AnÃlise citogÃnetica comparativa entre Glossophaga soricina, Platyrrhinus lineatus e Sturnira lilium (Phyllostomidae, Chiroptera)

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Mitotic chromosomes of Glossophaga soricina (2n=32,XY; NF=60), Platyrrhinus lineatus and Sturnira lilium (2n=30,XY; NF=56) were analyzed through the conventional staining, C-banding, silver nitrate impregnation (AgNO3) and base-specific fluorochromes. Data of the conventional analysis obtained from the three species are in agreement with those described in the literature, except for the morphology of the Y chromosome of P. lineatus, indicating geographical chromosomal variation for the species. The blocks of CH in the distal region of the short arm of 5, 6, 7 and X chromosomes, observed by the C-banding, in P. lineatus and S. lilium, besides the differential staining in the long arm of the X chromosome of Sturnira lilium correspond a pattern shared by some representatives of Stenodermatinae. The weak marking CMA3+ in the pericentromeric and distal heterochromatic regions of some chromosomes indicate a predominant association of heterochromatin with GC-rich sequences. However, the differential patterns obtained with the base-specific fluorochromes confirmed the heterogeneity of CH to its composition (AT- and/or GC-rich) and proved differential characteristics of the intergenic sequences associated to NORs (positive CMA3, negative or without specificity) in representatives of Phyllostomidae

ASSUNTO(S)

dapi agno3 dapi cma3 agno3 genetica phyllostomidae phyllostomidae bandeamento c cma3 c-banding

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