Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish

The Aach cave loach (Barbatula barbatula), a recently discovered member of the Nemacheilidae family, offers a unique opportunity to understand the mechanisms underlying evolutionary change. In a common garden experiment, we reared groups of laboratory-bred cave, surface, and hybrid loach under diffe...

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Autores: Behrmann-Godel, Jasminca, Roch, Samuel, Böhm, Alexander, Jolles, Jolle W., Brinker, Alexander
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/386923
Acesso em linha:http://hdl.handle.net/10261/386923
https://api.elsevier.com/content/abstract/scopus_id/85189037948
Access Level:acceso abierto
Palavra-chave:Barbatula barbatula
Adaptation
Cavefish
Common garden experiment
Evolution
Subterranean
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spelling Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefishBehrmann-Godel, JasmincaRoch, SamuelBöhm, AlexanderJolles, Jolle W.Brinker, AlexanderBarbatula barbatulaAdaptationCavefishCommon garden experimentEvolutionSubterraneanThe Aach cave loach (Barbatula barbatula), a recently discovered member of the Nemacheilidae family, offers a unique opportunity to understand the mechanisms underlying evolutionary change. In a common garden experiment, we reared groups of laboratory-bred cave, surface, and hybrid loach under different light conditions. Troglomorphic characters varied significantly among the fish, influenced to a different extent by parental origin and light conditions. Cavefish progeny consistently exhibited smaller eyes, lighter pigmentation, longer barbels, and larger olfactory epithelia than surface fish, while hybrids displayed intermediate characteristics. Surface and hybrid fish raised in complete darkness resembled the cavefish phenotype, while cavefish raised under a natural photoperiod approached the surface form. Characters associated with eye degeneration were found to be primarily heritable. Conversely, traits related to chemo- and mechano-reception were enhanced in the surface and hybrid groups reared in complete darkness, suggesting phenotypic plasticity. Our findings offer valuable insights into the interplay between genetic differentiation and phenotypic plasticity to troglomorphic adaption. This contributes to the broader understanding of the early stages of adaptation, where phenotypic plasticity, drift, and selection shape phenotypes. Relatively recently established cavefish, such as the Aach cave loach, are promising candidates for comparative research investigating evolutionary mechanisms.This work was financially supported by the University of Konstanz to J.B. -G. and A.Bö.We are most grateful to cave diver Joachim Kreiselmaier. His tenacious and enthusiastic participation, sacrificing much of his free time to dive in cold subterranean waters, and his skill in capturing cave loach under extremely challenging conditions were what made this study possible. We are also grateful to all members of the “Freunde der Aachhöhle e.V” for their kind support. Warm thanks to family Bürßner for allowing entry onto their property to access the entrance to the Danube–Aach system. We thank Myriam Schmidt for her help in fish maintenance, Lucidus Consultancy for English language editing, and Dr. Tristan Stayton and two anonymous reviewers for their thorough and constructive comments.Peer reviewedOxford University PressUniversity of KonstanzRoch, Samuel [0000-0003-3441-9830]Brinker, Alexander [0000-0002-2433-5652]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/386923https://api.elsevier.com/content/abstract/scopus_id/85189037948reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésThe underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/evolut/qpae010Behrmann-Godel, Jasminca; Roch, Samuel; Böhm, Alexander; Jolles, Jolle W.; Brinker, Alexander; 2024; Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish [Dataset]; Dryad; https://doi.org/10.5061/dryad.fbg79cp2whttps://doi.org/10.1093/evolut/qpae010Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3869232026-05-22T06:33:51Z
dc.title.none.fl_str_mv Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
title Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
spellingShingle Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
Behrmann-Godel, Jasminca
Barbatula barbatula
Adaptation
Cavefish
Common garden experiment
Evolution
Subterranean
title_short Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
title_full Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
title_fullStr Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
title_full_unstemmed Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
title_sort Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish
dc.creator.none.fl_str_mv Behrmann-Godel, Jasminca
Roch, Samuel
Böhm, Alexander
Jolles, Jolle W.
Brinker, Alexander
author Behrmann-Godel, Jasminca
author_facet Behrmann-Godel, Jasminca
Roch, Samuel
Böhm, Alexander
Jolles, Jolle W.
Brinker, Alexander
author_role author
author2 Roch, Samuel
Böhm, Alexander
Jolles, Jolle W.
Brinker, Alexander
author2_role author
author
author
author
dc.contributor.none.fl_str_mv University of Konstanz
Roch, Samuel [0000-0003-3441-9830]
Brinker, Alexander [0000-0002-2433-5652]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Barbatula barbatula
Adaptation
Cavefish
Common garden experiment
Evolution
Subterranean
topic Barbatula barbatula
Adaptation
Cavefish
Common garden experiment
Evolution
Subterranean
description The Aach cave loach (Barbatula barbatula), a recently discovered member of the Nemacheilidae family, offers a unique opportunity to understand the mechanisms underlying evolutionary change. In a common garden experiment, we reared groups of laboratory-bred cave, surface, and hybrid loach under different light conditions. Troglomorphic characters varied significantly among the fish, influenced to a different extent by parental origin and light conditions. Cavefish progeny consistently exhibited smaller eyes, lighter pigmentation, longer barbels, and larger olfactory epithelia than surface fish, while hybrids displayed intermediate characteristics. Surface and hybrid fish raised in complete darkness resembled the cavefish phenotype, while cavefish raised under a natural photoperiod approached the surface form. Characters associated with eye degeneration were found to be primarily heritable. Conversely, traits related to chemo- and mechano-reception were enhanced in the surface and hybrid groups reared in complete darkness, suggesting phenotypic plasticity. Our findings offer valuable insights into the interplay between genetic differentiation and phenotypic plasticity to troglomorphic adaption. This contributes to the broader understanding of the early stages of adaptation, where phenotypic plasticity, drift, and selection shape phenotypes. Relatively recently established cavefish, such as the Aach cave loach, are promising candidates for comparative research investigating evolutionary mechanisms.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/386923
https://api.elsevier.com/content/abstract/scopus_id/85189037948
url http://hdl.handle.net/10261/386923
https://api.elsevier.com/content/abstract/scopus_id/85189037948
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/evolut/qpae010
Behrmann-Godel, Jasminca; Roch, Samuel; Böhm, Alexander; Jolles, Jolle W.; Brinker, Alexander; 2024; Genetic differentiation and phenotypic plasticity drive troglomorphic character development in European cavefish [Dataset]; Dryad; https://doi.org/10.5061/dryad.fbg79cp2w
https://doi.org/10.1093/evolut/qpae010
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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