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Phylogeographic Structure And Outbreeding Depression Reveal Early Stages Of Reproductive Isolation In The Neotropical Orchid Epidendrum Denticulatum
(2013-07-01)
Phylogeographic studies provide an important framework for investigating the mechanisms operating during the earliest stages of speciation, as reproductive barriers can be examined among divergent lineages in a geographic ...
Divergence in coloration and ecological speciation in the Anolis marmoratus species complex
Adaptive divergence in coloration is expected to produce reproductive isolation in species that use colourful signals in mate choice and species recognition. Indeed, many adaptive radiations are characterized by differentiation ...
Population genomics in Rhamdia quelen (Heptapteridae, Siluriformes) reveals deep divergence and adaptation in the Neotropical region
(MDPI, 2020)
Rhamdia quelen, a Neotropical fish with hybridization between highly divergent mitochondrial DNA (mtDNA) lineages, represents an interesting evolutionary model. Previous studies suggested that there might be demographic ...
Testing the divergence-with-gene flow model of ecological speciation in two species of andean hummingbirds
(UniandesMaestría en Ciencias BiológicasFacultad de CienciasDepartamento de Biología, 2010)
The divergence-with-gene-flow model of ecological speciation proposes speciation can proceed despite genetic interchange in populations distributed along environment al gradients, where variable selective regimes act on ...
Molecular and morphological divergence in a pair of bird species and their ectoparasites
(American Society of Parasitologists, 2009-12)
In an evolutionary context, parasites tend to be morphologically conservative relative to their hosts. However, the rate of neutral molecular evolution across many parasite lineages is faster than in their hosts. Although ...
Genetic potential of a maize population from Southern Brazil for the modified convergent-divergent selection scheme
(SPRINGER, 2010)
Maize (Zea mays L.) is a very important cereal to world-wide economy which is also true for Brazil, particularly in the South region. Grain yield and plant height have been chosen as important criteria by breeders and ...
Divergence in morphometric and life history traits in two thermally contrasting Andean populations of Rhinella spinulosa (Anura: Bufonidae)
(2009)
(1)We studied the variation in characters of two Andean populations of Rhinella spinulosa with different larval thermal regimes as a function of geographic origin and temperature.(2)In both populations, survival and growth ...
Genetic divergence in mitochondrial DNA of Anopheles nuneztovari (Diptera : Culicidae) from brazil and Colombia
(Soc Brasil GeneticaRibeirao PretBrasil, 2000)
Cryptic lineages and Pleistocene population expansion in a Brazilian Cerrado frog
(Wiley-Blackwell, 2012-02-01)
Diversification of South American species endemic to open habitats has been attributed to both Tertiary events and Pleistocene climatic fluctuations. Nonetheless, phylogeographical studies of taxa in these regions are few, ...