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	Provedor de dados Genet. Mol. Biol. (1) Neotropical Ichthyology (1) Autor Carmignotto,Ana Paula (1) Leal-Mesquita,Emygdia Rosa (1) Machado,Taís (1) Marques,Diego Ferreira (1) Rodrigues,Luís Reginaldo Ribeiro (1) Sampaio,Iracilda (1) Santos,Fabíola Araújo dos (1) Silva,Maria José de J. (1) Silva,Simoni Santos da (1) Yonenaga-Yassuda,Yatiyo (1) Mais... Palavra-chave Karyomorph (2) Amazon basin (1) COI (1) Cytogenetics (1) Morphology (1) Proechimys (1) Rodents (1) Species complex (1) Trahiras (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2013 (1) 2005 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Cytogenetic and DNA barcoding reveals high divergence within the trahira, Hoplias malabaricus (Characiformes: Erythrinidae) from the lower Amazon River Neotropical Ichthyology Marques,Diego Ferreira; Santos,Fabíola Araújo dos; Silva,Simoni Santos da; Sampaio,Iracilda; Rodrigues,Luís Reginaldo Ribeiro. Molecular and cytogenetic data have provided evidence of cryptic speciation in the widespread South American trahira, Hoplias malabaricus. In the present study, karyotypes and DNA barcode sequences of specimens from seven populations inhabiting the lower Amazon River were analyzed in order to characterize the levels of genetic divergence within a single karyomorph. All the specimens presented karyotypes with 2n = 40 chromosomes (20m+20sm) that were consistent with the species' C karyomorph. The DNA barcodes revealed six haplogroups, with clear divergence between populations from Brazil and Argentina. The results support the species complex hypothesis and indicate that a single karyomorph of H. malabaricus may harbor more than one species Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon basin; COI; Karyomorph; Species complex; Trahiras. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200459 Nine karyomorphs for spiny rats of the genus Proechimys (Echimyidae, Rodentia) from North and Central Brazil Genet. Mol. Biol. Machado,Taís; Silva,Maria José de J.; Leal-Mesquita,Emygdia Rosa; Carmignotto,Ana Paula; Yonenaga-Yassuda,Yatiyo. Spiny rats of the genus Proechimys are morphologically diverse, widely distributed and have diploid numbers ranging from 2n = 14-16 to 2n = 62. In this paper we present cytogenetical data and brief comments on morphological and biogeographical issues related to spiny rats. In our sample of 42 spiny rats collected from 12 Brazilian Amazonian tropical rainforest and the Cerrado (Brazilian savanna) sites we detected nine karyological entities: four different karyomorphs with 2n = 30, three with 2n = 28, one with 2n = 15 and one with 2n = 44. Based on qualitative morphological characters these karyomorphs can be allocated to five species within the goeldii, guyannensis and longicaudatus species groups. Tipo: Info:eu-repo/semantics/article Palavras-chave: Proechimys; Rodents; Cytogenetics; Karyomorph; Morphology. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000500007 Registros recuperados: 2 Primeira ... 1 ... Última

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