Data/hora: 01/06/2024 01:30:05

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Effect of ploidy on the mortality of Crassostrea gigas spat caused by OsHV-1 in France using unselected and selected OsHV-1 resistant oysters
Autores: | Degremont, Lionel; Ledu, Christophe; Maurouard, Elise; Nourry, Max; Benabdelmouna, Abdellah.
Data: | 2016-03
Ano: | 2016
Palavras-chave: | Diploid; Triploid; Mortality; Crassostrea gigas; Ostreid herpesvirus OsHV-1.
Resumo: | The effect of ploidy on the mortality of Crassostrea gigas spat caused by the ostreid herpesvirus (OsHV-1) genotype μVar was investigated at five sites along the Atlantic coast in France in 2011. Sibling diploids and triploids were produced using either unselected or selected OsHV-1-resistant oysters. No significant interactions were found between the factors of environment, genotype and ploidy at the endpoint dates. The mean mortality rates at the sites were 62 and 59% for diploids and triploids, respectively, and the two rates were not significantly different. The mean mortality rates were 33 and 32% for sibling diploids and triploids, respectively, when OsHV-1-resistant parents were used, and 91 and 85%, respectively, when unselected parents were used. The results were confirmed through other broodstocks tested in 2013. Our study is the first to clearly show that mortality related to OsHV-1 is similar between diploids and triploids in C. gigas when the same germplasm is used for both ploidy. Furthermore, OsHV-1 resistance was not substantially altered by triploidization, indicating that the achieved selective breeding of diploid oysters for OsHV-1 resistance can be translated into improved survival in triploids.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00199/31028/29427.pdf

DOI:10.1111/are.12536

http://archimer.ifremer.fr/doc/00199/31028/

Editor: | Wiley-blackwell
Formato: | application/pdf
Fonte: | Aquaculture Research (1355-557X) (Wiley-blackwell), 2016-03 , Vol. 47 , N. 3 , P. 777-786

Fonte:

2014 John Wiley &amp; Sons Ltd

info:eu-repo/semantics/openAccess

restricted use