Genetic Markers for Tracing Introgression of Farmed Atlantic Salmon (Salmo salar) in Wild Conspecifics.

ABSTRACT: Genetic introgression of domesticated plants and animals into wild populations occurs globally. Such introgression disrupts adaptive potential, reduces fitness in wild populations and threatens intraspecific genetic variation. The best-documented case of farmed introgression into wild populations is that of the Atlantic salmon (Salmo salar). Norway is the world's largest producer of farmed Atlantic salmon, and the industry is growing in Iceland and other countries. In Norway, genetic introgression resulting from farmed escapees breeding with wild conspecifics has been documented in approximately two-thirds of 250 salmon populations studied. This comprehensive quantification has been possible due to a panel of genetic markers diagnostic of farmed introgression. Improved genomic resources, c

SUBMITTER: Hagen IJ 

PROVIDER: S-EPMC12627911 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature