Cryptic Species
Mostrando 1-12 de 178 artigos, teses e dissertações.
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1. Molecular assessment of Gymnotus spp. (Gymnotiformes: Gymnotidae) fishing used as live baitfish in the Tietê River, Brazil
RESUMO A captura de iscas-vivas para a pesca esportiva constitui uma atividade importante em comunidades de pescadores. As principais espécies utilizadas para este propósito pertencem ao gênero Gymnotus, o qual compreende inúmeras espécies de natureza críptica que dificulta a identificação baseada na morfologia externa. Os objetivos deste trabalho fo
Neotrop. ichthyol.. Publicado em: 25/11/2019
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2. Molecular characterization and genetic relationships of seven piranha species of the genera Serrasalmus and Pygocentrus (Characiformes: Serrasalmidae) from Paraná-Paraguay, São Francisco and Tocantins River basins in Brazil
Resumo Relações genéticas e filogenéticas de sete espécies de piranhas dos gêneros Serrasalmus e Pygocentrus das bacias hidrográficas Paraná-Paraguai, São Francisco e Tocantins foram avaliadas com base em sequências parciais dos genes mitocondriais Citocromo b e Citocromo c Oxidase I. Foram realizadas análises filogenéticas de Máxima Verossimilh
Braz. J. Biol.. Publicado em: 25/11/2019
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3. [PROVISIONAL] Genetic evidence for a species complex within the piranha Serrasalmus maculatus (Characiformes, Serrasalmidae) from three Neotropical River basins based on mitochondrial DNA sequences
Abstract Mitochondrial molecular markers (DNA sequences of D-loop, cytochrome b and cytochrome c oxidase I) were employed to characterize populations of the piranha Serrasalmus maculatus from Upper Paraná, Upper Paraguay and Tocantins River basins. D-loop sequences of S. maculatus population from Paraná-Paraguay River basin exhibited tandem repeats of shor
Genet. Mol. Biol.. Publicado em: 22/08/2019
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4. Molecular validation of anthropophilic Phlebotominae sandflies (Diptera: Psychodidae) in Central Panama
Six Phlebotominae sand fly species are incriminated as biological vectors of human pathogens in Panama, but molecular corroboration is still needed. We aim at confirming the identity of Phlebotominae species documented as anthropophilic in Panama. Adult sandflies were collected from August 2010 to February 2012 in Central Panama using CDC light traps. Specie
Mem. Inst. Oswaldo Cruz. Publicado em: 15/08/2019
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5. Whole-genome duplication and hemoglobin differentiation traits between allopatric populations of Brazilian Odontophrynus americanus species complex (Amphibia, Anura)
Abstract Two allopatric populations of Brazilian diploid and tetraploid Odontophrynus americanus species complex, both from São Paulo state, had their blood hemoglobin biochemically analyzed. In addition, these specimens were cytogenetically characterized. Biochemical characterization of hemoglobin expression showed a distinct banding pattern between the al
Genet. Mol. Biol.. Publicado em: 27/06/2019
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6. An integrated approach clarifies the cryptic diversity in Hypostomus Lacépède 1803 from the Lower La Plata Basin
Abstract Abstract: Hypostomus commersoni Valenciennes 1836, Hypostomus cordovae (Günther 1880) and Hypostomus laplatae (Eigenmann 1907) have been little studied since their original descriptions. This study shows a comprehensive review of these species from the Lower La Plata Basin, including their taxonomic history, distribution, color patterns, morphology
An. Acad. Bras. Ciênc.. Publicado em: 25/04/2019
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7. The South American and Australian percichthyids and perciliids. What is new about them?
ABSTRACT A study including morphological characters and mitogenomics of South American and Australian fishes previously assigned to Percichthyidae was conducted. Results generated from these different data sets reveal major disagreements concerning the content and interpretation of the so-called percichthyids. A phylogenetic analysis based on 54 morphologica
Neotrop. ichthyol.. Publicado em: 25/04/2019
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8. Functional specialization and phenotypic generalization in the pollination system of an epiphytic cactus
ABSTRACT Plant-pollinator interactions range from obligatory specialists to facultative generalists, and floral morphology and pollination system may not match completely. The floral biology, reproductive system and floral visitors of a species of the tribe Rhipsalideae were investigated with a focus on the consistency between the pollination system and the
Acta Bot. Bras.. Publicado em: 19/03/2018
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9. Paracoccidioidomycosis due to Paracoccidioides brasiliensis S1 plus HIV co-infection
BACKGROUND Paracoccidioidomycosis (PCM) is one of the most important systemic mycoses in Latin America and the leading fungal cause of mortality in non-immunosuppressed individuals in Brazil. However, HIV/PCM co-infection can increase the clinical severity in these co-infected patients. This co-infection is rarely reported in the literature mainly because o
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-03
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10. Diversity and conservation status of Aegla spp. (Anomura, Aeglidae): an update
Abstract The speciose genus Aegla Leach, 1820 is the only valid extant genus of the anomuran family Aeglidae, bearing 83 known species. This diversity may be even greater since there is some evidence for cryptic speciation. The genus is endemic to southern South America, occurring in freshwater habitats. We assessed the conservation status of 82 species of A
Nauplius. Publicado em: 27/04/2017
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11. Molecular evidence of two cryptic species of Stramonita (Mollusca, Muricidae) in the southeastern Atlantic coast of Brazil
Abstract Snails of the genus Stramonita are commonly found in the rocky intertidal habitat of the western Atlantic Ocean coast. They belong to a monophyletic taxon that occurs along the tropical and warm-temperate Atlantic and eastern Pacific rocky shores. This genus comprises different valid species and members of the S. haemastoma complex. In the present s
Genet. Mol. Biol.. Publicado em: 07/07/2016
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12. Can sibling species of the Drosophila willistoni subgroup be recognized through combined microscopy techniques?
ABSTRACT In several arthropod groups, male genitalia is the most important feature for species identification, especially in cryptic species. Cryptic species are very common in the Drosophila genus, and the Neotropical Drosophila willistoni species group is a good example. This group currently includes 24 species divided into three subgroups: alagitans, boca
Rev. Bras. entomol.. Publicado em: 2015-12