗下节长、穗粒草重、穗粒数、穗粒重、旗叶长等农艺性状为依据,计算21个品种间遗传距离,采用类平均分析法(UPGMA)对供试材料进行聚类分析。结果表明:供试的21个品种共划分为6个类群,Ⅰ类为‘大作1号’、‘国育101’、‘濮麦6311’、‘中育1211’、‘焦麦268’、‘长育918’、‘泛麦526’;Ⅱ类为‘锦科2号’、‘安农12’;Ⅲ类为‘经科168’;Ⅳ类为‘偃农27’、‘农科668’;Ⅴ类为‘存麦15’、‘上麦1号’、‘聊麦18’、‘囤麦127’、‘科林04177’、‘光泰54’、‘郑麦1290’、‘耕麦787’;Ⅵ类为‘昌麦9号’。划分结果与系谱分析基本一致,并把系谱来源不清的品种划分到相应的杂种优势群。小麦K-CMS保持系品种形状检测是研究保持系品种间遗传差异的一种方法,可为小麦"三系"选育提供初步的理论依据。The objective was to analyze the genetic diversity of 21 maintainer line varieties for K- type cytoplasm male sterility（CMS） in wheat by investigating their agronomic characters. The plant height, paniclelength, per panicle, panicle next section length, ear kernel weight, per panicle grains, per panicle grains weightand flag leaf length were obtained from field experiments in two years. The genetic distances of the 21 varietieswere calculated, and the cluster analysis was carried out with unweighted pair- group method arithmeticaverages（UPGMA）. The results showed that the 21 varieties were classified into six groups. Group I consistedof‘dazuo1＇,‘guoyu101＇,‘pumai6311＇,‘zhongyu1211＇,‘jiaomai268＇,‘changyu918＇,‘fanmai526＇; groupⅡ consisted of‘jinke2＇,‘annong12＇; group Ⅲ consisted of‘jingke168＇; group Ⅳ consisted of‘yannong27＇,‘nongke668＇; group Ⅴ consisted of‘cunmai15＇,‘shangmai1＇,‘liaomai18＇,‘tunmai127＇,‘kelin04177＇,‘guangtai54＇,‘zhengmai1290＇,‘gengmai787＇; group Ⅵ consisted of‘changmai9＇. The results wereconsistent with the available pedigree data. Moreover, varieties with unknown pedigree were assigned to theestablished heterotic groups. The shape detection of maintainer line for K-CMS in wheat was a way to study the genetic difference among varieties, and it provided the basis for breeding＂three lines＂of wheat.

关 键 词：小麦 K-CMS 农艺性状 遗传多样性 聚类分析 

分 类 号：S184[农业科学—农业基础科学]