| phylogeographic structure and karyotypic diversity of the brazilian shrew mouse ( blarinomys breviceps, sigmodontinae) in the atlantic forest. | blarinomys breviceps possesses cryptic and burrowing habits with poorly documented genetics and life history traits. due to its rarity, only a few specimens and dna sequences have been deposited in collections worldwide. here, we present the most comprehensive cytogenetic and molecular characterization of this rare genus. phylogenetic analyses based on partial cytochrome b sequences were performed, attempting to establish the relationships among individuals with distinct karyotypes along the geo ... | 2012 | 22907314 |
| helminth metacommunity structure of wild rodents in a preserved area of the atlantic forest, southeast brazil. | the helminth fauna and metacommunity structure of eight sympatric sigmodontine rodents were investigated at the serra dos órgãos national park, an atlantic forest reserve located in the state of rio de janeiro, southeast brazil. rodents of the species abrawayaomys ruschii, akodon montensis, blarinomys breviceps , delomys dorsalis, oligoryzomys flavescens, oligoryzomys nigripes, oxymycterus quaestor and thaptomys nigrita were found infected with helminths. akodon montensis presented the highest t ... | 2019 | 30427522 |
| chromosomal signatures corroborate the phylogenetic relationships within akodontini (rodentia, sigmodontinae). | comparative chromosome-painting analysis among highly rearranged karyotypes of sigmodontinae rodents (rodentia, cricetidae) detects conserved syntenic blocks, which are proposed as chromosomal signatures and can be used as phylogenetic markers. in the akodontini tribe, the molecular topology (cytb and/or irbp) shows five low-supported clades (divisions: "akodon", "bibimys", "blarinomys", "oxymycterus", and "scapteromys") within two high-supported major clades (clade a: "akodon", "bibimys", and " ... | 2020 | 32244440 |