{"refrec":{"BRefID":29344,"RR":"<b>Huvet, A.; Gérard, A.; Ledu, C.; Phélipot, P.; Heurtebise, S.; Boudry, P.</b> (2002). Is fertility of hybrids enough to conclude that the two oysters <i>Crassostrea gigas</i> and <i>Crassostrea angulata</i> are the same species? <i>Aquat. Living Resour. 15(1)</i>: 45-52. <a href=\"http://dx.doi.org/10.1016/S0990-7440(01)01148-2\" target=\"_blank\">http://dx.doi.org/10.1016/S0990-7440(01)01148-2</a>","BEntID":29344,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":" <i>Aquat. Living Resour. 15(1)</i>: 45-52. <a href=\"http://dx.doi.org/10.1016/S0990-7440(01)01148-2\" target=\"_blank\">http://dx.doi.org/10.1016/S0990-7440(01)01148-2</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Huvet, A.; Gérard, A.; Ledu, C.; Phélipot, P.; Heurtebise, S.; Boudry, P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Huvet, A. <i>et al.</i>","Englishabstract":"The distinction of the two cupped oysters <i>Crassostrea gigas</i> (Thunberg, 1793) and <i>Crassostrea angulata</i> (Lamark, 1819) into two species was chiefly due to their differing geographical distributions, <i>C. gigas</i> being present in Asia and <i>C. angulata</i> in Europe. Today it is commonly accepted that <i>C. angulata</i> and <i>C. gigas</i> are a single species according to morphological, genetic and F1 hybridization data. However, the demonstration of the fertility of their hybrids and the absence of any reproductive isolation remained to be investigated. Consequently, we studied the fertility of hybrids and sperm competition by performing three different experiments and producing G1 and G2 hybrid progenies between wild populations of <i>C. angulata</i> and <i>C. gigas</i>. Progenies showed very close developmental yields, at 24 hours after fertilization, according to dam taxa suggesting a strong maternal transmission of oocyte quality, but no reproductive isolation was observed between the two taxa. Significant decreases of developmental yields were noticed in <i>C. angulata</i> females with sperm competition, most probably due to early larval mortality. The fertility of hybrids <i>C. angulata</i> × <i>C. gigas</i> was demonstrated, which is further evidence that they are the same species. To definitively state the precise taxonomic classification of <i>C. angulata</i> and <i>C. gigas</i>, further studies are needed to (i) identify geographical zones where these taxa are in contact and (ii) assess their level of hybridization in these zones.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Is fertility of hybrids enough to conclude that the two oysters <i>Crassostrea gigas</i> and <i>Crassostrea angulata</i> are the same species?","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-15 01:31:40.814855","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":"Hybridization; Controlled crosses; Fertility; Developmental yields of larvae; <i>Crassostrea gigas</i>; <i>Crassostrea angulata</i>","Notes":null,"AnaPub":2002,"MonPub":null,"DateUpdate":"2015-08-28","DateCreate":"2002-11-12","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000174837000005","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/S0990-7440(01)01148-2"},"refs":null,"anarec":{"AnaID":29344,"PubliDate":2002,"Pagination":"45-52","XtraPublOfAnaID":null,"ISBN":null,"Volume":"15","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42199,"SerRR":"Aquatic Living Resources = Ressources Vivantes Aquatiques. Elsevier: Montrouge.  ISSN 0990-7440; e-ISSN 1765-2952","StandardTitleSer":"Aquatic Living Resources = Ressources Vivantes Aquatiques","ISSN":"0990-7440","AbbrevSer":"Aquat. Living Resour.","StandardTitleMon":null,"StartPage":45,"Pages":8,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":{"Line1":"Ifremer, BP 133","Email":"pboudry@ifremer.fr","Line2":null,"EnvName":"France"},"othpubs":null,"ownerships":null,"authors":[{"AutName":"Huvet","Firstname":"Arnaud","Initials":"A.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":29344,"AutID":31941,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Gérard","Firstname":null,"Initials":"A.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":29344,"AutID":18570,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Ledu","Firstname":"Christophe","Initials":"C.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":29344,"AutID":31943,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Phélipot","Firstname":"Pascal","Initials":"P.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":29344,"AutID":31944,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Heurtebise","Firstname":"Serge","Initials":"S.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":29344,"AutID":31945,"OrderNr":5,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Boudry","Firstname":"Pierre","Initials":"P.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":29344,"AutID":31946,"OrderNr":6,"DegrID":null,"EditorFlag":0,"CorrespFlag":1,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":276332,"LibID":36,"BRefID":29344,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"276332","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"<p>Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site <br />en mag op geen enkele manier verder worden verspreid.</p>","FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Elsevier","City":"Montrouge"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"Controlled conditions","ThestID":1856,"Acronym":"ASFA","ThesTermPath":"Controlled conditions"},{"ThesaurusTerm":"Larvae","ThestID":4630,"Acronym":"ASFA","ThesTermPath":"Developmental stages > Larvae"},{"ThesaurusTerm":"Fertility","ThestID":3082,"Acronym":"ASFA","ThesTermPath":"Fertility"},{"ThesaurusTerm":"Hybridization","ThestID":4075,"Acronym":"ASFA","ThesTermPath":"Hybridization"}],"thestermsASFA":[{"ThesaurusTerm":"Controlled conditions"},{"ThesaurusTerm":"Fertility"},{"ThesaurusTerm":"Hybridization"},{"ThesaurusTerm":"Larvae"}],"taxtermsASFA":[{"TaxTerm":"Crassostrea angulata"},{"TaxTerm":"Crassostrea gigas"}],"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":null,"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":29344,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":29344,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"http://dx.doi.org/10.1016/S0990-7440(01)01148-2","externalID":"10.1016/S0990-7440(01)01148-2","URLTypeCode":"DOI","URLID":41325,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":[{"ThesaurusTerm":"Controlled conditions","ThestID":1856,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Fertility","ThestID":3082,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Hybridization","ThestID":4075,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Larvae","ThestID":4630,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":[{"TaxTerm":"Crassostrea angulata","AphiaID":146900,"TaxtID":23409},{"TaxTerm":"Crassostrea gigas [Portuguese oyster]","AphiaID":836033,"TaxtID":22937}],"geoterms":null,"othterms":[{"OtherTerm":"Controlled crosses","OthtID":5475},{"OtherTerm":"Developmental yields of larvae","OthtID":9592}],"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"Controlled conditions","DutchTerm":null,"ThestID":1856,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Fertility","DutchTerm":null,"ThestID":3082,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Hybridization","DutchTerm":"Hybridisatie","ThestID":4075,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Larvae","DutchTerm":"Larven","ThestID":4630,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":[{"TaxTerm":"Crassostrea angulata","DutchTerm":"Portugese oester","AphiaID":146900,"TaxtID":23409},{"TaxTerm":"Crassostrea gigas","DutchTerm":"Japanse oester","AphiaID":836033,"TaxtID":22937}],"geotermsFRIS":null,"othtermsFRIS":[{"OtherTerm":"Controlled crosses","DutchTerm":null,"OthtID":5475},{"OtherTerm":"Developmental yields of larvae","DutchTerm":null,"OthtID":9592}],"resmessage":"","complete":1,"sessions":{"newSesName":"Chisala, Chilekwa, C.","newSesDate":{"date":"2002-11-12 14:36:37.040000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Haspeslagh, Jan, J.","updSesDate":{"date":"2015-08-28 08:35:02.073000","timezone_type":3,"timezone":"Europe/Brussels"}}}