Comparative karyology in Akodon (Rodentia, Sigmodontinae) from southeastern Brazil
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چکیده
منابع مشابه
A new karyotype of Oligoryzomys (Sigmodontinae, Rodentia) from central Brazil.
A new karyotype of the genus Oligoryzomys was described for specimens collected in Brazilian Cerrado in Tocantins and Goiás States. Conventional staining, G-, C-banding, and Ag-NOR staining techniques were used for describe this karyotype with 2n=70, AN=74 or 76. The chromosome complement, with the highest diploid number known among Oligoryzomys species, differs from all others previously repor...
متن کاملSystematics of Species of the Genus Akodon (rodentia: Sigmodontinae) in Southeastern Brazil and Implications for the Biogeography of the Campos De Altitude
Faunal inventories of the highest peaks of the Atlantic forests of South America, in the Caparaó and Itatiaia mountain ranges in Southeastern Brazil, have revealed a new community of small mammals. The species making up this community appear to be restricted to the highest altitudinal zones and are found in close association with scattered montane grasslands (campos de altitude). Their phylogen...
متن کاملA new species of Calomys (Rodentia: Sigmodontinae) from Eastern Brazil
On the basis of combined analyses of karyotypic, molecular and morphologic data, we herein describe a new Calomys species collected in a transitional area between the Atlantic Forest and the Cerrado morphoclimatic domains of eastern Brazil. This new taxon differs from all other Brazilian Calomys species by its diploid number (2n=38), the lowest among Brazilian Calomys species, and by its yellow...
متن کاملReproduction, development and growth of Akodon lindberghi (Hershkovitz, 1990) (Rodentia, Muridae, Sigmodontinae) raised in captivity.
The reproduction, development and growth of Akodon lindberghi were studied in captivity. The colony was derived from animals captured in Simão Pereira, Minas Gerais state, which represents a new area of geographical distribution known for this species. Twelve males and twelve females were crossed, producing 144 young in 53 litters. Post-partum oestrus was observed and gestation length was estim...
متن کاملAkodon cursor (Rodentia: Cricetidae)
Akodon cursor (Winge, 1887) is a Sigmodontinae rodent commonly called the cursorial akodont. This small cursorial mouse has homogenous dorsal pelage that can range from dark to golden brown and it is 1 of 41 species in the genus Akodon. It is endemic to Brazil, South America, and is found in the Atlantic Forest, being the most abundant sigmodontine rodent of this large area. Deforestation withi...
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ژورنال
عنوان ژورنال: Journal of Heredity
سال: 1998
ISSN: 0022-1503,1465-7333
DOI: 10.1093/jhered/89.2.158