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One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal)

The production of cupped oysters is an important component of European aquaculture. Most of the production relies on the cultivation of the Pacific oyster Crassostrea gigas, although the Portuguese oyster Crassostrea angulata represents a valuable product with both cultural and economic relevance, e...

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Autores principales: Chiesa, Stefania, Lucentini, Livia, Chainho, Paula, Plazzi, Federico, Angélico, Maria Manuel, Ruano, Francisco, Freitas, Rosa, Costa, José Lino
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8625788/
https://www.ncbi.nlm.nih.gov/pubmed/34833050
http://dx.doi.org/10.3390/life11111173
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author Chiesa, Stefania
Lucentini, Livia
Chainho, Paula
Plazzi, Federico
Angélico, Maria Manuel
Ruano, Francisco
Freitas, Rosa
Costa, José Lino
author_facet Chiesa, Stefania
Lucentini, Livia
Chainho, Paula
Plazzi, Federico
Angélico, Maria Manuel
Ruano, Francisco
Freitas, Rosa
Costa, José Lino
author_sort Chiesa, Stefania
collection PubMed
description The production of cupped oysters is an important component of European aquaculture. Most of the production relies on the cultivation of the Pacific oyster Crassostrea gigas, although the Portuguese oyster Crassostrea angulata represents a valuable product with both cultural and economic relevance, especially in Portugal. The authors of the present study investigated the genetic diversity of Portuguese oyster populations of the Sado estuary, both from natural oyster beds and aquaculture facilities, through cox1 gene fragment sequencing. Then, a comparison with a wide dataset of cupped oyster sequences obtained from GenBank (up to now the widest available dataset in literature for the Portuguese oyster) was performed. Genetic data obtained from this work confirmed that the Pacific oyster does not occur in the natural oyster beds of the Sado estuary but showed that the species occasionally occurs in the oyster hatcheries. Moreover, the results showed that despite the founder effect and the bottleneck events that the Sado populations have experienced, they still exhibit high haplotype diversity. Risks are arising for the conservation of the Portuguese oyster reference populations of the Sado estuary due to the occurrence of the Pacific oyster in the local hatcheries. Therefore, researchers, local authorities, and oyster producers should work together to avoid the loss of this valuable resource.
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spelling pubmed-86257882021-11-27 One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal) Chiesa, Stefania Lucentini, Livia Chainho, Paula Plazzi, Federico Angélico, Maria Manuel Ruano, Francisco Freitas, Rosa Costa, José Lino Life (Basel) Article The production of cupped oysters is an important component of European aquaculture. Most of the production relies on the cultivation of the Pacific oyster Crassostrea gigas, although the Portuguese oyster Crassostrea angulata represents a valuable product with both cultural and economic relevance, especially in Portugal. The authors of the present study investigated the genetic diversity of Portuguese oyster populations of the Sado estuary, both from natural oyster beds and aquaculture facilities, through cox1 gene fragment sequencing. Then, a comparison with a wide dataset of cupped oyster sequences obtained from GenBank (up to now the widest available dataset in literature for the Portuguese oyster) was performed. Genetic data obtained from this work confirmed that the Pacific oyster does not occur in the natural oyster beds of the Sado estuary but showed that the species occasionally occurs in the oyster hatcheries. Moreover, the results showed that despite the founder effect and the bottleneck events that the Sado populations have experienced, they still exhibit high haplotype diversity. Risks are arising for the conservation of the Portuguese oyster reference populations of the Sado estuary due to the occurrence of the Pacific oyster in the local hatcheries. Therefore, researchers, local authorities, and oyster producers should work together to avoid the loss of this valuable resource. MDPI 2021-11-03 /pmc/articles/PMC8625788/ /pubmed/34833050 http://dx.doi.org/10.3390/life11111173 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chiesa, Stefania
Lucentini, Livia
Chainho, Paula
Plazzi, Federico
Angélico, Maria Manuel
Ruano, Francisco
Freitas, Rosa
Costa, José Lino
One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal)
title One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal)
title_full One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal)
title_fullStr One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal)
title_full_unstemmed One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal)
title_short One in a Million: Genetic Diversity and Conservation of the Reference Crassostrea angulata Population in Europe from the Sado Estuary (Portugal)
title_sort one in a million: genetic diversity and conservation of the reference crassostrea angulata population in europe from the sado estuary (portugal)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8625788/
https://www.ncbi.nlm.nih.gov/pubmed/34833050
http://dx.doi.org/10.3390/life11111173
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