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Annals of Botany 82: 829-833, 1998
© 1998 Annals of Botany Company

Genetic Diversity inBrassica oleraceaL. (Cruciferae) and Wild Relatives (2n=18) using RAPD Markers

A. LÁZARO and I. AGUINAGALDE

Centro de Recursos Fitogenéticos, Instituto Nacional de Investigaciones Agrárias, Apdo. Correos 45, 28800, Alcalá de Henares, Madrid, Spain Dpto. Biología Vegetal E.T.S.I. Agrónomos, Universidad Politécnica, 28040, Madrid, Spain

February 18, 1998 ; April 20, 1998 . August 18, 1998 .

This paper presents the evaluation of genetic diversity in 29 populations of wild taxa of theBrassica oleraceaL. group (2n=18) and two cultivars, using RAPDs as molecular markers. In a previous paper (Lázaro and Aguinagalde,Annals of Botany82: 000–000, 1998), 11 isozymes were used for the same purpose. Results obtained with the two molecular markers (isozymes and RAPDs) are compared. DNA from ten individuals per population was analysed using six different primers; the 151 detected bands were polymorphic, 11 were common to all species, six to all taxa, only one to every population; and no bands were shared by every individual. The dendrogram obtained using genetic distances clustersB. oleraceapopulations withB. bourgeaui, B. alboglabra, B. montanaandB. incana. B. insularis, B. macrocarpa, B. villosaandB. rupestrispopulations form another cluster. Populations ofB. creticaandB. hilarionisform the third cluster. Genetic diversity inB. oleraceapopulations, theB. rupestriscomplex andB. creticasubspecies was estimated using the AMOVA programme; the latter was the most diverse.Copyright 1998 Annals of Botany Company.

Brassica oleraceaL., wild relatives, genetic diversity, genetic resources, RAPD markers, AMOVA.


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