Heterogeneous microgeographic genetic structure of the common cockle (Cerastoderma edule) in the Northeast Atlantic Ocean: biogeographic barriers and environmental factors.

Autor: Vera M; Department of Zoology, Genetics and Physics Anthropology, ACUIGEN Group, Faculty of Veterinary, Campus Terra, University of Santiago de Compostela, 27002, Lugo, Spain. manuel.vera@usc.es., Wilmes SB; School of Ocean Sciences, Marine Centre Wales, Bangor University, Menai Bridge, UK., Maroso F; Department of Zoology, Genetics and Physics Anthropology, ACUIGEN Group, Faculty of Veterinary, Campus Terra, University of Santiago de Compostela, 27002, Lugo, Spain., Hermida M; Department of Zoology, Genetics and Physics Anthropology, ACUIGEN Group, Faculty of Veterinary, Campus Terra, University of Santiago de Compostela, 27002, Lugo, Spain., Blanco A; Department of Zoology, Genetics and Physics Anthropology, ACUIGEN Group, Faculty of Veterinary, Campus Terra, University of Santiago de Compostela, 27002, Lugo, Spain., Casanova A; Department of Zoology, Genetics and Physics Anthropology, ACUIGEN Group, Faculty of Veterinary, Campus Terra, University of Santiago de Compostela, 27002, Lugo, Spain., Iglesias D; Centro de Investigacións Mariñas, Consellería do Mar, Xunta de Galicia, 36620, Vilanova de Arousa, Spain., Cao A; Centro de Investigacións Mariñas, Consellería do Mar, Xunta de Galicia, 36620, Vilanova de Arousa, Spain., Culloty SC; School of Biological, Earth and Environmental Sciences/Aquaculture and Fisheries Development Centre, University College Cork, North Mall, Cork, Ireland.; Environmental Research Institute, University College Cork, Cork, Ireland.; MaREI Centre, Environmental Research Institute, University College Cork, Cork, Ireland., Mahony K; School of Biological, Earth and Environmental Sciences/Aquaculture and Fisheries Development Centre, University College Cork, North Mall, Cork, Ireland.; Environmental Research Institute, University College Cork, Cork, Ireland., Orvain F; UNICAEN - UMR BOREA 'Biologie des ORganismes et Ecosystèmes Aquatiques' MNHN, UPMC, UCBN, CNRS-7208, IRD-207, University of Caen, Caen, France., Bouza C; Department of Zoology, Genetics and Physics Anthropology, ACUIGEN Group, Faculty of Veterinary, Campus Terra, University of Santiago de Compostela, 27002, Lugo, Spain., Robins PE; School of Ocean Sciences, Marine Centre Wales, Bangor University, Menai Bridge, UK., Malham SK; School of Ocean Sciences, Marine Centre Wales, Bangor University, Menai Bridge, UK., Lynch S; School of Biological, Earth and Environmental Sciences/Aquaculture and Fisheries Development Centre, University College Cork, North Mall, Cork, Ireland.; Environmental Research Institute, University College Cork, Cork, Ireland., Villalba A; Centro de Investigacións Mariñas, Consellería do Mar, Xunta de Galicia, 36620, Vilanova de Arousa, Spain.; Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871, Alcalá de Henares, Spain.; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), 48620, Plentzia, Basque Country, Spain., Martínez P; Department of Zoology, Genetics and Physics Anthropology, ACUIGEN Group, Faculty of Veterinary, Campus Terra, University of Santiago de Compostela, 27002, Lugo, Spain. paulino.martinez@usc.es.
Jazyk: angličtina
Zdroj: Heredity [Heredity (Edinb)] 2023 Oct; Vol. 131 (4), pp. 292-305. Date of Electronic Publication: 2023 Aug 18.
DOI: 10.1038/s41437-023-00646-1
Abstrakt: Knowledge of genetic structure at the finest level is essential for the conservation of genetic resources. Despite no visible barriers limiting gene flow, significant genetic structure has been shown in marine species. The common cockle (Cerastoderma edule) is a bivalve of great commercial and ecological value inhabiting the Northeast Atlantic Ocean. Previous population genomics studies demonstrated significant structure both across the Northeast Atlantic, but also within small geographic areas, highlighting the need to investigate fine-scale structuring. Here, we analysed two geographic areas that could represent opposite models of structure for the species: (1) the SW British Isles region, highly fragmented due to biogeographic barriers, and (2) Galicia (NW Spain), a putative homogeneous region. A total of 9250 SNPs genotyped by 2b-RAD on 599 individuals from 22 natural beds were used for the analysis. The entire SNP dataset mostly confirmed previous observations related to genetic diversity and differentiation; however, neutral and divergent SNP outlier datasets enabled disentangling physical barriers from abiotic environmental factors structuring both regions. While Galicia showed a homogeneous structure, the SW British Isles region was split into four reliable genetic regions related to oceanographic features and abiotic factors, such as sea surface salinity and temperature. The information gathered supports specific management policies of cockle resources in SW British and Galician regions also considering their particular socio-economic characteristics; further, these new data will be added to those recently reported in the Northeast Atlantic to define sustainable management actions across the whole distribution range of the species.
(© 2023. The Author(s), under exclusive licence to The Genetics Society.)
Databáze: MEDLINE
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