| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| 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
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| Autores: |
Degremont, Lionel
Ledu, Christophe
Maurouard, Elise
Nourry, Max
Benabdelmouna, Abdellah
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| Data: |
2016-03
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| Ano: |
2016
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| Palavras-chave: |
Diploid
Triploid
Mortality
Crassostrea gigas
Ostreid herpesvirus OsHV-1
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| 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.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00199/31028/29427.pdf
DOI:10.1111/are.12536
http://archimer.ifremer.fr/doc/00199/31028/
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| Editor: |
Wiley-blackwell
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| Formato: |
application/pdf
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| Fonte: |
Aquaculture Research (1355-557X) (Wiley-blackwell), 2016-03 , Vol. 47 , N. 3 , P. 777-786
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| Direitos: |
2014 John Wiley & Sons Ltd
info:eu-repo/semantics/openAccess
restricted use
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