Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/17897
Título: Variations of chromosomal structures in Caluromys philander (Didelphimorphia: Didelphidae) from the Amazon region
Autor: Souza, Érica Martinha Silva de
Silva, Carlos Eduardo Faresin e
Eler, Eduardo Schmidt
Silva, Maria Nazareth Ferreira da
Feldberg, Eliana
Palavras-chave: Rna 18s
Animals
Chromosome Inversion
Diploidy
Ecosystem
Female
Polymorphism, Genetic
Genetics
Opossum
Population
Telomere
X Chromosome
Animal
Chromosome Inversion
Didelphis
Diploidy
Ecosystem
Female
Polymorphism, Genetic
Population
Rna, Ribosomal, 18s
Telomere
X Chromosome
Animalsia
Caluromys
Caluromys Lanatus
Caluromys Philander
Didelphidae
Didelphimorphia
Metatheria
Data do documento: 2013
Revista: Genetica
Encontra-se em: Volume 141, Número 1-3, Pags. 89-93
Abstract: Caluromys is considered to be one of the most ancient genera of extant marsupials and is positioned among the basal taxa of the family Didelphidae. At least two species occur in Brazil, C. philander and C. lanatus, both of which have 2n = 14 chromosomes. For the first time, we present evidence of an intrapopulation polymorphism of the sexual chromosome pair in C. philander females from the Central Amazon region. Detailed cytogenetic results of animals from three localities on the Amazon region were analyzed using classical cytogenetics (NOR, C-Band and G-Band) and molecular techniques (18S rDNA and telomere probes). Similar to other conspecific individuals, the diploid number of these animals is 2n = 14, and their fundamental number is 24, with NOR present on the 6th autosomal pair. The X chromosome presented variation detectable by G banding, suggesting a pericentric inversion. © 2013 Springer Science+Business Media Dordrecht.
DOI: 10.1007/s10709-013-9708-7
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