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Occurrence of B chromosomes in Tetragonisca Latreille, 1811 (Hymenoptera, Apidae, Meliponini): a new contribution to the cytotaxonomy of the genus

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dc.contributor.author Pompolo, Silvia das Graças
dc.contributor.author Fernandes, Anderson
dc.contributor.author Barth, Adriane
dc.contributor.author Costa, Marco Antônio
dc.date.accessioned 2019-06-24T11:33:47Z
dc.date.available 2019-06-24T11:33:47Z
dc.date.issued 2011
dc.identifier.issn 1678-4685
dc.identifier.uri http://dx.doi.org/10.1590/S1415-47572010005000100
dc.identifier.uri http://locus.ufv.br//handle/123456789/25913
dc.description.abstract Tetragonisca angustula and Tetragonisca fiebrigi have recently been listed as valid species. This study aimed to cytogenetically investigate both species, emphasizing the new registry of B chromosomes in the tribe Meliponini. We analyzed colonies of T. angustula and T. fiebrigi collected at Tangará da Serra, Mato Grosso, Brazil, through conventional Giemsa staining, C-banding, and base-specific fluorochrome staining (CMA3/DAPI). T. angustula showed 2n = 34 chromosomes in females and n = 17 in males, with karyotype formula 2K = 34AM. T. fiebrigi showed numeric variation, with chromosome number varying from 2n = 34 to 2n = 36 in females and from n = 17 to n=18in males, with karyotype formula 2K = 32AM+2AMc and 2K = 32AM+2AMc + 1 or 2 B-chromosomes. The B chromosomes are heterochromatic. In T. fiebrigi, the CMA3/DAPI staining revealed four chromosomes with a CMA3 positive band. All individuals from the same colony showed the same number of B chromosomes. T. angustula and T. fiebrigi showed karyotype divergence, principally due to the presence of B chromosomes, which are found only in T. fiebrigi. Our data corroborate the status of valid species for both T. angustula and T. fiebrigi, as recently proposed. en
dc.format pdf pt-BR
dc.language.iso eng pt-BR
dc.publisher Genetics and Molecular Biology pt-BR
dc.relation.ispartofseries v. 34, n. 01, p. 77- 79, 2011 pt-BR
dc.rights Open Access pt-BR
dc.subject Stingless bees pt-BR
dc.subject Cytogenetics pt-BR
dc.subject Interspecific differentiation pt-BR
dc.subject B chromosomes pt-BR
dc.title Occurrence of B chromosomes in Tetragonisca Latreille, 1811 (Hymenoptera, Apidae, Meliponini): a new contribution to the cytotaxonomy of the genus en
dc.type Artigo pt-BR


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  • Artigos [704]
    Artigos Técnico-científicos na área de Biologia Geral

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