Buscar
Mostrando ítems 3081-3090 de 6673
From Amazonia to the Atlantic forest: Molecular phylogeny of Phyzelaphryninae frogs reveals unexpected diversity and a striking biogeographic pattern emphasizing conservation challenges
(Academic Press Inc. Elsevier B.V., 2012-11-01)
Documenting the Neotropical amphibian diversity has become a major challenge facing the threat of global climate change and the pace of environmental alteration. Recent molecular phylogenetic studies have revealed that the ...
Taxonomy and phylogeny of the neotropical fish genus Hemibrycon Günther, 1864 (Ostariophysi: Characiformes: Characidae)
(Pontifícia Universidade Católica do Rio Grande do SulPorto Alegre, 2008)
As espécies do gênero Hemibrycon Günther (1864) são revisadas e redescritas com base na análise do material tipo e exemplares adicionais. Hemibrycon é considerado monofilético e relacionado ao Clado A sensu Malabarba & ...
Molecular phylogeny resolves a taxonomic misunderstanding and places Geisleria close to Absconditella s. str. (Ostropales: Stictidaceae)
(Cambridge University Press, 2014-01-01)
The phylogenetic position of the genus Geisleria and its type species G. sychnogonioides was reconstructed using sequence data of the mitochondrial small subunit (mtSSU), the nuclear large subunit rDNA (nuLSU) and the first ...
Genetic diversity and molecular phylogeny of Anaplasma marginale studied longitudinally under natural transmission conditions in Rio de Janeiro, Brazil
(Elsevier B.V., 2015-01-01)
Anaplasma marginale is the most prevalent tick-borne pathogen in cattle in tropical and subtropical regions of the world. Major Surface Protein 1a (MSP1a) has been found to be a stable genetic marker for identifying A. ...
Molecular phylogeny and hemipenial diversity of South American species of Amerotyphlops (Typhlopidae, Scolecophidia)
(Wiley-Blackwell, 2019-03-01)
Typhlopidae is the most diverse family of Scolecophidia, with 269 species. Amerotyphlops was recently erected within subfamily Typhlopinae and comprises fifteen species distributed from Mexico to Argentina and the southern ...
The phylogeny of the Casque-headed Treefrogs (Hylidae: Hylinae: Lophyohylini)
(Wiley-Blackwell, 2020-03-27)
The South American and West Indian Casque-headed Treefrogs (Hylidae: Hylinae: Lophyohylini) include 85 species. These are notably diverse in morphology (e.g. disparate levels of cranial hyperossification) and life history ...
Molecular phylogeny and diversification timing of the Chamaecrista sect. Absus subsect. Absus ser. Paniculatae, a newly circumscribed and predominantly endemic of the Cerrado Biome group
(Magnolia Press, 2020-05-28)
Chamaecrista is a monophyletic genus, comprises approximately 330 tropical species classified into six sections of which Chamaecrista sect. Absus is the largest of them with 190 species, four subsections, and 31 series. ...
The phylogeny of Dendropsophini (Anura: Hylidae: Hylinae)
(2020-01-01)
The relationships of the hyline tribe Dendropsophini remain poorly studied, with most published analyses dealing with few of the species groups of Dendropsophus. In order to test the monophyly of Dendropsophini, its genera, ...
Phylogeny and divergence times of suckers (Cypriniformes: Catostomidae) inferred from Bayesian total-evidence analyses of molecules, morphology, and fossils
(Peerj Inc, 2018-07-04)
Catostomidae (suckers) is a diverse (76 species) and broadly distributed family of Holarctic freshwater fishes with a rich fossil record and a considerable number (similar to 35%) of threatened and imperiled species. We ...
Taxonomy and phylogeny of Nitella (Charophyceae, Characeae) from Brazil with emphasis on the midwest and southeast regions
(Magnolia Press, 2018-06-15)
The genus Nitella is the most species-rich within the Charales. Brazilian studies on the genus are relatively scarce and consist of floristic surveys, lacking modern and more precise information. This investigation applied ...