Afficher la couverture 'Looking under the lamp post: neither fruitless nor doublesex has evolved to generate divergent male courtship in Drosophila | Cande, Jessica' en grand format
/5

0 avis

Looking under the lamp post: neither fruitless nor doublesex has evolved to generate divergent male courtship in Drosophila

Archive ouverte

Cande, Jessica | Stern, David L. | Morita, Tomoko | Prud’homme, Benjamin | Gompel, Nicolas

Edité par CCSD ; Elsevier Inc -

International audience. How do evolved genetic changes alter the nervous system to produce different patterns of behavior? We address this question using Drosophila male courtship behavior, which is innate, stereotyped, and evolves rapidly between species. D. melanogaster male courtship requires the male-specific isoforms of two transcription factors, fruitless and doublesex. These genes underlie genetic switches between female and male behaviors, making them excellent candidate genes for courtship behavior evolution. We tested their role in courtship evolution by transferring the entire locus for each gene from divergent species to D. melanogaster. We found that despite differences in Fru+ and Dsx+ cell numbers in wild-type species, cross-species transgenes rescued D. melanogaster courtship behavior and no species-specific behaviors were conferred. Therefore, fru and dsx are not a significant source of evolutionary variation in courtship behavior.

Suggestions

Du même auteur

Smells like evolution: the role of chemoreceptor evolution in behavioral change.

Archive ouverte | Cande, Jessica | CCSD

International audience. In contrast to physiology and morphology, our understanding of how behaviors evolve is limited. This is a challenging task, as it involves the identification of both the underlying genetic ba...

Evolution of multiple additive loci caused divergence between Drosophila yakuba and D. santomea in wing rowing during male courtship

Archive ouverte | Cande, Jessica | CCSD

International audience. In Drosophila, male flies perform innate, stereotyped courtship behavior. This innate behavior evolves rapidly between fly species, and is likely to have contributed to reproductive isolation...

Evolution: return of the ant supersoldiers.

Archive ouverte | Prud’homme, Benjamin | CCSD

International audience. An ancient developmental potential to form 'supersoldiers' facilitates the recurrent evolution of this subcaste in various species of Pheidole ants.

Chargement des enrichissements...