Analysis of genetic diversity and relationships in East African banana germplasm

被引：0

作者：

M. Pillay

E. Ogundiwin

D. C. Nwakanma

G. Ude

A. Tenkouano

机构：

[1] IITA/Nigeria,

[2] c/o L.W. Lambourn & Co.,undefined

[3] Carolyn House,undefined

[4] 26 Dingwall Road,undefined

[5] Croydon CR9 3EE,undefined

[6] UK e-mail: M.Pillay@satmail.bt.com Fax: 871-68234-1882,undefined

[7] Plantain and Banana Improvement Project,undefined

[8] Crop Improvement Division,undefined

[9] International Institute of Tropical Agriculture,undefined

[10] PMB 008 Nchia-Eleme,undefined

[11] Port Harcourt,undefined

[12] Nigeria,undefined

来源：

Theoretical and Applied Genetics | 2001年 / 102卷

关键词：

Keywords Musa; Bananas; Cluster analysis; Genetic diversity; RAPD markers;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The genetic diversity and phylogenetic relationships of 29 East African highland banana (Musa spp.) cultivars and two outgroup taxa, M. acuminata Calcutta 4 and Agbagba were surveyed by RAPD analysis. A genetic similarity matrix was established based on the presence or absence of polymorphic amplified fragments. Phylogenetic relationships were determined by UPGMA cluster analysis. RAPDs showed that the highland bananas are closely related with a narrow genetic base. Nevertheless, there were sufficient RAPD polymorphisms that were collectively useful in distinguishing the cultivars. The dendrogram was divisible into a major cluster composed of all the AAA highland banana cultivars and Agbagba (AAB) and a minor cluster consisting of Kisubi (AB), Kamaramasenge (AB) and Calcutta 4 (AA). Several subgroups are recognized within the major cluster. RAPD data did not separate beer and cooking banana cultivars. Our study showed that RAPD markers can readily dissect genetic differences between the closely related highland bananas and provide a basis for the selection of parents for improvement of this germplasm.

引用

页码：965 / 970

页数：5