Genetic diversity of wild, weedy and cultivated forms of Brassica rapa View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

1995-05

AUTHORS

J H Crouch, B G Lewis, D J Lydiate, R Mithen

ABSTRACT

Restriction Fragment Length Polymorphisms (RFLPs) were used to study the genetic diversity within and between accessions of 'wild' and cultivated B. rapa. Two of the wild accessions were likely to be escapes from cultivation because of their geographical origins (Argentina and California). The nature of the other three wild accessions (from Turkey, Algeria and Sicily) was not known. Principal components analysis placed the Argentinian, Californian and Turkish accessions within a cluster which contained all the cultivated forms of B. rapa. The other two B. rapa accessions were genetically divergent and, on the basis of their RFLP genotypes, would have been considered to be more distant from the cultivated forms of B. rapa than accessions of B. nigra and B. montana. The implications of these results for germplasm conservation, selection of material for breeding programmes and phylogenetic studies on the origin of Brassica crops are discussed. More... »

PAGES

hdy199569

Journal

TITLE

Heredity

ISSUE

5

VOLUME

74

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/hdy.1995.69

DOI

http://dx.doi.org/10.1038/hdy.1995.69

DIMENSIONS

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