Comparative cytogenetic analysis in the species Uroderma magnirostrum and U. bilobatum (cytotype 2n = 42) (Phyllostomidae, Stenodermatinae) in the Brazilian Amazon
Genet. mol. biol
; Genet. mol. biol;28(2): 248-253, 2005. ilus
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| ID: lil-416293
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BR1.1
RESUMO
The genus Uroderma includes two species U. magnirostrum and U. bilobatum. These species are characterized by their high degree of karyotypic evolution, diverging from most other species of the subfamily Stenodermatinae, which have a lower degree of chromosomic evolution. The present study reports the first banding patterns of U. magnirostrum (G-, C-banding and Ag-NOR) and U. bilobatum (C-banding and Ag-NOR). The chromosomic data in conventional staining of U. magnirostrum (2n = 36, NF = 62) and U. bilobatum (cytotype 2n = 42, NF = 50) are equivalent to that described in the literature. When compared, chromosomal homeologies are found in both karyotypes, as well as differences, confirming that karyotypic evolution in the Uroderma genus is intense. Fission, fusion, inversion or translocation events are required to explain the karyotypic evolution of this genus. The comparison of karyotype, described here, to one of the species of the genus Artibeus (2n = 30/31), suggests that some chromosomic forms are apomorphic and shared between the two species of Uroderma. This confirms the monophyly of the genus, and that U. magnirostrum presents a more primitive karyotype when compared to U. bilobatum.
Texte intégral:
1
Indice:
LILACS
Sujet Principal:
Chiroptera
/
Analyse cytogénétique
Limites du sujet:
Animals
Pays comme sujet:
America do sul
/
Brasil
langue:
En
Texte intégral:
Genet. mol. biol
Thème du journal:
GENETICA
Année:
2005
Type:
Article