Consulta: creatorFacets:"Haley, C. S."
Registros recuperados: 2
Data/hora: 04/06/2024 05:22:20

QTL for resistance to summer mortality and OsHV-1 load in the Pacific oyster (Crassostrea gigas)
Provedor de dados: 5
Autores: Sauvage, Christopher; Boudry, Pierre; De Koning, D. -j.; Haley, C. S.; Heurtebise, Serge; Lapegue, Sylvie.
P&gt;Summer mortality is a phenomenon severely affecting the aquaculture production of the Pacific oyster (Crassostrea gigas). Although its causal factors are complex, resistance to mortality has been described as a highly heritable trait, and several pathogens including the virus Ostreid Herpes virus type 1 (OsHV-1) have been associated with this phenomenon. A QTL analysis for survival of summer mortality and OsHV-1 load, estimated using real-time PCR, was performed using five F-2 full-sib families resulting from a divergent selection experiment for resistance to summer mortality. A consensus linkage map was built using 29 SNPs and 51 microsatellite markers. Five significant QTL were identified and assigned to linkage groups V, VI, VII and IX. Analysis of...
Tipo: Text
Palavras-chave: Crassostrea gigas; Herpes virus; Pacific oyster; QTL mapping; Summer mortality.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12241/9063.pdf

Combining Two-Stage Testing and Interval Mapping Strategies to Detect QTL for Resistance to Bonamiosis in the European Flat Oyster Ostrea edulis
Provedor de dados: 5
Autores: Lallias, Delphine; Gomez-raya, L.; Haley, C. S.; Arzul, Isabelle; Heurtebise, Serge; Beaumont, A. R.; Boudry, Pierre; Lapegue, Sylvie.
We have identified quantitative trait loci (QTL) in the flat oyster (Ostrea edulis) for resistance to Bonamia ostreae, a parasite responsible for the dramatic reduction in the aquaculture of this species. An F-2 family from a cross between a wild oyster and an individual from a family selected for resistance to bonamiosis was cultured with wild oysters injected with the parasite, leading to 20% cumulative mortality. Selective genotyping of 92 out of a total of 550 F-2 progeny (i.e., 46 heavily infected oysters that died and 46 parasite-free oysters that survived) was performed using 20 microsatellites and 34 amplification fragment length polymorphism primer pairs. Both a two-stage testing strategy and QTL interval mapping methods were used. The two-stage...
Tipo: Text
Palavras-chave: Statistical power; Survival analysis; QTL mapping; Disease resistance; Ostrea edulis.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6682.pdf