Genetic structure of drone congregation areas of Africanized honeybees in southern Brazil

Autor(es)

Collet, Thais ^[1] ; Cristino, Alexandre Santos ^[2] ; Prada Quiroga, Carlos Fernando ^[1] ; Egea Soares, Ademilson Espencer ^[2] ; Del Lama, Marco Antonio ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Genet & Evolucao, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Sao Paulo, Fac Med Ribeirao Preto, Dept Genet, Ribeirao Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: GENETICS AND MOLECULAR BIOLOGY; v. 32, n. 4, p. 857-863, 2009.
• Citações Web of Science: 3

Resumo

As yet, certain aspects of the Africanization process are not well understood, for example, the reproductive behavior of African and European honeybees and how the first Africanized swarms were formed and spread. Drone congregation areas (DCAs) are the ideal place to study honeybee reproduction under natural conditions since hundreds of drones from various colonies gather together in the same geographical area for mating. In the present study, we assessed the genetic structure of seven drone congregations and four commercial European-derived and Africanized apiaries in southern Brazil, employing seven microsatellite loci for this purpose. We also estimated the number of mother-colonies that drones of a specific DCA originated from. Pairwise comparison failed to reveal any population sub-structuring among the DCAs, thus indicating low mutual genetic differentiation. We also observed high genetic similarity between colonies of commercial apiaries and DCAs, besides a slight contribution from a European-derived apiary to a DCA formed nearby. Africanized DCAs seem to have a somewhat different genetic structure when compared to the European. (AU)

• Processo FAPESP: 00/07996-4 - Aspectos reprodutivos envolvidos no processo de africanização das abelhas Apis mellifera no Brasil
• Beneficiário: Alexandre dos Santos Cristino
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 03/06342-9 - A composição e a estrutura genética das populações de Apis mellifera (Linnaeus, 1758) do Brasil e da América do Sul resultantes do processo de africanização
• Beneficiário: Marco Antonio Del Lama
• Modalidade de apoio: Auxílio à Pesquisa - Regular