The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data

Ecdysozoans (Phyla Arthropoda, Kinorhyncha, Loricifera, Nematoda, Nematomorpha, Onychophora, Priapulida, Tardigrada) are invertebrates bearing a tough, periodically moulted cuticle that predisposes them to exceptional preservation. Ecdysozoans dominate the oldest exceptionally preserved bilaterian a...

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Autores: Howard, Richard J., Giacomelli, Mattia, Lozano Fernández, Jesús, Edgecombe, Gregory D., Fleming, James F., Kristensen, Reinhardt, Ma, Xiaoya, Olesen, Jørgen, Sørensen, Martin V., Thomsen, Philip Francis, Wills, Matthew A., Donoghue, Philip C. J., Pisani, Davide
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/295775
Acceso en línea:http://hdl.handle.net/10261/295775
Access Level:acceso abierto
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spelling The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic dataHoward, Richard J.Giacomelli, MattiaLozano Fernández, JesúsEdgecombe, Gregory D.Fleming, James F.Kristensen, ReinhardtMa, XiaoyaOlesen, JørgenSørensen, Martin V.Thomsen, Philip FrancisWills, Matthew A.Donoghue, Philip C. J.Pisani, DavideEcdysozoans (Phyla Arthropoda, Kinorhyncha, Loricifera, Nematoda, Nematomorpha, Onychophora, Priapulida, Tardigrada) are invertebrates bearing a tough, periodically moulted cuticle that predisposes them to exceptional preservation. Ecdysozoans dominate the oldest exceptionally preserved bilaterian animal biotas in the early to mid-Cambrian (c. 520–508 Ma), with possible trace fossils in the latest Ediacaran (<556 Ma). The fossil record of Ecdysozoa is among the best understood of major animal clades and is believed to document their origins and evolutionary history well. Strikingly, however, molecular clock analyses have implied a considerably deeper Precambrian origin for Ecdysozoa, much older than their earliest fossils. Here, using an improved set of fossil calibrations, we performed Bayesian analyses to estimate an evolutionary time-tree for Ecdysozoa, sampling all eight phyla for the first time. Our results recover Scalidophora as the sister group to Nematoida + Panarthropoda (= Cryptovermes nov.) and suggest that the Ediacaran divergence of Ecdysozoa occurred at least 23 myr before the first potential ecdysozoan trace fossils. This finding is impervious to the use of all plausible phylogenies, fossil prior distributions, evolutionary rate models and matrix partitioning strategies. Arthropods exhibit more precision and less incongruence between fossil- and clock-based estimates of clade ages than other ecdysozoan phyla.The NERC GW4 + Doctoral Training Partnership provided stipend and research expenditure to R.J.H. D.P. and M.G. were supported by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement 764840. D.P. and P.C.J.D. were funded by Natural Environment Research Council (NERC) grant NE/P013678/1, part of the Biosphere Evolution, Transitions and Resilience (BETR) programme, which is co-funded by the Natural Science Foundation of China (NSFC). P.C.J.D. is funded by Biotechnology and Biological Sciences Research Council (BBSRC) grants BB/N000919/1 and BB/T012773/1. R.M.K. was funded by the Danish Natural Science Research Council (grant FNU 272-08-0576) and Carlsberg Foundation (grants CF 970345/30-488, CF 2009_01_0063, CF 2012_01_0123 and CF 16-0236). J.O. was supported by a grant from the Danish Agency for Science, Technology and Innovation (0601-12345B). M.A.W acknowledges BBSRC grant BB/K006754/1 and JTF Grant 61408. NERC Independent Research Fellowship (Grant 680 NE/L011751/1) provided salary and research expenditure for X.-Y.M. J.F.F was funded by Royal Society–Japan Society for the Promotion of Science KAKENHI grant 18F18788.Geological Society of LondonEuropean CommissionNatural Environment Research Council (UK)National Natural Science Foundation of ChinaBiotechnology and Biological Sciences Research Council (UK)Danish Natural Science Research CouncilCarlsberg FoundationDanish Agency for Science, Technology and InnovationNatural Environment Research Council (UK)Japan Society for the Promotion of ScienceConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320222023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/295775reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/764840https://doi.org/10.1144/jgs2021-107Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2957752026-05-22T06:33:51Z
dc.title.none.fl_str_mv The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
title The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
spellingShingle The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
Howard, Richard J.
title_short The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
title_full The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
title_fullStr The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
title_full_unstemmed The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
title_sort The Ediacaran origin of Ecdysozoa: integrating fossil and phylogenomic data
dc.creator.none.fl_str_mv Howard, Richard J.
Giacomelli, Mattia
Lozano Fernández, Jesús
Edgecombe, Gregory D.
Fleming, James F.
Kristensen, Reinhardt
Ma, Xiaoya
Olesen, Jørgen
Sørensen, Martin V.
Thomsen, Philip Francis
Wills, Matthew A.
Donoghue, Philip C. J.
Pisani, Davide
author Howard, Richard J.
author_facet Howard, Richard J.
Giacomelli, Mattia
Lozano Fernández, Jesús
Edgecombe, Gregory D.
Fleming, James F.
Kristensen, Reinhardt
Ma, Xiaoya
Olesen, Jørgen
Sørensen, Martin V.
Thomsen, Philip Francis
Wills, Matthew A.
Donoghue, Philip C. J.
Pisani, Davide
author_role author
author2 Giacomelli, Mattia
Lozano Fernández, Jesús
Edgecombe, Gregory D.
Fleming, James F.
Kristensen, Reinhardt
Ma, Xiaoya
Olesen, Jørgen
Sørensen, Martin V.
Thomsen, Philip Francis
Wills, Matthew A.
Donoghue, Philip C. J.
Pisani, Davide
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Natural Environment Research Council (UK)
National Natural Science Foundation of China
Biotechnology and Biological Sciences Research Council (UK)
Danish Natural Science Research Council
Carlsberg Foundation
Danish Agency for Science, Technology and Innovation
Natural Environment Research Council (UK)
Japan Society for the Promotion of Science
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Ecdysozoans (Phyla Arthropoda, Kinorhyncha, Loricifera, Nematoda, Nematomorpha, Onychophora, Priapulida, Tardigrada) are invertebrates bearing a tough, periodically moulted cuticle that predisposes them to exceptional preservation. Ecdysozoans dominate the oldest exceptionally preserved bilaterian animal biotas in the early to mid-Cambrian (c. 520–508 Ma), with possible trace fossils in the latest Ediacaran (<556 Ma). The fossil record of Ecdysozoa is among the best understood of major animal clades and is believed to document their origins and evolutionary history well. Strikingly, however, molecular clock analyses have implied a considerably deeper Precambrian origin for Ecdysozoa, much older than their earliest fossils. Here, using an improved set of fossil calibrations, we performed Bayesian analyses to estimate an evolutionary time-tree for Ecdysozoa, sampling all eight phyla for the first time. Our results recover Scalidophora as the sister group to Nematoida + Panarthropoda (= Cryptovermes nov.) and suggest that the Ediacaran divergence of Ecdysozoa occurred at least 23 myr before the first potential ecdysozoan trace fossils. This finding is impervious to the use of all plausible phylogenies, fossil prior distributions, evolutionary rate models and matrix partitioning strategies. Arthropods exhibit more precision and less incongruence between fossil- and clock-based estimates of clade ages than other ecdysozoan phyla.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
2023
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/10261/295775
url http://hdl.handle.net/10261/295775
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/764840
https://doi.org/10.1144/jgs2021-107
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 Geological Society of London
publisher.none.fl_str_mv Geological Society of London
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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