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

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Serval ID
serval:BIB_C0AD9C6473B2
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Adaptation to Abundant Low Quality Food Improves the Ability to Compete for Limited Rich Food in Drosophila melanogaster.
Journal
PLoS One
Author(s)
Vijendravarma R.K., Narasimha S., Kawecki T.J.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Publication state
Published
Issued date
2012
Peer-reviewed
Oui
Volume
7
Number
1
Pages
e30650
Language
english
Abstract
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
Yes
Create date
27/01/2012 15:14
Last modification date
20/08/2019 15:35
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