A major locus controls a biologically active pheromone component in Heliconius melpomene

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dc.contributor.author Byers, Kelsey J. R. P.
dc.contributor.author Darragh, Kathy
dc.contributor.author Musgrove, Jamie
dc.contributor.author Abondano Almeida, Diana
dc.contributor.author Fernanda Garza, Sylvia
dc.contributor.author Warren, Ian A.
dc.contributor.author Rastas, Pasi M.
dc.contributor.author Kucka, Marek
dc.contributor.author Chan, Yingguang Frank
dc.contributor.author Merrill, Richard M.
dc.contributor.author Schulz, Stefan
dc.contributor.author Owen McMillan, W.
dc.contributor.author Jiggins, Chris D.
dc.date.accessioned 2021-01-11T10:27:02Z
dc.date.available 2021-01-11T10:27:02Z
dc.date.issued 2020-02
dc.identifier.citation Byers , K J R P , Darragh , K , Musgrove , J , Abondano Almeida , D , Fernanda Garza , S , Warren , I A , Rastas , P M , Kucka , M , Chan , Y F , Merrill , R M , Schulz , S , Owen McMillan , W & Jiggins , C D 2020 , ' A major locus controls a biologically active pheromone component in Heliconius melpomene ' , Evolution , vol. 74 , no. 2 , pp. 349-364 . https://doi.org/10.1111/evo.13922
dc.identifier.other PURE: 139945482
dc.identifier.other PURE UUID: fa92342f-1f0d-4c1a-a53b-40fc71f72eef
dc.identifier.other WOS: 000508041600001
dc.identifier.uri http://hdl.handle.net/10138/324373
dc.description.abstract Understanding the production, response, and genetics of signals used in mate choice can inform our understanding of the evolution of both intraspecific mate choice and reproductive isolation. Sex pheromones are important for courtship and mate choice in many insects, but we know relatively little of their role in butterflies. The butterfly Heliconius melpomene uses a complex blend of wing androconial compounds during courtship. Electroantennography in H. melpomene and its close relative Heliconius cydno showed that responses to androconial extracts were not species specific. Females of both species responded equally strongly to extracts of both species, suggesting conservation of peripheral nervous system elements across the two species. Individual blend components provoked little to no response, with the exception of octadecanal, a major component of the H. melpomene blend. Supplementing octadecanal on the wings of octadecanal-rich H. melpomene males led to an increase in the time until mating, demonstrating the bioactivity of octadecanal in Heliconius. Using quantitative trait locus (QTL) mapping, we identified a single locus on chromosome 20 responsible for 41% of the parental species' difference in octadecanal production. This QTL does not overlap with any of the major wing color or mate choice loci, nor does it overlap with known regions of elevated or reduced F-ST. A set of 16 candidate fatty acid biosynthesis genes lies underneath the QTL. Pheromones in Heliconius carry information relevant for mate choice and are under simple genetic control, suggesting they could be important during speciation. en
dc.format.extent 16
dc.language.iso eng
dc.relation.ispartof Evolution
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject Behavior
dc.subject electroantennography
dc.subject Heliconius
dc.subject pheromones
dc.subject quantitative trait locus mapping
dc.subject HOST RACES
dc.subject BUTTERFLIES
dc.subject SPECIATION
dc.subject ODOR
dc.subject 1181 Ecology, evolutionary biology
dc.title A major locus controls a biologically active pheromone component in Heliconius melpomene en
dc.type Article
dc.contributor.organization Institute of Biotechnology
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1111/evo.13922
dc.relation.issn 0014-3820
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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