An amylase gene polymorphism is associated with growth differences in the Pacific cupped oyster Crassostrea gigas

Type Article
Date 2006-08
Language English
Author(s) Prudence Marie1, Moal Jeanne1, Boudry PierreORCID2, Daniel Jean-Yves1, Quere Claudie1, Jeffroy Fanny1, Mingant Christian1, Ropert MichelORCID3, Bedier Edouard4, Van Wormhoudt A5, Samain Jean-Francois1, Huvet ArnaudORCID1
Affiliation(s) 1 : IFREMER, Ctr Brest, UMR100, F-29280 Plouzane, France.
2 : IFREMER, LGP, F-17390 La Tremblade, France.
3 : IFREMER, LERN, F-14520 Port En Bessin, France.
4 : IFREMER, LERMPL, F-56470 La Trinite, France.
5 : MNHN, UMR5178, F-29900 Concarneau, France.
Source Animal Genetics (0268-9146) (Blackwell science), 2006-08 , Vol. 37 , N. 4 , P. 348-351
DOI 10.1111/j.1365-2052.2006.01481.x
WOS© Times Cited 35
Keyword(s) Growth, Genotype, Digestive enzyme, Bivalve, Alpha amylase
Abstract 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.
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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 (2006). An amylase gene polymorphism is associated with growth differences in the Pacific cupped oyster Crassostrea gigas. Animal Genetics, 37(4), 348-351. Publisher's official version : https://doi.org/10.1111/j.1365-2052.2006.01481.x , Open Access version : https://archimer.ifremer.fr/doc/00000/1691/