Impact of atrazine on somatic aneuploidy in cupped oysters, Crassostrea gigas

• Main Authors: Bouilly, Karine, Leitao, Alexandra, Mccombie, Helen, Chaves, R., Guedes Pinto, H, Boudry, Pierre, Lapegue, Sylvie
• Format: Conference Object
• Language: English
• Published: Second B Chromosome Conference 2004
• Subjects: Genetic; Aneuploidy; Toxicology; Impact; Atrazine; Crassostrea gigas; Pacific oysters; Pacific; Pacific oyster
• Online Access: https://archimer.ifremer.fr/doc/00000/3489/3033.pdf; https://archimer.ifremer.fr/doc/00000/3489/

In the Pacific oyster, Crassostrea gigas hypodiploid aneuploid cells with 2n=19, 18 or 17 chromosomes have regularly been reported. There is a negative correlation between somatic aneuploidy and growth rate in oysters (Leitão et al., 2001a) as well as evidence for a genetic basis (Leitão et al., 2001b). Furthermore, non-random chromosome loss has been demonstrated in aneuploid karyotypes of C. gigas using the G-banding technique (Leitão et al., 2001c). This poster summarises different studies used to investigate the effects of the herbicide atrazine on the level of aneuploidy in this species