New insights about the introduction of the Portuguese oyster, Crassostrea angulata, into the North East Atlantic from Asia based on a highly polymorphic mitochondrial region

Type Article
Date 2016-10
Language English
Author(s) Grade Ana1, 2, Chairi Hicham3, Lallias Delphine4, 5, Power Deborah M.6, Ruano Francisco2, Leitao Alexandra1, 7, Drago Teresa1, 8, King Jonathan W.4, Boudry PierreORCID9, Batista Frederico M.1, 6
Affiliation(s) 1 : Inst Portugues Mar & Atmosfera, Estacao Expt Moluscicultura Tavira, Av 5 Outubro, P-8700305 Olhao, Portugal.
2 : Inst Portugues Mar & Atmosfera, Av Brasilia, P-1449006 Lisbon, Portugal.
3 : Univ Abdelmalek Essaadi, Fac Polydisciplinaire Larache, Dept Biol, BP 745, Larache 92004, Morocco.
4 : Bangor Univ, Coll Nat Sci, Ctr Appl Marine Sci, Sch Ocean Sci, Menai Bridge LL59 5AB, Gwynedd, Wales.
5 : Univ Paris Saclay, INRA, Agro Paris Tech, GABI, F-78350 Jouy En Josas, France.
6 : Univ Algarve, CCMAR, Campus Gambelas, P-8005139 Faro, Portugal.
7 : Qatar Univ, ESC, POB 2713, Doha, Qatar.
8 : Univ Lisbon, Fac Ciencias, Inst Dom Luiz, Campo Grande,Edificio C1 Piso, P-1749016 Lisbon, Portugal.
9 : IFREMER, IRD, UBO,Lab Sci Environm Marin, UMR LEMAR CNRS 6539,Unit Rech Physiol Fonct Organ, ZI Pointe Diable,CS 10070, F-29280 Plouzane, France.
Source Aquatic Living Resources (0990-7440) (Edp Sciences S A), 2016-10 , Vol. 29 , N. 4 , P. 404 (1-6)
DOI 10.1051/alr/2016035
WOS© Times Cited 9
Keyword(s) Crassostrea angulata, phylogeography, genetic signature, biological invasions
Abstract It is commonly presumed that the Portuguese oyster Crassostrea angulata was introduced into the North East (NE) Atlantic from Asia. The analysis of the nucleotide sequence of a highly polymorphic non-coding mitochondrial region (major noncoding region - MNR) of C. angulata samples collected in Europe (Portugal), Africa (Morocco) and Asia (Shantou and Taiwan) provided new insight into the introduction of this species into the NE Atlantic. Sixty haplotypes and a nucleotide diversity of 0.0077 were observed in 130 analyzed sequences. Higher nucleotide diversity levels were observed in NE Atlantic sites than in Asian sites and significant genetic differentiation was found between the two. Our results suggest that C. angulata might have been introduced to the NE Atlantic by multiple introductory events, though the exact origins remain unknown since none of the analyzed Asian sites seemed to have been a source of introduction. The nucleotide diversity of C. angulata was higher than that previously reported for Pacific oyster C. gigas in Europe and Asia for the same mitochondrial region. The results obtained in the present study suggest that NE Atlantic C. angulata stocks are a unique genetic resource, which highlights the importance of their conservation.
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Grade Ana, Chairi Hicham, Lallias Delphine, Power Deborah M., Ruano Francisco, Leitao Alexandra, Drago Teresa, King Jonathan W., Boudry Pierre, Batista Frederico M. (2016). New insights about the introduction of the Portuguese oyster, Crassostrea angulata, into the North East Atlantic from Asia based on a highly polymorphic mitochondrial region. Aquatic Living Resources, 29(4), 404 (1-6). Publisher's official version : https://doi.org/10.1051/alr/2016035 , Open Access version : https://archimer.ifremer.fr/doc/00371/48200/