基于模型的香蕉种质资源群体结构聚类分析及其亲缘关系分析  

Clustering Analysis and Genetic Relationship Analysis of Banana Germplasm Resources Based on the Model

作　　者：张俊[1,2] 王静毅[2] 陈友[3] 冯慧敏[3] 武耀廷[3] 王沛政[3] 

机构地区：[1]海南大学农学院,海南海口570228 [2]中国热带农业科学院热带作物生物技术研究所,海南海口571101 [3]琼州学院/三亚市热带植物分子育种重点实验室,海南三亚572022

出　　处：《热带作物学报》2014年第2期232-238,共7页Chinese Journal of Tropical Crops

基　　金：海南省自然科学基金项目(No.311054);琼州学院引进人才博士启动资金项目(No.QYXB201105);三亚市院地科技合作项目(No.2013YD41)

摘　　要：应用SSR分子标记技术,结合structure软件分析了32份香蕉种质之间的遗传关系。结果显示32份香蕉群体分为4大亚群:本地大蕉群、ABB群(包含引进大蕉亚群、粉蕉群)、AAA群及mix群。国内大蕉与引进大蕉遗传关系较远;粉蕉和大蕉各个品种之间存在丰富的遗传多样性;AAA群的皇帝蕉、Yangambi KM5和AAcv Rose栽培品种与我国早期引进的主栽品种Williams遗传关系较远;本地大蕉群中的酸芭蕉(ABB)和东莞中把大蕉(ABB)与其它大蕉相聚较远;ABB群组中巨型大蕉(ABB)和FHIA-03(AABB)与该群中的其它品种相聚较远;华农15和Williams没有被区分开,它们可能是同一克隆。研究结果表明基于模型的structure聚类分析也能用于遗传多样性分析。The genetic relationship of 32 banana germplasms was analyzed by using the SSR molecular marker technology and structure software. The results showed that the 32 banana germplasms could be divided into four groups： domestic plantain group, ABB group（including subsets introduced, dwarf banana group）, AAA group and mix group. The genetic relationship between the domestic plantains and introducing plantains was more distant. The genomic diversity among the varieties of the dwarf banana and plantains groups wa richer. The Emperor Banana, Yangambi KM5 and AAcv Rose cuhivars in the AAA group had a bigger genetic distance from the cultivar Williams which was earlier introduced. Suanbajiao（ABB） and Dongguan Zhongbadajiao（ABB） from the local plantains group also had a bigger distance from the rest plantains. Giant plantain（ABB） and FHIA-03 （AABB） had a distant genetic relationship with the rest cultivars in the ABB group. As Huanong 15 and Williams couldn＇t be differentiated, they may come from the same cloning. The resuhs of the study showed that the clustering analysis based on the model could also be used as a genetic analysis.

关 键 词：香蕉 SSR Structure分析 聚类分析 

分 类 号：S668.1[农业科学—果树学]