Repository logo
 
Publication

Reproductive strategies and population genetic structure of Fucus spp. across a northeast Atlantic biogeographic transition

2017-05Journal article Restricted access
Simple item page
dc.contributor.authorAlmeida, Susana C.
dc.contributor.authorNicastro, Katy
dc.contributor.authorZardi, Gerardo I.
dc.contributor.authorPearson, Gareth
dc.contributor.authorValero, Myriam
dc.contributor.authorA, Serrão
dc.date.accessioned2019-11-20T15:07:35Z
dc.date.available2019-11-20T15:07:35Z
dc.date.issued2017-05
dc.description.abstractGeographical discontinuities in the composition of species assemblages are often mirrored by genetic clines and local adaptation in species that extend across such biogeographic disjunction. Species distributed across such biogeographic discontinuities are thus more prone to develop genetic clines and adaptations to environmental variation. The northwest coast of France encompasses a biogeographic boundary between cold- and warm-temperate marine ecosystems. Distinct hydrographic features characterize northern and southern shores, promoting physical oceanographic breaks that can affect dispersal and connectivity between populations. Furthermore, mosaics of contrasting conditions may affect local patterns of species assemblages and potential adaptive pressures. Along this stretch of coast, the intertidal habitat is largely dominated by brown algae of the genus Fucus, key structuring species common along North Atlantic shorelines. Fucus spiralis, F. guiryi and F. vesiculosus are sister species with different mating systems. They have extensive sympatric geographical distributions and distinct but overlapping vertical distributions in the intertidal zone. We examined genetic structure and diversity across this major environmental transition zone using neutral microsatellite markers to investigate patterns of differentiation between populations of each species inhabiting the two different biogeographic regions. We found contrasting results between the dioecious species (F. vesiculosus) and the two selfing hermaphroditic lineages (F. spiralis and F. guiryi). Genetic differentiation of northern and southern populations of F. vesiculosus followed the expectation from a hypothetical oceanographic discontinuity across this biogeographical transition zone, but this was not the case for the two hermaphroditic species. The former had higher genetic diversity and structure along the distribution range investigated whereas selfing hermaphrodites had less variability and were not geographically structured. Our results suggest that genetic patterns are correlated with this biogeographical transition zone but this effect is dependent on mating system, a determining factor affecting population structure. Additionally, other factors such as intertidal elevation may also play a role in observed difference in genetic structuring.
dc.description.sponsorshipFundacao para a Ciencia e a Tecnologia (FCT-MEC, Portugal) [CCMAR - UID/MULTI/04326/2013, EXCL/AAG-GLO/0661/2012, IF/01413/2014/CP1217/CT0004]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1051/alr/2017012
dc.identifier.issn0990-7440
dc.identifier.issn1765-2952
dc.identifier.urihttp://hdl.handle.net/10400.1/13118
dc.language.isoeng
dc.peerreviewedyes
dc.publisherEdp Sciences S A
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMicrosatellite null alleles
dc.subjectFrench continental-shelf
dc.subjectSpecies range expansion
dc.subjectClimate-change
dc.subjectMating system
dc.subjectLaminaria-digitata
dc.subjectEnglish-channel
dc.subjectSeaweed communities
dc.subjectLarval dispersal
dc.subjectIntertidal alga
dc.titleReproductive strategies and population genetic structure of Fucus spp. across a northeast Atlantic biogeographic transition
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage16
oaire.citation.titleAquatic Living Resources
oaire.citation.volume30
person.familyNameAlmeida
person.familyNameNicastro
person.familyNamePearson
person.familyNameSerrao
person.givenNameSusana
person.givenNameKaty
person.givenNameGareth Anthony
person.givenNameEster A.
person.identifier113536
person.identifierC-6686-2012
person.identifier.ciencia-id3E12-714B-AFE5
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0003-3452-4227
person.identifier.orcid0000-0002-7071-141X
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridM-4096-2013
person.identifier.ridD-2259-2012
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id12646675100
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id7004093604
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublicationdd2112c6-7d51-4121-8f1e-7c94ab040696
relation.isAuthorOfPublication6268844a-b0a2-4aa5-9616-c3afaba0e2ca
relation.isAuthorOfPublication0a10c448-c7f5-4c3b-9488-3917c707e35e
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscoverydd2112c6-7d51-4121-8f1e-7c94ab040696

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Reproductive strategies - 13118.pdf
Size:
1.75 MB
Format:
Adobe Portable Document Format
Download

Collections

CCM2-Artigos (em revistas ou actas indexadas)