The relationship between multiple mating by queens, within-colony genetic variability and fitness in the ant Lasius niger

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Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_986DA8A14F3E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
The relationship between multiple mating by queens, within-colony genetic variability and fitness in the ant Lasius niger
Périodique
Journal of Evolutionary Biology
Auteur(s)
Fjerdingstad  E. J., Gertsch  P. J., Keller  L.
ISSN
1010-061X
Statut éditorial
Publié
Date de publication
09/2003
Peer-reviewed
Oui
Volume
16
Numéro
5
Pages
844-53
Notes
Journal Article Research Support, Non-U.S. Gov't --- Old month value: Sep
Résumé
Multiple mating has been suggested to benefit social insect queens because high genetic variation within colonies might decrease the load imposed by sterile diploid males, enhance resistance to parasites and pathogens, and lead to a more effective division of labour and/or a wider range of tolerable environmental conditions. We tested these hypotheses in the ant Lasius niger with three population samples from Switzerland and Sweden. We found no diploid males in young or mature colonies suggesting a lack of diploid male load. Colonies with multiply-mated queens were not larger nor did they produce more sexuals than colonies with singly-mated queens. We did find a significantly lower frequency of multiple mating among newly mated queens than among the queens heading mature colonies in one population sample (Switzerland 1997). However, this result was not repeated in the other study population, or in the following year in the Swiss population.
Mots-clé
Animals *Ants/genetics/physiology Environment *Evolution Female Male Ploidies *Sexual Behavior, Animal *Social Behavior
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/01/2008 19:39
Dernière modification de la notice
20/08/2019 16:00
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