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Marine forests of the Mediterranean-Atlantic Cystoseira tamariscifolia complex show a southern Iberian genetic hotspot and no reproductive isolation in parapatry

2018-07Journal article Open access
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dc.contributor.authorBermejo, Ricardo
dc.contributor.authorChefaoui, Rosa M.
dc.contributor.authorEngelen, Aschwin H.
dc.contributor.authorBuonomo, Roberto
dc.contributor.authorNeiva, J.
dc.contributor.authorFerreira-Costa, Joana
dc.contributor.authorPearson, Gareth
dc.contributor.authorMarba, Nuria
dc.contributor.authorDuarte, Carlos M.
dc.contributor.authorAiroldi, Laura
dc.contributor.authorHernandez, Ignacio
dc.contributor.authorGuiry, Michael D.
dc.contributor.authorSerrao, Ester A.
dc.date.accessioned2018-12-07T14:53:14Z
dc.date.available2018-12-07T14:53:14Z
dc.date.issued2018-07
dc.description.abstractClimate-driven range-shifts create evolutionary opportunities for allopatric divergence and subsequent contact, leading to genetic structuration and hybrid zones. We investigate how these processes influenced the evolution of a complex of three closely related Cystoseira spp., which are a key component of the Mediterranean-Atlantic seaweed forests that are undergoing population declines. The C. tamariscifolia complex, composed of C. tamariscifolia s.s., C. amentacea and C. mediterranea, have indistinct boundaries and natural hybridization is suspected. Our aims are to (1) infer the genetic structure and diversity of these species throughout their distribution ranges using microsatellite markers to identify ancient versus recent geographical populations, contact zones and reproductive barriers, and (2) hindcast past distributions using niche models to investigate the influence of past range shifts on genetic divergence at multiple spatial scales. Results supported a single, morphologically plastic species the genetic structure of which was incongruent with a priori species assignments. The low diversity and low singularity in northern European populations suggest recent colonization after the LGM. The southern Iberian genetic hotspot most likely results from the role of this area as a climatic refugium or a secondary contact zone between differentiated populations or both. We hypothesize that life-history traits (selfing, low dispersal) and prior colonization effects, rather than reproductive barriers, might explain the observed genetic discontinuities.
dc.description.sponsorshipPew Charitable Trusts (USA); MARINERA, Spain [CTM2008-04183-E/MAR]; FCT (Portugal) [FCT-BIODIVERSA/004/2015, CCMAR/Multi/04326/2013, SFRH/BPD/107878/2015, SFRH/BPD/85040/2012]; FPU fellowship of the Spanish Ministry of Education; European Community ASSEMBLE visiting grant [00399/2012]; University of Cadiz
dc.identifier.doi10.1038/s41598-018-28811-1
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10400.1/11421
dc.language.isoeng
dc.peerreviewedyes
dc.publisherNature Publishing Group
dc.subjectSpecies Distribution Models
dc.subjectPopulation-Genetics
dc.subjectGlacial Refugia
dc.subjectBrown Seaweeds
dc.subjectDiversity
dc.subjectSargassaceae
dc.subjectPhaeophyceae
dc.subjectAmentacea
dc.subjectFucales
dc.subjectAssemblages
dc.titleMarine forests of the Mediterranean-Atlantic Cystoseira tamariscifolia complex show a southern Iberian genetic hotspot and no reproductive isolation in parapatry
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage10427
oaire.citation.titleScientific Reports
oaire.citation.volume8
person.familyNameEngelen
person.familyNameBuonomo
person.familyNameMiranda Neiva
person.familyNamePearson
person.familyNameSerrao
person.givenNameAschwin
person.givenNameRoberto
person.givenNameJoão
person.givenNameGareth Anthony
person.givenNameEster A.
person.identifierM-3818-2013
person.identifier113536
person.identifierC-6686-2012
person.identifier.ciencia-id911A-9A0C-744D
person.identifier.ciencia-id191B-5464-41F5
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0002-9579-9606
person.identifier.orcid0000-0002-4840-6689
person.identifier.orcid0000-0002-5927-4570
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridM-3432-2013
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id6701622770
person.identifier.scopus-author-id54895771800
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id7004093604
rcaap.rightsopenAccess
rcaap.typearticle
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