Subspecies-informative SNP assays for evaluating introgression between native golden trout and introduced rainbow trout

• Published in: Molecular ecology resources Vol. 9; no. 1; pp. 339 - 343
• Main Authors: STEPHENS, MOLLY R, CLIPPERTON, NEIL W, MAY, BERNIE
• Format: Journal Article
• Language: English
• Published: Oxford, UK Oxford, UK : Blackwell Publishing Ltd 2009; Blackwell Publishing Ltd
• Subjects: ancestry-informative markers; hybridization; Oncorhynchus mykiss; single nucleotide polymorphism; SNP
• ISSN: 1755-0998; 1755-098X; 1755-0998
• DOI: 10.1111/j.1755-0998.2008.02407.x

We characterize 20 single nucleotide polymorphism assays for evaluating hybridization between native golden trout subspecies (Oncorhynchus mykiss aguabonita and O. m. whitei) and introduced rainbow trout strains. These assays utilize the 5'-nuclease reaction, facilitating high-throughput genotyping of many individuals and making them useful in quantifying and monitoring introgression and potentially applicable to studies of other O. mykiss groups. Minor allele frequency differentials (δq) among native and introduced rainbow groups ranged from 0 to 1, with an average differential of 0.75 for both subspecies aguabonita and whitei relative to the hatchery rainbow trout strain.