Monomorphism, reduced gene flow, and cleistogamy in rare and common species of Lespedeza (Fabaceae)

Population genetic structure was analyzed in the rare, native prairie legume Lespedeza leptostachya Engelm. and in the widespread L. capitata Michx. Both species produce a mixture of chasmogamous and cleistogamous flowers. Allozymes were analyzed for 32 loci from 224 individuals from 12 populations...

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Bibliographic Details
Published inAmerican journal of botany Vol. 79; no. 5
Main Authors Cole, C.T. (University of Minnesota, Morris, MN), Biesboer, D.D
Format Journal Article
LanguageEnglish
Published 01.05.1992
Subjects
CLEISTOGAMIA
CLEISTOGAMIE
FLEUR
FLORES
GENE
GENES
GENETICA
GENETIQUE
IOWA
LESPEDEZA
MINNESOTA
VARIACION GENETICA
VARIATION GENETIQUE
VARIEDADES
VARIETE
WISCONSIN
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Summary:Population genetic structure was analyzed in the rare, native prairie legume Lespedeza leptostachya Engelm. and in the widespread L. capitata Michx. Both species produce a mixture of chasmogamous and cleistogamous flowers. Allozymes were analyzed for 32 loci from 224 individuals from 12 populations of L. leptostachya and for 34 loci in 291 individuals from 12 populations of L. capitata. L. leptostachya is entirely monomorphic at all loci studied, while L. capitata shows strong among-population differentiation for the limited variation that occurs in that species. Allozyme data suggest that the level of gene flow among populations of L. capitata is very low, and that very low levels of outcrossing are effected by the chasmogamous flowers in L. capitata
Bibliography:F30
F63
9195274
ISSN:0002-9122
1537-2197
DOI:10.1002/j.1537-2197.1992.tb14594.x