In: Annals of Botany, 2009, vol. 103, no. 1, p. 65-77
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In: Annals of Botany, 2009, vol. 104, no. 3, p. 517-525
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In: Systematic Biology, 2000, vol. 49, no. 2, p. 306-362
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In: Molecular Phylogenetics and Evolution, 2012, p. -
The genus Alcantarea comprises near 30 species endemic to rocky outcrops from eastern Brazil. Most species are ornamental and several are threatened due to habitat loss and over collection. In this paper we examine the phylogenetics of Alcantarea and its relationship with the Brazilian members of Vriesea, a genus of which Alcantarea has been treated as a subgenus. We discuss the morphological...
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In: Journal of Biogeography, 2011, vol. 38, no. 10, p. 1923–1935
Aim Phylogeographical studies in the Brazilian Atlantic Forest (BAF) have mostly included species associated with forest habitats, whereas taxa associated with grassland and sand-dune plant communities have so far been largely overlooked. This study examines the phylogeography of the orchid Epidendrum fulgens, which occurs on coastal sand dunes and granitic outcrops, in order to identify major...
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In: Molecular Ecology, 2011, vol. 20, no. 15, p. 3185–3201
The roles of intra- and interspecific gene flow in speciation and species evolution are topics of great current interest in molecular ecology and evolutionary biology. Recent modelling studies call for new empirical data to test hypotheses arising from the recent shift from a ‘whole-genome reproductive isolation’ view to a ‘genic’ view of species and speciation. Particularly scarce (and...
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In: Molecular Ecology, 2010, vol. 19, no. 18, p. 3981–3994
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In: Genetics, 2010, vol. 186, p. 699–712
Admixture between genetically divergent populations facilitates genomic studies of the mechanisms involved in adaptation, reproductive isolation and speciation, including mapping of the loci involved in these phenomena. Little is known about how pre- and postzygotic barriers will affect the prospects of 'admixture mapping' in wild species. We have studied 93 mapped genetic markers...
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In: Annals of Botany, 2009, vol. 104, no. 3, p. 517-525
Background and Aims: Cypripedium calceolus, although widespread in Eurasia, is rare in many countries in which it occurs. Population genetics studies with nuclear DNA markers on this species have been hampered by its large nuclear genome size. Plastid DNA markers are used here to gain an understanding of variation within and between populations and of biogeographical patterns. Methods:...
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In: Annals of Botany, 2009, vol. 103, no. 1, p. 65-77
Background and Aims: Bromeliads (Bromeliaceae) adapted to rock outcrops or ‘inselbergs’ in neotropical rain forests have been identified as suitable plant models for studying population divergence and speciation during continental plant radiations. Little is known about genetic relationships and variation in reproductive strategies within and among inselberg-adapted species, yet knowledge...
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