Habitat heterogeneity favors asexual reproduction in natural populations of grassthrips.

Details

Ressource 1Request a copy Sous embargo indéterminé.
State: Public
Version: Final published version
Serval ID
serval:BIB_B8FBC2F94601
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Habitat heterogeneity favors asexual reproduction in natural populations of grassthrips.
Journal
Evolution
Author(s)
Lavanchy G., Strehler M., Llanos Roman M.N., Lessard-Therrien M., Humbert J.Y., Dumas Z., Jalvingh K., Ghali K., Fontcuberta García-Cuenca A., Zijlstra B., Arlettaz R., Schwander T.
ISSN
1558-5646 (Electronic)
ISSN-L
0014-3820
Publication state
Published
Issued date
2016
Peer-reviewed
Oui
Volume
70
Number
8
Pages
1780-1790
Language
english
Abstract
Explaining the overwhelming success of sex among eukaryotes is difficult given the obvious costs of sex relative to asexuality. Different studies have shown that sex can provide benefits in spatially heterogeneous environments under specific conditions, but whether spatial heterogeneity commonly contributes to the maintenance of sex in natural populations remains unknown. We experimentally manipulated habitat heterogeneity for sexual and asexual thrips lineages in natural populations and under seminatural mesocosm conditions by varying the number of hostplants available to these herbivorous insects. Asexual lineages rapidly replaced the sexual ones, independently of the level of habitat heterogeneity in mesocosms. In natural populations, the success of sexual thrips decreased with increasing habitat heterogeneity, with sexual thrips apparently only persisting in certain types of hostplant communities. Our results illustrate how genetic diversity-based mechanisms can favor asexuality instead of sex when sexual lineages co-occur with genetically variable asexual lineages.
Keywords
Asexuality, evolution of sex, parthenogenesis, Thysanoptera, Tangled Bank
Pubmed
Web of science
Open Access
Yes
Create date
06/06/2016 7:51
Last modification date
20/08/2019 15:27
Usage data