Clines in cuticular hydrocarbons in two Drosophila species with independent population histories


Autoria(s): Frentiu, F.D.; Chenoweth, S.F.
Data(s)

01/06/2010

Resumo

We took a comparative approach utilizing clines to investigate the extent to which natural selection may have shaped population divergence in cuticular hydrocarbons (CHCs) that are also under sexual selection in Drosophila. We detected the presence of CHC clines along a latitudinal gradient on the east coast of Australia in two fly species with independent phylogenetic and population histories, suggesting adaptation to shared abiotic factors. For both species, significant associations were detected between clinal variation in CHCs and temperature variation along the gradient, suggesting temperature maxima as a candidate abiotic factor shaping CHC variation among populations. However, rainfall and humidity correlated with CHC variation to differing extents in the two species, suggesting that response to these abiotic factors may vary in a species-specific manner. Our results suggest that natural selection, in addition to sexual selection, plays a significant role in structuring among-population variation in sexually selected traits in Drosophila.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/54087/

Publicador

John Wiley & Sons

Relação

http://eprints.qut.edu.au/54087/1/2012004600.pdf

DOI:10.1111/j.1558-5646.2009.00936.x

Frentiu, F.D. & Chenoweth, S.F. (2010) Clines in cuticular hydrocarbons in two Drosophila species with independent population histories. Evolution, 64(6), pp. 1784-1794.

Fonte

Faculty of Health; Institute of Health and Biomedical Innovation

Palavras-Chave #060000 BIOLOGICAL SCIENCES #Drosophila #natural selection #adaptation
Tipo

Journal Article