Consulta: creatorFacets:"Chaves, R."
Registros recuperados: 2
Data/hora: 01/06/2024 18:12:37

Impact of atrazine on somatic aneuploidy in cupped oysters, Crassostrea gigas
Provedor de dados: 5
Autores: Bouilly, Karine; Leitao, Alexandra; Mccombie, Helen; Chaves, R.; Guedes Pinto, H; Boudry, Pierre; Lapegue, Sylvie.
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
Tipo: Text
Palavras-chave: Genetic; Aneuploidy; Toxicology; Impact; Atrazine; Crassostrea gigas; Pacific oysters.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/acte-3489.pdf

Chromosomal organization of simple sequence repeats in the Pacific oyster (Crassostrea gigas): (GGAT)(4), (GT)(7) and (TA)(10) chromosome patterns
Provedor de dados: 5
Autores: Bouilly, Karine; Chaves, R.; Leitao, A.; Benabdelmouna, Abdellah; Guedes Pinto, H.
Chromosome identification is essential in oyster genomic research. Fluorescence in situ hybridization (FISH) offers new opportunities for the identification of oyster chromosomes. It has been used to locate satellite DNAs, telomeres or ribosomal DNA sequences. However, regarding chromosome identification, no study has been conducted with simple sequence repeats (SSRs). FISH was used to probe the physical organization of three particular SSRs, (GGAT)(4), (GT)(7) and (TA)(10) onto metaphase chromosomes of the Pacific oyster, Crassostrea gigas. Hybridization signals were observed in all the SSR probes, but the distribution and intensity of signals varied according to the oligonucleotide repeat. The intercalary, centromeric and telomeric bands were observed...
Tipo: Text
Palavras-chave: Simple sequence repeats (SSRs); Mollusks; Fluorescence in situ hybridization (FISH); Crassostrea gigas; Chromosome identification.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6132.pdf