Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution

Freshwater sponges fulfill critical ecological functions, including maintaining water quality, regulating nutrient dynamics, offering habitats for diverse taxa, and serving as a vital food source for various species. However, their patterns of dispersal and genetic connectivity remain inadequately u...

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Autores: Cassidy, Robert, de la Cruz, Laura, Mitsi, Konstantina, Galià-Camps, Carles, Benítez-López, Ana, Gracia-Sancha, Carlota, Lorente-Sorolla, Jose, Álvarez, Almudena, Mozo, Rocío, Kolomyjec, Stephen, Nichols, Scott, Manconi, Renata, Pereira, Raquel, Evans, Karen, Itskovitch, Valeria, Horton, April L., Leys, Sally P., Taboada, Sergi, Riesgo Gil, Ana
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/389561
Acceso en línea:http://hdl.handle.net/10261/389561
Access Level:acceso abierto
Palabra clave:Genetic connectivity
ddRADseq
Ephydatia muelleri
Dispersal barriers
SNPs
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spelling Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distributionCassidy, Robertde la Cruz, LauraMitsi, KonstantinaGalià-Camps, CarlesBenítez-López, AnaGracia-Sancha, CarlotaLorente-Sorolla, JoseÁlvarez, AlmudenaMozo, RocíoKolomyjec, StephenNichols, ScottManconi, RenataPereira, RaquelEvans, KarenItskovitch, ValeriaHorton, April L.Leys, Sally P.Taboada, SergiRiesgo Gil, AnaGenetic connectivityddRADseqEphydatia muelleriDispersal barriersSNPsFreshwater sponges fulfill critical ecological functions, including maintaining water quality, regulating nutrient dynamics, offering habitats for diverse taxa, and serving as a vital food source for various species. However, their patterns of dispersal and genetic connectivity remain inadequately understood, posing significant challenges to effective conservation assessments. We examined genetic connectivity and genetic adaptation to local environmental conditions in Ephydatia muelleri across its geographic range using ddRADseq-derived SNPs from 106 individuals collected from 11 localities spanning North America, Europe, and Asia. Analysis of 3,182 neutral SNPs revealed low connectivity and strong genetic structure among regions within two main genetic clusters of North America and Eurasia, while 115 SNPs identified to be under selection showed considerable evidence for differentiated, polygenic adaptation to light and temperature conditions across sampled locations, as well as selection on gene regulatory processes. These findings align with the “monopolization hypothesis”, suggesting that historical climatic and geological conditions of the Last Glacial Maximum, including habitat expansion, contraction, and natural barriers, have contributed more to the current genetic structure of E. muelleri populations than contemporary gene flow, which is restricted by monopolistic habitat colonization by this species. Our results provide novel support for ecological theory on dispersal in aquatic invertebrates, as well as insights into the plasticity of E. muelleri in the face of varying environmental conditions that are fundamentally important for freshwater ecosystem conservation.NoBioRxivBenítez-López, Ana [0000-0002-6432-1837]Taboada, Sergio [0000-0003-1669-1152]Riesgo Gil, Ana [0000-0002-7993-1523]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionhttp://hdl.handle.net/10261/389561reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1101/2025.01.21.634144Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3895612026-05-22T06:33:51Z
dc.title.none.fl_str_mv Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
title Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
spellingShingle Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
Cassidy, Robert
Genetic connectivity
ddRADseq
Ephydatia muelleri
Dispersal barriers
SNPs
title_short Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
title_full Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
title_fullStr Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
title_full_unstemmed Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
title_sort Genomic connectivity and adaptation signals of the freshwater sponge Ephydatia muelleri across its distribution
dc.creator.none.fl_str_mv Cassidy, Robert
de la Cruz, Laura
Mitsi, Konstantina
Galià-Camps, Carles
Benítez-López, Ana
Gracia-Sancha, Carlota
Lorente-Sorolla, Jose
Álvarez, Almudena
Mozo, Rocío
Kolomyjec, Stephen
Nichols, Scott
Manconi, Renata
Pereira, Raquel
Evans, Karen
Itskovitch, Valeria
Horton, April L.
Leys, Sally P.
Taboada, Sergi
Riesgo Gil, Ana
author Cassidy, Robert
author_facet Cassidy, Robert
de la Cruz, Laura
Mitsi, Konstantina
Galià-Camps, Carles
Benítez-López, Ana
Gracia-Sancha, Carlota
Lorente-Sorolla, Jose
Álvarez, Almudena
Mozo, Rocío
Kolomyjec, Stephen
Nichols, Scott
Manconi, Renata
Pereira, Raquel
Evans, Karen
Itskovitch, Valeria
Horton, April L.
Leys, Sally P.
Taboada, Sergi
Riesgo Gil, Ana
author_role author
author2 de la Cruz, Laura
Mitsi, Konstantina
Galià-Camps, Carles
Benítez-López, Ana
Gracia-Sancha, Carlota
Lorente-Sorolla, Jose
Álvarez, Almudena
Mozo, Rocío
Kolomyjec, Stephen
Nichols, Scott
Manconi, Renata
Pereira, Raquel
Evans, Karen
Itskovitch, Valeria
Horton, April L.
Leys, Sally P.
Taboada, Sergi
Riesgo Gil, Ana
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Benítez-López, Ana [0000-0002-6432-1837]
Taboada, Sergio [0000-0003-1669-1152]
Riesgo Gil, Ana [0000-0002-7993-1523]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Genetic connectivity
ddRADseq
Ephydatia muelleri
Dispersal barriers
SNPs
topic Genetic connectivity
ddRADseq
Ephydatia muelleri
Dispersal barriers
SNPs
description Freshwater sponges fulfill critical ecological functions, including maintaining water quality, regulating nutrient dynamics, offering habitats for diverse taxa, and serving as a vital food source for various species. However, their patterns of dispersal and genetic connectivity remain inadequately understood, posing significant challenges to effective conservation assessments. We examined genetic connectivity and genetic adaptation to local environmental conditions in Ephydatia muelleri across its geographic range using ddRADseq-derived SNPs from 106 individuals collected from 11 localities spanning North America, Europe, and Asia. Analysis of 3,182 neutral SNPs revealed low connectivity and strong genetic structure among regions within two main genetic clusters of North America and Eurasia, while 115 SNPs identified to be under selection showed considerable evidence for differentiated, polygenic adaptation to light and temperature conditions across sampled locations, as well as selection on gene regulatory processes. These findings align with the “monopolization hypothesis”, suggesting that historical climatic and geological conditions of the Last Glacial Maximum, including habitat expansion, contraction, and natural barriers, have contributed more to the current genetic structure of E. muelleri populations than contemporary gene flow, which is restricted by monopolistic habitat colonization by this species. Our results provide novel support for ecological theory on dispersal in aquatic invertebrates, as well as insights into the plasticity of E. muelleri in the face of varying environmental conditions that are fundamentally important for freshwater ecosystem conservation.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/389561
url http://hdl.handle.net/10261/389561
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1101/2025.01.21.634144
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv BioRxiv
publisher.none.fl_str_mv BioRxiv
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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