Out of the mediterranean?: Post-glacial colonization pathways varied among cold-water coral species

Aim To infer cold-water corals’ (CWC) post-glacial phylogeography and assess the role of Mediterranean Sea glacial refugia as origins for the recolonization of the northeastern Atlantic Ocean. Location Northeastern Atlantic Ocean and Mediterranean Sea. Taxon Lophelia pertusa, Madrepora oculata. Meth...

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Hauptverfasser: Boavida, Joana (VerfasserIn) , Becheler, Ronan (VerfasserIn) , Choquet, Marvin (VerfasserIn) , Frank, Norbert (VerfasserIn) , Taviani, Marco (VerfasserIn) , Bourillet, Jean-François (VerfasserIn) , Meistertzheim, Anne-Leila (VerfasserIn) , Grehan, Anthony (VerfasserIn) , Savini, Alessandra (VerfasserIn) , Arnaud‐Haond, Sophie (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 1 March 2019
In: Journal of biogeography
Year: 2019, Jahrgang: 46, Heft: 5, Pages: 915-931
ISSN:1365-2699
DOI:10.1111/jbi.13570
Online-Zugang:Verlag, Volltext: https://doi.org/10.1111/jbi.13570
Verlag: https://onlinelibrary.wiley.com/doi/abs/10.1111/jbi.13570
Volltext
Verfasserangaben:Joana Boavida, Ronan Becheler, Marvin Choquet, Norbert Frank, Marco Taviani, Jean-François Bourillet, Anne-Leila Meistertzheim, Anthony Grehan, Alessandra Savini, Sophie Arnaud‐Haond

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245 1 0 |a Out of the mediterranean?  |b Post-glacial colonization pathways varied among cold-water coral species  |c Joana Boavida, Ronan Becheler, Marvin Choquet, Norbert Frank, Marco Taviani, Jean-François Bourillet, Anne-Leila Meistertzheim, Anthony Grehan, Alessandra Savini, Sophie Arnaud‐Haond 
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520 |a Aim To infer cold-water corals’ (CWC) post-glacial phylogeography and assess the role of Mediterranean Sea glacial refugia as origins for the recolonization of the northeastern Atlantic Ocean. Location Northeastern Atlantic Ocean and Mediterranean Sea. Taxon Lophelia pertusa, Madrepora oculata. Methods We sampled CWC using remotely operated vehicles and one sediment core for coral and sediment dating. We characterized spatial genetic patterns (microsatellites and a nuclear gene fragment) using networks, clustering and measures of genetic differentiation. Results Inferences from microsatellite and sequence data were congruent, and showed a contrast between the two CWC species. Populations of L. pertusa present a dominant pioneer haplotype, local haplotype radiations and a majority of endemic variation in lower latitudes. Madrepora oculata populations are differentiated across the northeastern Atlantic and genetic lineages are poorly admixed even among neighbouring sites. Conclusions Our study shows contrasting post-glacial colonization pathways for two key habitat-forming species in the deep sea. The CWC L. pertusa has likely undertaken a long-range (post-glacial) recolonization of the northeastern Atlantic directly from refugia located along southern Europe (Mediterranean Sea or Gulf of Cadiz). In contrast, the stronger genetic differentiation of M. oculata populations mirrors the effects of long-term isolation in multiple refugia. We suggest that the distinct and genetically divergent, refugial populations initiated the post-glacial recolonization of the northeastern Atlantic margins, leading to a secondary contact in the northern range and reaching higher latitudes much later, in the late Holocene. This study highlights the need to disentangle the influences of present-day dispersal and evolutionary processes on the distribution of genetic polymorphisms, to unravel the influence of past and future environmental changes on the connectivity of cosmopolitan deep-sea ecosystems associated with CWC. 
650 4 |a cold-water corals 
650 4 |a deep-sea 
650 4 |a glacial marine refugia 
650 4 |a Last Glacial Maximum 
650 4 |a Lophelia pertusa 
650 4 |a Madrepora oculata 
650 4 |a marine phylogeography 
700 1 |a Becheler, Ronan  |e VerfasserIn  |4 aut 
700 1 |a Choquet, Marvin  |e VerfasserIn  |4 aut 
700 1 |a Frank, Norbert  |e VerfasserIn  |0 (DE-588)1051504414  |0 (DE-627)786371323  |0 (DE-576)406597235  |4 aut 
700 1 |a Taviani, Marco  |e VerfasserIn  |4 aut 
700 1 |a Bourillet, Jean-François  |e VerfasserIn  |4 aut 
700 1 |a Meistertzheim, Anne-Leila  |e VerfasserIn  |4 aut 
700 1 |a Grehan, Anthony  |e VerfasserIn  |4 aut 
700 1 |a Savini, Alessandra  |e VerfasserIn  |4 aut 
700 1 |a Arnaud‐Haond, Sophie  |e VerfasserIn  |4 aut 
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