Genetic divergence in four species of the genus Raphanus: Implications for the ancestry of the domestic radish R. sativus |
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Authors: | L. J. LEWIS-JONES J. P. THORPE G. P. WALLIS |
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Affiliation: | Department of Botany and Microbiology;Department of Genetics and Department of Zoology;Department of Genetics;, University College of Swansea, Singleton Park, Swansea, SA2 8PP, U.K |
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Abstract: | Four species of radish of the genus Raphanus were examined by electrophoresis of water soluble proteins. This technique was used to provide information about the degree of genetic differentiation of the species over a range of gene loci coding for various enzymes. These results give genetic distance estimates showing all four radish species to be closely related. From this data a simple dendrogram is constructed to show the possible interrelationships and evolutionary divergence of these species. The domestic radish Raphanus sativus shows the greatest genetic similarity when compared with an Italian population of R. landra . |
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Keywords: | Raphanus radishes genetic variation genetic distance enzyme electrophoresis |
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