Data/hora: 18/05/2024 00:43:18

Provedor de dados: 	5	
País: 	France	
Título: 	An amylase gene polymorphism is associated with growth differences in the Pacific cupped oyster Crassostrea gigas	
Autores: 	Prudence, Marie; Moal, Jeanne; Boudry, Pierre; Daniel, Jean-yves; Quere, Claudie; Jeffroy, Fanny; Mingant, Christian; Ropert, Michel; Bedier, Edouard; Van Wormhoudt, A; Samain, Jean-francois; Huvet, Arnaud.	
Data: 	2006-08	
Ano: 	2006	
Palavras-chave: 	Growth; Genotype; Digestive enzyme; Bivalve; Alpha amylase.	
Resumo: 	This study investigated the non-neutrality of genetic polymorphism in two alpha-amylase genes (AMYA and AMYB) in the oyster Crassostrea gigas. Bi-parental oyster families, bred to be polymorphic for markers in these genes, were monitored for growth and survival for 1 year under standard culture conditions in two French production sites. Within-family genotype frequencies indicated that the two amylase genes were closely linked (c. 1.7 cM). Within two of three families, significant differences in growth were observed between genotypes at one of the two production sites, suggesting that this polymorphism is not neutral and might be under selection because of its role in digestive function. Estimated daily yields were different between amylase genotypes, indicating the potential value of amylase markers in selective breeding programmes to improve oyster growth.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/2006/publication-1691.pdf

DOI:10.1111/j.1365-2052.2006.01481.x	
Editor: 	Blackwell science	
Relação: 	http://archimer.ifremer.fr/doc/00000/1691/	
Formato: 	application/pdf	
Fonte: 	Animal Genetics (0268-9146) (Blackwell science), 2006-08 , Vol. 37 , N. 4 , P. 348-351	
Fonte: 	2006 Blackwell