@article{621c61a05be941d1a5ca8a02509d3e73,
title = "Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range",
abstract = "In many animals, mate choice is important for the maintenance of reproductive isolation between species. Traits important for mate choice and behavioral isolation are predicted to be under strong stabilizing selection within species; however, such traits can also exhibit variation at the population level driven by neutral and adaptive evolutionary processes. Here, we describe patterns of divergence among androconial and genital chemical profiles at inter- and intraspecific levels in mimetic Heliconius butterflies. Most variation in chemical bouquets was found between species, but there were also quantitative differences at the population level. We found a strong correlation between interspecific chemical and genetic divergence, but this correlation varied in intraspecific comparisons. We identified “indicator” compounds characteristic of particular species that included compounds already known to elicit a behavioral response, suggesting an approach for identification of candidate compounds for future behavioral studies in novel systems. Overall, the strong signal of species identity suggests a role for these compounds in species recognition, but with additional potentially neutral variation at the population level.",
author = "Kathy Darragh and Gabriela Montejo-Kovacevich and Kozak, {Krzysztof M.} and Morrison, {Colin R.} and Figueiredo, {Clarisse M.E.} and Ready, {Jonathan S.} and Camilo Salazar and Mauricio Linares and Byers, {Kelsey J.R.P.} and Merrill, {Richard M.} and McMillan, {W. Owen} and Stefan Schulz and Jiggins, {Chris D.}",
note = "Funding Information: KD and GMK were supported by Natural Research Council Doctoral Training Partnership (NE/L002507/1), and KD was additionally supported by a Smithsonian Tropical Research Institute Short-Term Fellowship. KMK was funded by a Smithsonian Institution Fellowship. CRM was supported by a Smithsonian Tropical Research Institute Short-Term Fellowship and Predoctoral Fellowship. This study was financed in part by the Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior ? Brasil (CAPES) ? Finance Code 001 (MSc Scholarship for CMEF). CMEF was also funded by a Smithsonian Tropical Research Institute Short-Term Fellowship. CS was funded by COLCIENCIAS (FP44842-5-2017). ML was supported by research funds from Universidad del Rosario. KJRPB and CDJ were supported by the European Research Council (339873 SpeciationGenetics). RMM was supported by a DFG Emmy Noether Fellowship. WOM was supported by the Smithsonian Tropical Research Institute and NSF (DEB 1257689). SS thanks the Deutsche Forschungsgemeinschaft (DFG) for support through grant Schu984/12-1. We thank Emma Curran and Nicola Nadeau for sharing of data. The authors have no conflicts of interest to declare. Publisher Copyright: {\textcopyright} 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2020",
month = may,
day = "1",
doi = "10.1002/ece3.6079",
language = "English (US)",
volume = "10",
pages = "3895--3918",
journal = "Ecology and Evolution",
issn = "2045-7758",
publisher = "John Wiley and Sons Ltd",
number = "9",
}