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

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

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<img border=0 src="../../../../../../../img/revistas/gmb/2010nahead/ah06a04CarM.gi...

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Bibliographic Details
Main Authors: Jefferson de Brito Marthe, Silvia das Graças Pompolo, Lucio Antônio de Oliveira Campos, Tânia Maria Fernandes Salomão, Mara Garcia Tavares
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2010-01-01
Series:Genetics and Molecular Biology
Subjects:
B chromosome
SCAR
stingless bees
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200009
Description
Summary: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<img border=0 src="../../../../../../../img/revistas/gmb/2010nahead/ah06a04CarM.gif" align=absmiddle>+2<img border=0 src="../../../../../../../img/revistas/gmb/2010nahead/ah06a04CarA.gif" align=absmiddle>). 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.
ISSN:1415-4757
1678-4685

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