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Comparative study of shell shape and muscle scar pigmentation in the closely related cupped oysters Crassostrea angulata, C-gigas and their reciprocal hybrids

2008-03Journal article Open Access
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dc.contributor.authorBatista, Frederico M.
dc.contributor.authorBen-Hamadou, Radhouan
dc.contributor.authorVera G Fonseca
dc.contributor.authorTaris, Nicolas
dc.contributor.authorRuano, Francisco
dc.contributor.authorReis-Henriques, Maria A.
dc.contributor.authorBoudry, Pierre
dc.date.accessioned2018-12-07T14:53:14Z
dc.date.available2018-12-07T14:53:14Z
dc.date.issued2008-03
dc.description.abstractThe taxonomic status of the cupped oysters Crassostrea angulata and C. gigas has received considerable attention in the last decades. Based on larval shell morphology, experimental hybridization, allozymes and nuclear DNA studies several authors have considered these two taxa as being synonymous. However, mitochondrial data showed clear genetic differences between the two taxa. In addition, microsatellite- based studies and cytogenetic studies have also provided evidence that supports their differentiation. Considerable differences have also been observed at the phenotypic level in terms of growth rate and ecophysiological parameters. In the present study, C. angulata from Sado estuary ( Portugal) and C. gigas from Seudre estuary ( France) were collected and factorial crosses were performed. Juveniles of the different progenies were reared in Ria Formosa ( Portugal) under common conditions to determine if they exhibited differences in shell shape and in pigmentation of the adductor muscle scar. Significant morphometric differences between C. angulata and C. gigas progenies were indicated by univariate and multivariate analyses. Univariate analysis of size- adjusted shell measurements revealed significant differences between the two taxa for shell depth, muscle scar height, and length of ligamental area. Both reciprocal hybrids showed intermediate morphometric characters between parental lines. In addition, significant differences were also observed between C. angulata and C. gigas progenies in terms of pigmentation of adductor muscle scar. C. angulata and both reciprocal hybrid progenies showed highly pigmented adductor muscle scars whereas in C. gigas progeny the pigmentation was lighter. The differences in shell shape and muscle scar pigmentation observed in the present study support the distinction of the two taxa.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1051/alr:2008019
dc.identifier.issn0990-7440
dc.identifier.urihttp://hdl.handle.net/10400.1/11418
dc.language.isoeng
dc.peerreviewedyes
dc.publisherEdp Sciences S A
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectPacific oyster
dc.subjectMytilus-Trossulus
dc.subjectPortuguese oyster
dc.subjectOstreidae
dc.subjectBivalvia
dc.subjectMitochondrial
dc.subjectGenetics
dc.subjectGrowth
dc.subjectPopulations
dc.subjectAquaculture
dc.titleComparative study of shell shape and muscle scar pigmentation in the closely related cupped oysters Crassostrea angulata, C-gigas and their reciprocal hybrids
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage38
oaire.citation.issue1
oaire.citation.startPage31
oaire.citation.titleAquatic Living Resources
oaire.citation.volume21
person.familyNameBatista
person.familyNameBen-Hamadou
person.familyNameFonseca
person.givenNameFrederico
person.givenNameRadhouan
person.givenNameVera
person.identifier.ciencia-idCB1B-7DBC-6303
person.identifier.orcid0000-0002-2848-3011
person.identifier.orcid0000-0003-2686-5822
person.identifier.orcid0000-0002-5068-6253
person.identifier.ridF-5651-2010
person.identifier.ridF-8192-2011
person.identifier.scopus-author-id7003808684
person.identifier.scopus-author-id15764751100
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationd564e68d-a75e-458f-add4-bdb0739cde8d
relation.isAuthorOfPublication2f32d19a-b0ef-4021-a7da-e67ce80fb319
relation.isAuthorOfPublicationbb3729f1-e034-4e77-b4bb-2b65fe71b055
relation.isAuthorOfPublication.latestForDiscovery2f32d19a-b0ef-4021-a7da-e67ce80fb319

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