Journal article
AFLP analysis of genetic relationships in the genus Fosterella L.B. Smith (Pitcairnioideae, Bromeliaceae)

Publication Details
Rex, M.; Patzolt, K.; Schulte, K.; Zizka, G.; Vasquez, R.; Ibisch, P.; Weising, K.
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The neotropical genusFosterellaL.B. Smith (Pitcairnioideae, Bromeliaceae) comprises about 30 species, with acentre of diversity in semiarid to humid habitats of the Andean slopes and valleys of Bolivia. Morphologic differentiationof species is difficult because of a paucity of diagnostic characters, and little is known about the infrageneric phylogeny.Here, we present the results of an amplified fragment length polymorphism (AFLP) analysis of 77Fosterellaspecimens,covering 18 recognized species and 9 as-yet undescribed morphospecies. Eight primer combinations produced 310 bands,which were scored as presence/absence characters. Neighbour-joining tree reconstruction revealed 12 clusters (A-L) withvarious levels of support. Well-supported species groups were also recovered by a principal coordinates analysis. With fewexceptions, morphologically defined species boundaries were confirmed by the molecular data. Phylogenetic relationshipsbetween species groups remained ambiguous, however, because of short internal branch lengths. The AFLP data werecomplemented by a survey of the leaf anatomy of 19Fosterellaspecies. Species concepts and assemblages are discussedin the context of molecular, morphologic, anatomic, ecologic, and biogeographic data. The data suggest that accidentallong-distance dispersal and founder events have been important forFosterellaspeciation.

Last updated on 2019-25-07 at 17:56