Genetic Variation in the Liverwort Riccia dictyospora (Ricciaceae, Hepaticopsida)
1989; American Society of Plant Taxonomists; Volume: 14; Issue: 2 Linguagem: Inglês
10.2307/2418903
ISSN1548-2324
Autores Tópico(s)Botany and Plant Ecology Studies
ResumoAn electrophoretic survey of eight enzyme loci in Riccia dictyospora detected three distinct sets of genotypes among 38 sampling localities representing the southeastern quarter of the United States. Mean genetic identity for populations representing a single genotypic set ranged from I = 0.856-0.939 while for populations representing different genotypic sets I = 0.211-0.454. The apparent inability of linkage to account for these genotypic sets and the frequent coexistence at individual collection localities of representatives of different genotypic sets suggest that R. dic- tyospora represents a composite of three sibling species.
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