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Genetic diversity in cucumber (Cucumis sativus L.): I. A reevaluation of the U.S. germplasm collection by Vladimir Meglic; Felix Serquen; Jack E. Staub is a Agricultural and Biological Sciences article available to read on EtoBox.

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Genetic variation within the U.S. cucumber collection (Cucumis sativus var. sativus L. and var. hardwickii (Royle) Alef.) was assessed by examing the variation at 21 polymorphic isozyme loci and comparing the results of this investigation with a similar previous analysis of 14 loci. About 29% (15 of 51) of the enzyme systems examined in an initial survey were polymorphic. Seven loci which were not previously used to estimate genetic diversity, were assessed. On average, 1\_4 loci were polymorphic per enzyme system and 2.2 alleles were present per polymorphic locus. The frequency of polymorphisms was relatively low for Fdp-l(2) (0.01), Mpi-l(1) (0.03), and Skdh(1) (0.02). Principal component and cluster analyses of allelic variation at polymorphic loci separated a diverse array of 757 cucumber accessions from the U.S. National Plant Germplasm Systesm's (NPGS) collection into distinct groups by country (45 nations examined). All accessions of C. s. var. sativus were isozymically distinct from C. s. var. hardwickii, which were themselves dissimilar from each other. Data suggest that C. s. var. hardwickii is not a feral derivative of extant C. s. var. sativus populations. The allelic p

Who reads Genetic diversity in cucumber (Cucumis sativus L.): I. A reevaluation of the U.S. germplasm collection?

Author

Vladimir Meglic; Felix Serquen; Jack E. Staub

Publisher

Springer; Springer-Verlag; Akademie Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 1573-5109)

Published

1996

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)