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

Genetics and Molecular Biology

Jefferson De Brito Marthe¹  Silvia Das Graças Pompolo¹  Lucio Antônio De Oliveira Campos¹  Tânia Maria Fernandes Salomão¹  Mara Garcia Tavares¹ 

[1] ,Universidade Federal de Viçosa Departamento de Biologia Geral

关键词: B chromosome;    SCAR;    stingless bees;   

DOI  :  10.1590/S1415-47572010005000029

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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