ub.xmlui.mirage2.page-structure.muninLogoub.xmlui.mirage2.page-structure.openResearchArchiveLogo
    • EnglishEnglish
    • norsknorsk
  • Velg spraaknorsk 
    • EnglishEnglish
    • norsknorsk
  • Administrasjon/UB
Vis innførsel 
  •   Hjem
  • Fakultet for biovitenskap, fiskeri og økonomi
  • Norges fiskerihøgskole
  • Artikler, rapporter og annet (Norges fiskerihøgskole)
  • Vis innførsel
  •   Hjem
  • Fakultet for biovitenskap, fiskeri og økonomi
  • Norges fiskerihøgskole
  • Artikler, rapporter og annet (Norges fiskerihøgskole)
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

East is East and West is West: Population genomics and hierarchical analyses reveal genetic structure and adaptation footprints in the keystone species Paracentrotus lividus (Echinoidea)

Permanent lenke
https://hdl.handle.net/10037/17403
DOI
https://doi.org/10.1111/ddi.13016
Thumbnail
Åpne
article.pdf (1.356Mb)
Publisert versjon (PDF)
Dato
2019-12-14
Type
Journal article
Tidsskriftartikkel
Peer reviewed
Article has an altmetric score of 48
Forfatter
Carreras, Carlos; García-Cisneros, Alex; Wangensteen Fuentes, Owen Simon; Ordóñez, Victor; Palacín, Creu; Pascual, Marta; Turon, Xavier
Sammendrag
Aim - The Atlanto‐Mediterranean edible purple sea urchin, Paracentrotus lividus, is a commercially exploited keystone species in benthic communities. Its browsing activity can deeply modify the littoral landscape, and changes in its abundance are of major conservation concern. This species is facing nowadays contrasting anthropogenic pressures linked to predator release, exploitation and sea warming. Management of this key species requires knowledge of its genetic structure, connectivity and local adaptation. Our goal was to assess the current global status of the species under a genomic perspective.

Location - Atlanto‐Mediterranean shores from Morocco and France to Turkey.

Methods - We used genotyping by sequencing (GBS) of 241 individuals belonging to 11 populations spanning the known range of distribution of the species. We obtained 3,348 loci for population genomics and outlier analyses.

Results - We identified significant genetic structure and a gradient matching the longitudinal position of the localities. A hierarchical analysis revealed two main clusters (Atlantic and Mediterranean) and subtler patterns of differentiation within them. Candidate markers for selection identified between and within these two main clusters were mostly different, likely indicating different selective pressures. Adaptation to maximum salinity and maximum temperature appeared as an important driver of the transition between Atlantic and Mediterranean basins. Other stressors, such as minimum temperature or range of temperature, seem to define the structuring within the Mediterranean.

Main conclusions - Our study shows the potential of hierarchical analyses on population genomics to detect fine‐scale genetic structure and adaptation signatures in marine species with long dispersal capabilities. Although genetic interchange occurs widely in Paracentrotus lividus, the species is sensitive to dispersal barriers, displays isolation by distance and faces local selective pressures associated to environmental conditions, all of which can render it more vulnerable than previously thought.

Forlag
Wiley
Sitering
Carreras, García-Cisneros A, Wangensteen Fuentes OS, Ordóñez, Palacín C, Pascual, Turon X. East is East and West is West: Population genomics and hierarchical analyses reveal genetic structure and adaptation footprints in the keystone species Paracentrotus lividus (Echinoidea). Diversity and Distributions: A journal of biological invasions and biodiversity. 2020;26:382-398
Metadata
Vis full innførsel
Samlinger
  • Artikler, rapporter og annet (Norges fiskerihøgskole) [1053]
Copyright 2019 The Author(s)

Bla

Bla i hele MuninEnheter og samlingerForfatterlisteTittelDatoBla i denne samlingenForfatterlisteTittelDato
Logg inn

Statistikk

Antall visninger
UiT

Munin bygger på DSpace

UiT Norges Arktiske Universitet
Universitetsbiblioteket
uit.no/ub - munin@ub.uit.no

Tilgjengelighetserklæring

 
Picked up by 5 news outlets
Blogged by 1
Posted by 15 X users
91 readers on Mendeley
See more details