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 b...

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Autores principales:	Stefania Chiesa, Livia Lucentini, Paula Chainho, Federico Plazzi, Maria Manuel Angélico, Francisco Ruano, Rosa Freitas, José Lino Costa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Crassostrea angulata</i> Portuguese oyster mtDNA <i>cox1</i> phylogeography phylogenetics Science Q
Acceso en línea:	https://doaj.org/article/236acf2e2caa45959f9a8a0242165e8d
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spelling	oai:doaj.org-article:236acf2e2caa45959f9a8a0242165e8d2021-11-25T18:10:54ZOne in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)10.3390/life111111732075-1729https://doaj.org/article/236acf2e2caa45959f9a8a0242165e8d2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-1729/11/11/1173https://doaj.org/toc/2075-1729The production of cupped oysters is an important component of European aquaculture. Most of the production relies on the cultivation of the Pacific oyster <i>Crassostrea gigas</i>, although the Portuguese oyster <i>Crassostrea angulata</i> 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 <i>cox1</i> 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.Stefania ChiesaLivia LucentiniPaula ChainhoFederico PlazziMaria Manuel AngélicoFrancisco RuanoRosa FreitasJosé Lino CostaMDPI AGarticle<i>Crassostrea angulata</i>Portuguese oystermtDNA<i>cox1</i>phylogeographyphylogeneticsScienceQENLife, Vol 11, Iss 1173, p 1173 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Crassostrea angulata</i> Portuguese oyster mtDNA <i>cox1</i> phylogeography phylogenetics Science Q
spellingShingle	<i>Crassostrea angulata</i> Portuguese oyster mtDNA <i>cox1</i> phylogeography phylogenetics Science Q Stefania Chiesa Livia Lucentini Paula Chainho Federico Plazzi Maria Manuel Angélico Francisco Ruano Rosa Freitas José Lino Costa One in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)
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 <i>Crassostrea gigas</i>, although the Portuguese oyster <i>Crassostrea angulata</i> 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 <i>cox1</i> 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.
format	article
author	Stefania Chiesa Livia Lucentini Paula Chainho Federico Plazzi Maria Manuel Angélico Francisco Ruano Rosa Freitas José Lino Costa
author_facet	Stefania Chiesa Livia Lucentini Paula Chainho Federico Plazzi Maria Manuel Angélico Francisco Ruano Rosa Freitas José Lino Costa
author_sort	Stefania Chiesa
title	One in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)
title_short	One in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)
title_full	One in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)
title_fullStr	One in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)
title_full_unstemmed	One in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)
title_sort	one in a million: genetic diversity and conservation of the reference <i>crassostrea angulata</i> population in europe from the sado estuary (portugal)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/236acf2e2caa45959f9a8a0242165e8d
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One in a Million: Genetic Diversity and Conservation of the Reference <i>Crassostrea angulata</i> Population in Europe from the Sado Estuary (Portugal)

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