Adaptation to Abundant Low Quality Food Improves the Ability to Compete for Limited Rich Food in Drosophila melanogaster.

Détails

Ressource 1Télécharger: BIB_C0AD9C6473B2.P001.pdf (136.82 [Ko])
Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_C0AD9C6473B2
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Adaptation to Abundant Low Quality Food Improves the Ability to Compete for Limited Rich Food in Drosophila melanogaster.
Périodique
PLoS One
Auteur(s)
Vijendravarma R.K., Narasimha S., Kawecki T.J.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
7
Numéro
1
Pages
e30650
Langue
anglais
Résumé
The rate of food consumption is a major factor affecting success in scramble competition for a limited amount of easy-to-find food. Accordingly, several studies report positive genetic correlations between larval competitive ability and feeding rate in Drosophila; both become enhanced in populations evolving under larval crowding. Here, we report the experimental evolution of enhanced competitive ability in populations of D. melanogaster previously maintained for 84 generations at low density on an extremely poor larval food. In contrast to previous studies, greater competitive ability was not associated with the evolution of higher feeding rate; if anything, the correlation between the two traits across lines tended to be negative. Thus, enhanced competitive ability may be favored by nutritional stress even when competition is not intense, and competitive ability may be decoupled from the rate of food consumption.
Pubmed
Web of science
Open Access
Oui
Création de la notice
27/01/2012 16:14
Dernière modification de la notice
09/05/2019 0:43
Données d'usage