Maternal inheritance of deltamethrin resistance in the salmon louse Lepeophtheirus salmonis (Kroyer) is associated with unique mtDNA haplotypes.

ABSTRACT: Parasitic infections by the salmon louse, Lepeophtheirus salmonis (Krøyer), cause huge economic damage in salmon farming in the northern hemisphere, with combined treatment costs and production losses in 2014 having been estimated at US$ 350 million for Norway (annual production 1.25 million tonnes). The control of L. salmonis relies significantly on medicinal treatments, supplemented by non-pharmacological approaches. However, efficacy losses have been reported for several delousing agents, including the pyrethroid deltamethrin. The aim of the present study was to analyse the genetic basis of deltamethrin resistance in L. salmonis. Deltamethrin median effective concentrations (EC50) were 0.28 μg L-1 in the drug susceptible L. salmonis strain IoA-00 and 40.1 μg L-1 in the pyrethroid resist

SUBMITTER: Carmona-Antonanzas G 

PROVIDER: S-EPMC5507548 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature