Sequence variation in four mitochondrial genes of the salmon louse Lepeophtheirus salmonis

Overview
TitleSequence variation in four mitochondrial genes of the salmon louse Lepeophtheirus salmonis
AuthorsTjensvoll K, Glover KA, Nylund A
TypeComparative Study
Media TitleDiseases of aquatic organisms
Volume68
Issue3
Year2006
Page(s)251-9
CitationTjensvoll K, Glover KA, Nylund A. Sequence variation in four mitochondrial genes of the salmon louse Lepeophtheirus salmonis. Diseases of aquatic organisms. 2006 Mar 2; 68(3):251-9.

Abstract

A total of 210 Lepeophtheirus salmonis collected from 7 locations (Scotland, Russia, Canada, Japan and 3 locations in Norway), were screened for sequence variation in 4 mitochondrial genes; ATPase subunit 6 (A6), Cytochrome b oxidase subunit I (COI), Cytochrome b (Cyt b) and 16S rRNA. A high level of intraspecific variation was observed within all genes. The majority of polymorphisms were present in single individuals only, which resulted in a high number of private haplotypes within each gene. Little evidence of genetic differentiation was observed among the 3 Norwegian locations or between L. salmonis samples from Norway, Scotland and Russia. Pairwise FST values indicated that a weak degree of sub-division between L. salmonis sampled in Canada and the Northeast Atlantic might, however, exist. All samples collected in the Atlantic were highly different from the Japanese sample. It is suggested that the lack of genetic differentiation among lice samples from the North Atlantic is a result of extensive gene flow mediated by passive transport of L. salmonis larvae, and the migratory pattern of its salmonid hosts.

Author Details
Additional information about authors:
Details
1Kjersti Tjensvoll
2Kevin A Glover
3Are Nylund
Properties
Additional details for this publication include:
Property NameValue
Publication ModelPrint
ISSN0177-5103
pISSN0177-5103
Publication Date2006 Mar 2
Journal AbbreviationDis. Aquat. Org.
LanguageEnglish
Language Abbreng
Publication TypeComparative Study
Journal CountryGermany
Publication TypeJournal Article
Publication TypeResearch Support, Non-U.S. Gov't
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PMID: PMID:16610591