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Assessing wild genetic background and parental effects on size of growth hormone transgenic coho salmon
Fisheries & Oceans Canada, 4160 Marine Dr, W Vancouver, BC V7V 1N6, Canada.;EKM Sci Consulting, 730 Drake St, Nanaimo, BC V9S 2T1, Canada..
Fisheries & Oceans Canada, 4160 Marine Dr, W Vancouver, BC V7V 1N6, Canada..
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Biology Education Centre. Fisheries & Oceans Canada, 4160 Marine Dr, W Vancouver, BC V7V 1N6, Canada..ORCID iD: 0000-0002-3157-7289
Fisheries & Oceans Canada, 4160 Marine Dr, W Vancouver, BC V7V 1N6, Canada..
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2022 (English)In: Canadian Journal of Fisheries and Aquatic Sciences, ISSN 0706-652X, E-ISSN 1205-7533, Vol. 79, no 5, p. 803-813Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Canadian Science Publishing , 2022. Vol. 79, no 5, p. 803-813
National Category
Ecology Zoology
Identifiers
URN: urn:nbn:se:uu:diva-478357DOI: 10.1139/cjfas-2021-0153ISI: 000788290800001OAI: oai:DiVA.org:uu-478357DiVA, id: diva2:1675044
Available from: 2022-06-22 Created: 2022-06-22 Last updated: 2022-06-22Bibliographically approved

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