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| Bonvicino,Cibele R.; Casado,Flávia; Weksler,Marcelo. |
| Cerradomys is a Neotropical genus of cricetid rodents with seven recognized species, Cerradomys subflavus, C. maracajuensis, C. marinhus, C. scotti, C. langguthi, C. vivoi, and C. goytaca. Species of the genus are distributed throughout the open vegetation belt across South America, from northeastern and southeastern Atlantic coast of Brazil to eastern Paraguay and Western Bolivia. Here we describe a new species of Cerradomys from the state of Tocantins in Central Brazil, based on morphological, karyological and mitochondrial DNA analyses. This species is characterized by a medium body size and long tail, dense dorsal pelage, overall dorsal color gray olive lined with yellow, color of head and dorsum continuous, ventral body color slightly yellowish, skull... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Cerrado; Karyotype; Phylogeny; Sigmodontinae. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000600002 |
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| González-Ittig,Raul E.; Kandel,Narayan P.; Bonvicino,Cibele R.; Salazar-Bravo,Jorge. |
| ABSTRACT The nominal species Calomys tener (Winge, 1887) ranges broadly in open lands of the Caatinga, Cerrado, Pantanal and Mata Atlântica of Brazil, and was recently reported from the Pampas of southern Brazil, and in the Selva Paranaense of eastern Paraguay and northeastern Argentina. This rodent can be infected with the pathogenic Araraquara hantavirus in Brazil. Given that most epidemiological studies have not taken into account updated taxonomic findings of their rodent hosts, in this study, we obtained sequence data of the Cyt-b and COI genes of specimens of C. tener from 22 different geographical localities from throughout the currently known distribution of the species (including individuals from Argentina, Paraguay, Bolivia, and Brazil) to test... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cyt-b; Phylogenetic relationships; South America. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100311 |
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| Faria,Michel B.; Siqueira,Moisés L.G.; Bonvicino,Cibele R.. |
| ABSTRACT The arboreal echimyid rodent of the genus Phyllomys Lund, 1839 is found in the eastern Brazilian Atlantic forest, from the state of Ceará to the state of Rio Grande do Sul, reaching the São Francisco and Paraná river basins in the west. There are 13 species in the genus. Phyllomys lundi Leite, 2003, which until now was known from only two localities, is one of the four endemic Atlantic Forest species of Phyllomys with very restricted distribution. We provide additional data on the morphology, distribution and phylogeography (based on cytochrome b sequences) of the rare P. lundi . Our new record broadens the northern limit of the distribution P. lundi by approximately 250 km with respect to previous records. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Echimyidae; Geographic distribution; Lund's Atlantic tree rat. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000404000 |
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| Almeida,Francisca C.; Moreira,Miguel A.M.; Bonvicino,Cibele R.; Cerqueira,Rui. |
| Random amplified of polymorphic DNA (RAPD) analysis was used to assess genetic distance and the genetic structure of populations of Nectomys squamipes, a semiaquatic rodent species distributed along watercourses. DNA samples of five populations were analyzed using three primers, producing 45 scorable bands, 31 of which were polymorphic. There was a significant differentiation among populations [F ST = 0.17; phiST = 0.14 (P < 0.004)] but gene flow (Nm = 1.25) was sufficient to overcome genetic drift effects. No fixed specific markers were found for any population. The Mantel's test and UPGMA cluster analysis showed a lack of relationship between genetic and geographic distances. The apparent homogeneity indicated by RAPD markers coincided with... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000400014 |
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| Bonvicino,Cibele R.; Fernandes,Fabiano A.; Viana,Maria C.; Bernardo,R. Teixeira; D'Andrea,Paulo S.. |
| The swamp rats are distributed in Argentina, southern Paraguay, Uruguay and southern Brazil, with two species currently accepted: Scapteromys aquaticus Thomas, 1920 and Scapteromys tumidus Waterhouse, 1837. While S. aquaticus occurs in Argentina, Paraguay and western Uruguay, S. tumidus occurs in Brazil and Uruguay. Here we report for the first time the occurrence of S. aquaticus in gallery forest remnants in Southern Brazil. Karyologic analysis showed 2n = 32 and FNa = 40. Phylogenetic analyses, based on DNA sequences from the mitochondrial cytochrome-b gene indicate that the Brazilian and the Argentinian specimens of S. aquaticus shared one haplotype, while median joining analysis showed lack of population structure. This register, plus the karyotype... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: New record; Southern Brazil; Species limits; Swamp rat. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200016 |
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