Cytogenetic characterization of Partamona cupira (Hymenoptera, Apidae) by fluorochromes

Cytogenetic characterization of Partamona cupira (Hymenoptera, Apidae) by fluorochromes

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Four colonies of click here 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, echofix spring reverb 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.