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Chemical signals act as the main reproductive barrier between sister and mimetic Heliconius butterflies.

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dc.creatorGonzalez-Rojas, M Fspa
dc.creatorDarragh, Kspa
dc.creatorRobles, Jspa
dc.creatorLinares, Mauricio
dc.creatorSchulz, Sspa
dc.creatorMcMillan, W Ospa
dc.creatorJiggins, C Dspa
dc.creatorPardo Díaz, Geimy Carolinaspa
dc.creatorSalazar, Camilo
dc.date.accessioned2020-06-11T13:22:30Z
dc.date.available2020-06-11T13:22:30Z
dc.date.created2020spa
dc.description.abstractColour pattern is the main trait that drives mate recognition between Heliconius species that are phylogenetically close. However, when this cue is compromised such as in cases of mimetic, sympatric and closely related species, alternative mating signals must evolve to ensure reproductive isolation and species integrity. The closely related species Heliconius melpomene malleti and H. timareta florencia occur in the same geographical region, and despite being co-mimics, they display strong reproductive isolation. In order to test which cues differ between species, and potentially contribute to reproductive isolation, we quantified differences in the wing phenotype and the male chemical profile. As expected, the wing colour pattern was indistinguishable between the two species, while the chemical profile of the androconial and genital males' extracts showed marked differences. We then conducted behavioural experiments to study the importance of these signals in mate recognition by females. In agreement with our previous results, we found that chemical blends and not wing colour pattern drive the preference of females for conspecific males. Also, experiments with hybrid males and females suggested an important genetic component for both chemical production and preference. Altogether, these results suggest that chemicals are the major reproductive barrier opposing gene flow between these two sister and co-mimic species.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1098/rspb.2020.0587
dc.identifier.issn1471-2954
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/25142
dc.language.isoeng
dc.publisherThe Royal Society Publishingspa
dc.relation.citationEndPage20200587
dc.relation.citationIssueNo. 1926
dc.relation.citationStartPage20200587
dc.relation.citationTitleProceedings. Biological sciences
dc.relation.citationVolumeVol. 287
dc.relation.ispartofProceedings. Biological sciences, ISSN:1471-2954, Vol.287, No.1926 (2020); pp. 20200587-20200587spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.source.instnameinstname:Universidad del Rosariospa
dc.source.reponamereponame:Repositorio Institucional EdocURspa
dc.subject.keywordHeliconiusspa
dc.subject.keywordchemical signaturesspa
dc.subject.keywordmate choicespa
dc.subject.keywordreproductive isolationspa
dc.subject.keywordspeciationspa
dc.titleChemical signals act as the main reproductive barrier between sister and mimetic Heliconius butterflies.spa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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