| Full text | |
| Author(s): |
Camila Nascimento Moreira
[1]
;
Camilla Bruno Di-Nizo
[2]
;
Maria José de Jesus Silva
[3]
;
Yatiyo Yonenaga-Yassuda
[4]
;
Karen Ventura
[5]
Total Authors: 5
|
| Affiliation: | [1] Universidade de São Paulo. Instituto de Biociências. Departamento de Genética e Biologia Evolutiva - Brasil
[2] Instituto Butantan. Laboratório de Ecologia e Evolução - Brasil
[3] Instituto Butantan. Laboratório de Ecologia e Evolução - Brasil
[4] Universidade de São Paulo. Instituto de Biociências. Departamento de Genética e Biologia Evolutiva - Brasil
[5] Universidade de São Paulo. Instituto de Biociências. Departamento de Genética e Biologia Evolutiva - Brasil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | GENETICS AND MOLECULAR BIOLOGY; v. 36, n. 2, p. 201-206, 2013-00-00. |
| Abstract | |
Pseudoryzomys simplex, the false rice rat, is a monotypic genus of the Oryzomyini tribe (Sigmodontinae) distributed in part of Bolivia, Paraguay, Argentina and Brazil. Its diploid number has been described as 56 acrocentric chromosomes decreasing in size and no karyotype figure has been depicted. Herein, we present karyotypic data on P. simplex, including chromosome banding and molecular fluorescent in situ hybridization using telomeric sequences and the whole X-chromosome of its sister clade Holochilus brasiliensis (HBR) as probes. A case of remarkable autosomal heteromorphism due to the presence of a whole heterochromatic arm leading to the variability of FN is reported, as well as the occurrence of regions of homology between the X and Y chromosomes (pseudoautosomal regions) after chromosome painting with the HBR X probe on P. simplex metaphases. (AU) | |
| FAPESP's process: | 10/03432-0 - Chromosome evolution on the genus Oligoryzomys (Cricetidae: Sigmodontinae): comparative studies by conventional cytogenetic and chromosome painting |
| Grantee: | Camilla Bruno Di Nizo |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 05/04557-3 - Cytogenetic and molecular studies on neotropical small rodents from Brazil |
| Grantee: | Maria José de Jesus Silva |
| Support Opportunities: | Research Grants - Young Investigators Grants |