Development and evaluation of SNP panels for the detection of hybridization between wild and escaped Atlantic salmon (Salmo salar) in the West Atlantic

• Main Authors: Wringe, Brendan F., Anderson, Eric C, Jeffery, Nicholas W., Stanley, Ryan R.E., Bradbury, Ian R
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: NRC Research Press (a division of Canadian Science Publishing) 2018
• Subjects: Atlantic salmon; Newfoundland; Salmo salar
• Online Access: http://hdl.handle.net/1807/92794; http://www.nrcresearchpress.com/doi/abs/10.1139/cjfas-2017-0394

Hybridization between wild and escaped cultured Atlantic salmon (Salmo salar) can threaten the stability and persistence of locally adapted wild populations. Here we describe the development and validation of a genomic-based approach to quantify recent hybridization between escapee and wild salmon in the Western Atlantic. Based on genome-wide single nucleotide polymorphism (SNP) scans of wild and cultured salmon, collectively diagnostic panels were created for Newfoundland and the Canadian Maritimes. These panels were capable of both discriminating hybrids from non-hybrids, and of correctly assigning individuals to hybrid class (i.e. pure wild, pure farm, F1, F2 and backcrosses) with a high degree of accuracy (Newfoundland 96 SNPs >90%, Maritimes 720 SNPs >80%). These genomic panels permit the assessment of the impacts of past and future farmed salmon escape events on wild populations, and can inform the protection and conservation of wild Atlantic salmon genetic integrity in the western Atlantic. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author.