不同高粱种质资源形态多样性及其形态标记聚类分析  

Morphological Diversity and Cluster Analysis on Markers of Sorghum Germplasms

作　　者：王洋[1] 张明生[1,2] 李祥栋[1] 任明见[2] 高翔 

机构地区：[1]贵州大学生命科学学院,贵州贵阳550025 [2]贵州大学农业生物工程研究院,贵州贵阳550025 [3]贵州省旱粮研究所,贵州贵阳550006

出　　处：《贵州农业科学》2014年第6期1-5,共5页Guizhou Agricultural Sciences

基　　金：农业部引进国际先进农业科学技术项目"基于茅台酒用高粱的种质资源引进及其良种选育"(2012-Z37);贵州省国际科技合作计划项目"酿酒高粱引种及其产量品质的分子标记与良种选育"[黔科合外G字(2012)7014];科技部农业科技成果转化资金项目"茅梁1号高粱品种良种繁育及示范推广"(2013GB2F200437);贵州省科技计划项目"酒用高粱新品种的选育"[黔科合NY(2013)3016]

摘　　要：为高粱种质资源的创新利用及新品种选育提供依据,选择11项形态性状指标作为形态鉴定参数,对收集的94份高粱种质进行相关性状考查及鉴定,采用DPS软件对形态标记数据进行聚类分析。结果表明:94份高粱种质的株高、茎粗、节间长、叶面积、主穗长、千粒重、单穗粒重等形态数量性状差异较大,穗型的紧凑型占52.13%,穗形的纺锤形占77.66%,颖壳色的褐色占52.13%;在欧氏距离4.81处,可将94份种质分成3类,其中第1类88份,第2类4份,第3类仅2份。选择与高粱种质性状特性密切相关的形态指标作为鉴定参数可对高粱种质资源进行初步筛选与鉴定。To provide a reference for creative utilization and new cultivar breeding of sorghum germplasms,the related traits of 94 sorghum germplasms from home and abroad were examined and identified by selected 11 morphological markers indices as morphological identification parameters,and DPS （a data processing software）was used for data clustering analysis.The results showed that the morphological quantitative traits of the 94 sorghum germplasms,including plant height,stem diameter, internode length,leaf area,main ear length,thousand kernel weight and grain weight per spike,varied much,compact ear type,fusiform spike shape and brown shell accounted for 52.13%,77.66% and 52. 13% respectively;94 sorghum germplasms could be divided into three categories at Euclidean distance of 4.81.The first category contained 88 germplasms,the second category contained 4 germplasms,and third category contained only 2 germplasms.It is feasible that selecting the morphological traits indicators of related closely with sorghum germplasm characteristics as identified parameters use to preliminary screen and identify sorghum germplasms.

关 键 词：高粱 种质资源 形态标记 聚类分析 

分 类 号：S514.024[农业科学—作物学]