期刊
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
卷 79, 期 5, 页码 803-813出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/cjfas-2021-0153
关键词
-
资金
- Canadian Regulatory System for Biotechnology (Fisheries and Oceans Canada)
This study examines the effects of genetic backgrounds on the growth of transgenic and nontransgenic coho salmon. The results show significant differences in size among offspring from different river systems, independent of transgenotypes. The effects of strain or sire were relatively small compared to the consistent effects of the transgene. Findings from this study provide useful information for assessing potential risks of transgenic salmon in different populations.
Experiments examining potential impacts of growth hormone (GH) transgenesis in fish typically use a single source strain and do not address potential differential impacts in strains of different genetic backgrounds. Here, we examine the effects of differing genetic backgrounds when reared in culture on the growth of transgenic and nontransgenic coho salmon (Oncorhynchus kisutch ) produced by mating sires from different rivers with transgenic dams from a single origin. We found a significant difference in size between offspring of sires originating from various river systems in British Columbia. This difference was independent of differences between transgenotypes (i.e., transgenic vs. nontransgenic offspring). However, the effects of strain or sire were relatively small compared to the effects of the transgene, which were consistent regardless of sire origin. Thus, results derived from studies of GH transgenic fish from a single source population can provide useful information for assessments of GH transgenic salmon from other systems. This has important implications for examining potential risks from introgression of a transgene into different populations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据