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Publicação
Genetic structure, reproductive biology and ecology of isolated populations of Asplenium csikii (Aspleniaceae, Pteridophyta)
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Orientador(es)
Resumo(s)
The potential for environmental heterogeneity to generate spatial structuring of genotypes in seedplant populations that occupy patchy habitats has been demonstrated by several studies, but little is
known about the population structure of pteridophytes occupying patchy environments. In this study
we have examined the genetic structure of isolated populations of the rock fern Asplenium csikii, an
ecological specialist, growing almost exclusively on perpendicular walls of natural rock outcrops. All
genetic variation observed in this taxon was partitioned between localities; no allozyme variation was
found within a site and each site was colonized by a single multilocus phenotype (MLP). In total, ®ve
di erent MLPs were recorded from the nine localities, with two MLPs present at more than one site.
Descrição
Palavras-chave
Allozymes Asplenium csikii Breeding systems Polyploidy Isolated populations Colonization
Contexto Educativo
Citação
Vogel, J.C.; Rumsey, F.J.; Russell, S.J.; Cox, C.J.; Holmes, J.S.; Bujnoch, W.; Stark, C.; Barrett, J.A.; Gibby, M.Genetic structure, reproductive biology and ecology of isolated populations of Asplenium csikii (Aspleniaceae, Pteridophyta), Heredity, 83, 5, 604-612, 1999.
Editora
The Genetical Society of Great Britain