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Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range
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...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244815/ https://www.ncbi.nlm.nih.gov/pubmed/32489619 http://dx.doi.org/10.1002/ece3.6079 |
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author | Darragh, Kathy Montejo‐Kovacevich, Gabriela Kozak, Krzysztof M. Morrison, Colin R. Figueiredo, Clarisse M. E. Ready, Jonathan S. Salazar, Camilo Linares, Mauricio Byers, Kelsey J. R. P. Merrill, Richard M. McMillan, W. Owen Schulz, Stefan Jiggins, Chris D. |
author_facet | Darragh, Kathy Montejo‐Kovacevich, Gabriela Kozak, Krzysztof M. Morrison, Colin R. Figueiredo, Clarisse M. E. Ready, Jonathan S. Salazar, Camilo Linares, Mauricio Byers, Kelsey J. R. P. Merrill, Richard M. McMillan, W. Owen Schulz, Stefan Jiggins, Chris D. |
author_sort | Darragh, Kathy |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-7244815 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-72448152020-06-01 Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range Darragh, Kathy Montejo‐Kovacevich, Gabriela Kozak, Krzysztof M. Morrison, Colin R. Figueiredo, Clarisse M. E. Ready, Jonathan S. Salazar, Camilo Linares, Mauricio Byers, Kelsey J. R. P. Merrill, Richard M. McMillan, W. Owen Schulz, Stefan Jiggins, Chris D. Ecol Evol Original Research 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. John Wiley and Sons Inc. 2020-04-03 /pmc/articles/PMC7244815/ /pubmed/32489619 http://dx.doi.org/10.1002/ece3.6079 Text en © 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Darragh, Kathy Montejo‐Kovacevich, Gabriela Kozak, Krzysztof M. Morrison, Colin R. Figueiredo, Clarisse M. E. Ready, Jonathan S. Salazar, Camilo Linares, Mauricio Byers, Kelsey J. R. P. Merrill, Richard M. McMillan, W. Owen Schulz, Stefan Jiggins, Chris D. Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range |
title | Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range |
title_full | Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range |
title_fullStr | Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range |
title_full_unstemmed | Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range |
title_short | Species specificity and intraspecific variation in the chemical profiles of Heliconius butterflies across a large geographic range |
title_sort | species specificity and intraspecific variation in the chemical profiles of heliconius butterflies across a large geographic range |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244815/ https://www.ncbi.nlm.nih.gov/pubmed/32489619 http://dx.doi.org/10.1002/ece3.6079 |
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