Cytogenetic characterization of Partamona cupira (Hymenoptera, Apidae) by fluorochromes
Genet. mol. biol
; 33(2): 253-255, 2010. ilus
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| ID: lil-548809
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ABSTRACT
Four colonies of the stingless bee Partamona cupira (Hymenoptera Apidae) were cytogenetically analyzed using conventional staining and the fluorochromes CMA3 e DAPI. The females have 2n = 34 chromosomes (2K=32+2). Some females, however, presented an additional large B acrocentric chromosome, to a total of 2n = 35. Chromosome B and the chromosomal pairs 2, 9 and 10 showed CMA3+ bands, indicating an excess of CG base-pairs. A clear association was verified between the P. helleri B chromosome SCAR marker and the presence of a B chromosome in P. cupira. The data obtained suggests that B chromosomes in P. helleri and P. cupira share a common origin.
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Revista:
Genet. mol. biol
Asunto de la revista:
GENETICA
Año:
2010
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Article