Investigation of genomic approaches for management of early maturation in farmed Atlantic salmon

养殖大西洋鲑鱼早期成熟管理的基因组方法研究

• 批准号: 492643-2015
• 负责人: Plastow, Graham
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=602124
• 关键词: Investigation; genomic; approaches; management; early

Early maturation of salmon, called "grilsing" is a significant problem for the industry as it reduces the eating quality of the fish. Salmon breeding programs are designed to reduce early maturation at the same time as decreasing days to market and increasing survivability to market weight. In 2015 ocean net pen sites located around Vancouver Island experienced significant differences in water temperatures resulting in varying rates of early maturation between production areas. Previous research has found variation in maturity to have a moderately heritable genetic predisposition. This project is designed to assist Cermaq Canada (who have been breeding Atlantic salmon since 1995) to develop a genomic strategy for the selection of decreased rates of early maturation in production populations while maintaining the desirable characteristics of the breeding population, and accounting for differences in environment.

鲑鱼的早熟，被称为“烧烤”，是该行业的一个重大问题，因为它降低了鱼的食用质量。三文鱼育种计划旨在减少早熟，同时减少上市天数，增加市场重量的生存能力。2015年，位于温哥华岛周围的海洋网围栏站点经历了水温的显著差异，导致生产区域之间的早熟率不同。先前的研究发现，成熟度的变化具有适度的遗传倾向。该项目旨在协助加拿大Cermaq公司（自1995年以来一直在养殖大西洋鲑鱼）制定一项基因组战略，以选择降低生产种群早熟率，同时保持养殖种群的理想特征，并考虑环境差异。