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Titolo:
High genetic relatedness among nestmate queens in the polygynous ponerine ant Gnamptogenys striatula in Brazil
Autore:
Giraud, T; Blatrix, R; Poteaux, C; Solignac, M; Jaisson, P;
Indirizzi:
Univ Paris 13, Lab Ethol Expt & Comparee, F-93430 Villetaneuse, France Univ Paris 13 Villetaneuse France F-93430 , F-93430 Villetaneuse, France Univ Lausanne, IEZEA, CH-1015 Lausanne, Switzerland Univ Lausanne Lausanne Switzerland CH-1015 CH-1015 Lausanne, Switzerland CNRS, Lab Populat Genet & Evolut, F-91198 Gif Sur Yvette, France CNRS GifSur Yvette France F-91198 volut, F-91198 Gif Sur Yvette, France
Titolo Testata:
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
fascicolo: 2-3, volume: 49, anno: 2001,
pagine: 128 - 134
SICI:
0340-5443(200101)49:2-3<128:HGRANQ>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
REPRODUCTIVE SKEW; SOCIAL INSECTS; KIN SELECTION; NUMBER; COLONIES; HYMENOPTERA; INDIVIDUALS; LONGEVITY; TURNOVER; MARKERS;
Keywords:
Gnamptogenys striatula; microsatellites; ants; polygyny; relatedness;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Jaisson, P Univ Paris 13, Lab Ethol Expt & Comparee, Ave JB Clement, F-93430 Villetaneuse, France Univ Paris 13 Ave JB Clement Villetaneuse France F-93430 rance
Citazione:
T. Giraud et al., "High genetic relatedness among nestmate queens in the polygynous ponerine ant Gnamptogenys striatula in Brazil", BEHAV ECO S, 49(2-3), 2001, pp. 128-134

Abstract

Gnamptogenys striatula is a polygynous ant species, in which all workers are potentially able to mate. The reproductive status, relatedness and pedigree relationships among nestmate queens and winged females in a Brazilian population were investigated. We collected all the sexual females of 12 colonies (2-44 queens per colony, plus 2-18 winged females in 3 colonies), Dissections revealed that 98% of the queens were inseminated and that the queens in the most polygynous colonies did not lay equal numbers of eggs. The sexual females and a sample of the population were genotyped using eight microsatellite markers. Relatedness among nestmate queens was among the highestrecorded to date (0.65+/-0.25), and tests of pedigree relationship showed that they were likely to be full-sisters, and sometimes cousins. Mated winged females were always full-sisters, the estimated genetically effective queen numbers were low and tests of pedigree relationship showed that only a few queens in the colony could be the mothers. These re suits suggest that the high queen-queen relatedness in polygynous colonies of G. striatula is maintained by an unusual mechanism: winged females are mostly produced by only one or a few queens, and these groups of full-sisters are recruited back into their original nest after mating.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 23:20:24