Tosta VC, Tavares MG, Fernandes-Salomão TM, Barros EG, Campos LAO, Camacho JPM. Development of a SCAR marker for the analysis of B chromosome presence in Partamona helleri (Hymenoptera, Apidae).
Cytogenet Genome Res 2007;
116:127-9. [PMID:
17268190 DOI:
10.1159/000097430]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2006] [Accepted: 09/08/2006] [Indexed: 11/19/2022] Open
Abstract
Chromosomes in hymenopteran insects cannot currently be analysed in adult individuals. The only available cytogenetic techniques need to be performed in larvae. Here we develop and implement a SCAR (Sequence Characterized Amplified Region) marker, associated with B chromosomes in the bee Partamona helleri, which has proven to be very useful to reveal B chromosome presence in adults from natural populations. The marker was tested in ten different colonies simultaneously analysed by both molecular (ten adults per colony) and cytogenetic (20 larvae per colony) techniques. The presence of the SCAR marker always showed the same pattern as B chromosome presence: both were present or absent in all individuals from a same colony, or both were present in only part of the individuals from a same colony. This molecular marker is thus a useful tool for analysing new aspects of this B chromosome system such as B frequency and geographical distribution, B transmission, or B effects in adult individuals.
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