The genetic legacy of the Quaternary ice ages for West Palearctic butterflies
Dapporto, Leonardo; Menchetti, Mattia; Dincă, Vlad; Talavera, Gerard; Garcia-Berro, Aurora; D'Ercole, Jacopo; Hebert, Paul Dn; Vila, Roger
American association for the advancement of science
Dapporto, L., Menchetti, M., Dincă, V., Talavera, G., Garcia-Berro, A., D’Ercole, J., Hebert, P. D., & Vila, R. (2024). The genetic legacy of the Quaternary ice ages for West Palearctic butterflies. Science Advances, 10(38), eadm8596. https://doi.org/10.1126/sciadv.adm8596
https://creativecommons.org/licenses/by-nc/4.0/
Copyright © 2024 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. no claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
https://creativecommons.org/licenses/by-nc/4.0/
Copyright © 2024 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. no claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
https://creativecommons.org/licenses/by-nc/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202409195969
https://urn.fi/URN:NBN:fi:oulu-202409195969
Tiivistelmä
Abstract
The interplay between geographic barriers and climatic oscillations over the past 2.6 million years structured genetic variation at the continental scale. The genetic legacy of the Quaternary ice ages (GLQ) hypothesis outlines this phenomenon for Europe, but a comprehensive data-driven assessment is lacking. Using innovative genetic landscape methods, we model the GLQ in the West Palearctic based on 31,653 Cytochrome c oxidase subunit 1 (COI) sequences from 494 butterfly species and three functional traits. Seven distinct bioregions with varying levels of genetic endemicity emerge, revealing a latitudinal gradient in variation that confirms the “southern richness, northern purity” hypothesis. Through shift from case studies to a comparative approach, we objectively identify the main glacial refugia, colonization routes, and barriers to dispersal. Our findings offer a quantitative model of the GLQ across Europe, North Africa, and neighboring Asia, with broader applicability to other taxa and potentially scalable to encompass life on Earth.
The interplay between geographic barriers and climatic oscillations over the past 2.6 million years structured genetic variation at the continental scale. The genetic legacy of the Quaternary ice ages (GLQ) hypothesis outlines this phenomenon for Europe, but a comprehensive data-driven assessment is lacking. Using innovative genetic landscape methods, we model the GLQ in the West Palearctic based on 31,653 Cytochrome c oxidase subunit 1 (COI) sequences from 494 butterfly species and three functional traits. Seven distinct bioregions with varying levels of genetic endemicity emerge, revealing a latitudinal gradient in variation that confirms the “southern richness, northern purity” hypothesis. Through shift from case studies to a comparative approach, we objectively identify the main glacial refugia, colonization routes, and barriers to dispersal. Our findings offer a quantitative model of the GLQ across Europe, North Africa, and neighboring Asia, with broader applicability to other taxa and potentially scalable to encompass life on Earth.
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