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Titolo:
Parentage assignment and extra-group paternity in a cooperative breeder: the Seychelles warbler (Acrocephalus sechellensis)
Autore:
Richardson, DS; Jury, FL; Blaakmeer, K; Komdeur, J; Burke, T;
Indirizzi:
Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England Univ Sheffield Sheffield S Yorkshire England S10 2TN S Yorkshire, England Univ Groningen, Zool Lab, NL-9750 AA Haren, Netherlands Univ Groningen Haren Netherlands NL-9750 AA L-9750 AA Haren, Netherlands
Titolo Testata:
MOLECULAR ECOLOGY
fascicolo: 9, volume: 10, anno: 2001,
pagine: 2263 - 2273
SICI:
0962-1083(200109)10:9<2263:PAAEPI>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTRASPECIFIC BROOD PARASITISM; GREAT REED WARBLER; PAIR PATERNITY; INBREEDING AVOIDANCE; NEST PARASITISM; FAIRY-WRENS; BIRDS; DNA; ARUNDINACEUS; POPULATIONS;
Keywords:
cooperative breeding; extra-pair paternity; likelihood analysis; microsatellite; parentage;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: Richardson, DS Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, SYorkshire, England Univ Sheffield Sheffield S Yorkshire England S10 2TN gland
Citazione:
D.S. Richardson et al., "Parentage assignment and extra-group paternity in a cooperative breeder: the Seychelles warbler (Acrocephalus sechellensis)", MOL ECOL, 10(9), 2001, pp. 2263-2273

Abstract

We describe the development and initial application of a semiautomated parentage testing system in the Seychelles warbler (Acrocephalus sechellensis). This system used fluorescently labelled primers for 14 polymorphic microsatellite loci in two multiplex loading groups to genotype efficiently over 96% of the warbler population on Cousin island. When used in conjunction with the program cervus, this system provided sufficient power to assign maternity and paternity within the Seychelles warbler, despite the complications associated with its cooperative breeding system and a relatively low level of genetic variation. Parentage analyses showed that subordinate 'helper'females as well as the dominant 'primary' females laid eggs in communal nests, indicating that the Seychelles warbler has an intermediate level of female reproductive skew, in between the alternative extremes of helper-at-the-nest and joint nesting systems. Forty-four per cent of helpers bred successfully, accounting for 15% of all offspring. Forty per cent of young resulted from extra-group paternity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 04:00:08