An introgressed wing pattern acts as a mating cue

Heliconius butterflies provide good examples of both homoploid hybrid speciation and ecological speciation. In particular, examples of adaptive introgression have been detected among the subspecies of Heliconius timareta, which acquired red color pattern elements from H. melpomene. We tested whether...

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Autores:
Tipo de recurso:
Fecha de publicación:
2015
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/24031
Acceso en línea:
https://doi.org/10.1111/evo.12679
https://repository.urosario.edu.co/handle/10336/24031
Palabra clave:
Butterfly
Color
Hybridization
Introgression
Mating behavior
Mutation
Reproductive isolation
Subspecies
Wing morphology
Andes
Heliconius
Heliconius melpomene
Heliconius timareta
Papilionoidea
Anatomy and histology
Animal
Association
Butterfly
Color
Female
Genetics
Male
Mate choice
Pigmentation
Reproductive isolation
Species differentiation
Wing
Animals
Butterflies
Color
Cues
Female
Genetic speciation
Male
Pigmentation
Reproductive isolation
Heliconius
Homoploid hybrid speciation
Magic trait
Reproductive isolation
animal
animal
Mating preference
Wings
Rights
License
Abierto (Texto Completo)
Description
Summary:Heliconius butterflies provide good examples of both homoploid hybrid speciation and ecological speciation. In particular, examples of adaptive introgression have been detected among the subspecies of Heliconius timareta, which acquired red color pattern elements from H. melpomene. We tested whether the introgression of red wing pattern elements into H. timareta florencia might also be associated with incipient reproductive isolation (RI) from its close relative, H. timareta subsp. nov., found in the eastern Andes. No choice experiments show a 50% reduction in mating between females of H. t. subsp. nov. and males of H.t. florencia, but not in the reciprocal direction. In choice experiments using wing models, males of H. timareta subsp. nov. approach and court red phenotypes less than their own, whereas males of H. t. florencia prefer models with a red phenotype. Intrinsic postzygotic isolation was not detected in crosses between these H. timareta races. These results suggest that a color pattern trait gained by introgression is triggering RI between H. timareta subsp. nov. and H. t. florencia. © 2015 The Society for the Study of Evolution.