Evolution of Mechanisms that Control Mating in Drosophila Males.
Cell Rep
; 27(9): 2527-2536.e4, 2019 05 28.
Article
in En
| MEDLINE
| ID: mdl-31141679
Genetically wired neural mechanisms inhibit mating between species because even naive animals rarely mate with other species. These mechanisms can evolve through changes in expression or function of key genes in sensory pathways or central circuits. Gr32a is a gustatory chemoreceptor that, in D. melanogaster, is essential to inhibit interspecies courtship and sense quinine. Similar to D. melanogaster, we find that D. simulans Gr32a is expressed in foreleg tarsi, sensorimotor appendages that inhibit interspecies courtship, and it is required to sense quinine. Nevertheless, Gr32a is not required to inhibit interspecies mating by D. simulans males. However, and similar to its function in D. melanogaster, Ppk25, a member of the Pickpocket family, promotes conspecific courtship in D. simulans. Together, we have identified distinct evolutionary mechanisms underlying chemosensory control of taste and courtship in closely related Drosophila species.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sexual Behavior, Animal
/
Taste
/
Receptors, Cell Surface
/
Courtship
/
Drosophila Proteins
/
Drosophila melanogaster
/
Biological Evolution
/
Drosophila simulans
Limits:
Animals
Language:
En
Journal:
Cell Rep
Year:
2019
Document type:
Article
Affiliation country:
Estados Unidos
Country of publication:
Estados Unidos