QTL mapping provides new insights into emamectin benzoate resistance in salmon lice, Lepeophtheirus salmonis.

ABSTRACT:

Background

The salmon louse (Lepeophtheirus salmonis) is a parasite of wild and farmed salmonid fish, causing huge economic damage to the commercial farming of Atlantic salmon (Salmo salar) in the northern hemisphere. The avermectin emamectin benzoate (EMB) is widely used for salmon delousing. While resistance to EMB is widespread in Atlantic populations of L. salmonis, the molecular mechanisms of resistance remain to be elucidated. The aim of the present work was to obtain insights into potential EMB resistance mechanisms by identifying genetic and transcriptomic markers associated with EMB resistance.

Results

Crosses were performed between EMB-susceptible and -resistant L. salmonis, sourced from two parental strains isolated in Scotland, producing fully pedigreed families.

SUBMITTER: Sturm A 

PROVIDER: S-EPMC11657612 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature