| Texto completo | |
| Autor(es): |
Andrade, Aline C. R.
[1]
;
Miranda, Elder A.
[2]
;
Del Lama, Marco A.
[2]
;
Nascimento, Fabio S.
[1]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Biol, Lab Comportamento Ecol Insetos Sociais, Ave Bandeirantes 3900, Ribeirao Preto, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Genet & Evolucao, Lab Genet Evolut Himenopteros, BR-13560 Sao Carlos, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SCIENTIFIC REPORTS; v. 6, MAY 23 2016. |
| Citações Web of Science: | 8 |
| Resumo | |
Animal societies exhibit remarkable variation in their breeding strategies. Individuals can maximize their fitness by either reproducing or by helping relatives. Social hymenopterans have been key taxa for the study of Hamilton's inclusive fitness theory because the haplodiploid sex-determination system results in asymmetric relatedness among breeders producing conflict over the partitioning of reproduction. In small cooperative groups of insects, totipotent individuals may maximize their inclusive fitness by controlling reproduction despotically rather than helping their relatives. Here, we demonstrate that the dominant females of the primitively eusocial bee Euglossa melanotricha (Apidae: Euglossini) control reproduction, but concede part of the reproductive output with their related and unrelated subordinates. As expected, a dominant female capitalizes on the direct reproduction of related subordinates, according to her interests. We found that reproductive skew was positively correlated with relatedness. The concessions were highly reduced in mother-daughter and sibling nests (relatedness r +/- s.d. = 0.54 +/- 0.02 and 0.79 +/- 0.02, respectively) but much more egalitarian in unrelated associations (r = -0.10 +/- 0.01). We concluded that reproductive skew in these primitively eusocial bees is strongly related to the genetic structure of associations, and also that females are able to assess pairwise relatedness, either directly or indirectly, and use this information to mediate social contracts. (AU) | |
| Processo FAPESP: | 11/21501-2 - Genética das populações de abelhas e o vortex de extinção dos himenópteros |
| Beneficiário: | Marco Antonio Del Lama |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 12/23342-1 - Colonização e dispersão em sítios de ocorrência e a genética das populações de Partamona rustica (Hymenoptera: Apidae: Meliponini) |
| Beneficiário: | Elder Assis Miranda |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 10/19490-0 - Estrutura genética e sócio-etológica de Euglossa melanotricha Moure, 1967 (Hymenoptera, Apidae, Euglossini) mediada por sinalização química e relações de parentesco intra-colonial |
| Beneficiário: | Aline Candida Ribeiro Andrade e Silva |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 10/10027-5 - Mediação comportamental, sinalização química e aspectos fisiológicos reguladores da organização social em himenópteros |
| Beneficiário: | Fábio Santos do Nascimento |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |