| Texto completo | |
| Autor(es): |
Lopes, Iara F.
[1, 2]
;
Mino, Carolina I.
[1]
;
Rocha, Cristiano D.
[1]
;
Oliveira, Dalci M. M.
[3]
;
Del Lama, Silvia N.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Fed Sao Carlos, Dept Genet & Evolucao, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Joao del Rei, Dept Zootecnia, BR-36301360 Sao Joao Del Rei, MG - Brazil
[3] Univ Fed Mato Grosso, Dept Biol & Zool, BR-78090060 Cuiaba, MT - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Genetica; v. 141, n. 4-6, p. 195-203, JUN 2013. |
| Citações Web of Science: | 6 |
| Resumo | |
The present study inferred the genetic mating system in a natural breeding population of the Jabiru Stork (Jabiru mycteria), a Neotropical wading bird considered endangered in part of its distribution range. Based on data from eight microsatellite loci, maximum-likelihood kinship reconstruction techniques, parentage assignment analyses and effective population size (Ne) estimates were applied to samples collected in the Brazilian Pantanal wetland (N = 45 nestlings from 20 nests; N = 17 shed adult feathers from 11 nests). The relationship diagnosis was determined for most of the complete clutches (86.66 %): 92.31 % were full siblings and 7.69 % were half siblings. Shed feathers collected from the nests matched the genetic parents of the offspring in 80 % of cases. Feathers collected from the ground below the nests were compatible with the putative parents in 41.67 % of cases. A mean Ne of 35 reproductive individuals was inferred, corresponding to an Ne/Nc ratio of 0.09, which is similar to the ratio found in populations of a number of different wild animals. The higher proportion of full siblings identified in the broods suggests that genetic monogamy is the prevalent mating system in the Jabiru Stork, while the detection of half siblings suggests some degree of extra-pair paternity. The present findings are in agreement with previous ecological observations of social monogamy in this species, despite the isolated evidence of extra-pair copulation events. This study also demonstrates the usefulness of a noninvasive approach to sampling adults and performing parentage and relatedness analyses in an elusive, threatened species. (AU) | |
| Processo FAPESP: | 10/52315-7 - Predadores de topo de cadeia alimentar |
| Beneficiário: | Pedro Manoel Galetti Junior |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOTA - Regular |
| Processo FAPESP: | 10/50406-5 - Colonização do continente americano pelas populações africanas de garça-vaqueira (Bubulcus ibis): a genética desvendando o processo de bioinvasão |
| Beneficiário: | Silvia Nassif Del Lama |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 04/15205-8 - Genética de populações de Ciconiiformes (Aves) em áreas úmidas brasileiras |
| Beneficiário: | Silvia Nassif Del Lama |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |