Hydrocarbon Patterns and Mating Behaviour in Populations of Drosophila yakuba

Insects

Bບtrice Denis¹  Arnaud Le Rouzic¹  Claude Wicker-Thomas² 

[1] Laboratoire Évolution, Génomes, Comportement et Écologie, CNRS, IRD, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette F-91198, France;

关键词: Drosophila yakuba;    cuticular hydrocarbons;    mating behavior;    reproductive isolation;   

DOI  :  10.3390/insects6040897

来源: mdpi

【 摘 要 】

Drosophila yakuba is widespread in Africa. Here we compare the cuticular hydrocarbon (CHC) profiles and mating behavior of mainland (Kounden, Cameroon) and island (Mayotte, Sao-Tome, Bioko) populations. The strains each had different CHC profiles: Bioko and Kounden were the most similar, while Mayotte and Sao-Tome contained significant amounts of 7-heptacosene. The CHC profile of the Sao-Tome population differed the most, with half the 7-tricosene of the other populations and more 7-heptacosene and 7-nonacosene. We also studied the characteristics of the mating behavior of the four strains: copulation duration was similar but latency times were higher in Mayotte and Sao-Tome populations. We found partial reproductive isolation between populations, especially in male-choice experiments with Sao-Tome females.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.