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Titolo:
Population structure and mating biology of 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, Inst Ecol ZEA, CH-1015 Lausanne, Switzerland Univ LausanneLausanne 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:
MOLECULAR ECOLOGY
fascicolo: 11, volume: 9, anno: 2000,
pagine: 1835 - 1841
SICI:
0962-1083(200011)9:11<1835:PSAMBO>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
ARID-ZONE ANT; GENE FLOW; REPRODUCTIVE SUCCESS; F-STATISTICS; HYMENOPTERA; DIFFERENTIATION; RELATEDNESS; FORMICIDAE; EVOLUTION; NUMBER;
Keywords:
ants; budding; mating frequency; outbreeding; polygyny; population viscosity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Giraud, T Univ Paris 13, Lab Ethol Expt & Comparee, Ave JB Clement, F-93430 Villetaneuse, France Univ Paris 13 Ave JB Clement Villetaneuse France F-93430 France
Citazione:
T. Giraud et al., "Population structure and mating biology of the polygynous ponerine ant Gnamptogenys striatula in Brazil", MOL ECOL, 9(11), 2000, pp. 1835-1841

Abstract

Gnamptogenys striatula is a polygynous ponerine ant, whose colonies contain either several differentiated queens or several gamergates. Population structure, queen mating frequency and deviation from random mating were investigated in a north-eastern Brazilian population. Eight workers from each of33 queenright colonies and 17 queens and their progeny (20-40 offspring) were genotyped using eight variable microsatellite markers. Population differentiation tests indicated limited gene now at the scale of several kilometres, and tests of isolation by distance revealed population viscosity at the scale of a few metres. This population structure, together with the frequent colony migrations and fissions observed in the field, suggest that new nests are founded by budding in G. striatula. Genetic data showed that 13 of our 17 queens were single-mated and four were double-mated. The estimation of the range of maximal frequency of double-mated queens in the population was 0.232-0.259, demonstrating that mating frequency is low in G. striatula. The low estimated mean relatedness between the 17 queens and their mates (-0.04 +/- 0.49) indicated no evidence of inbreeding in G, striatula.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 01:29:23