SEX-BIASED GENETIC STRUCTURE IN THE VECTOR OF LYME DISEASE, IXODES RICINUS

We analyzed 725 Ixodes ricinus ticks (the principal vector of Lyme disease in Europe) collected in Switzerland in 1995 and 1996 (three and eight samples, respectively) and in Tunisia in 1996 (one sample) with five microsatellite markers. We found highly significant genetic differentiation between Sw...

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Veröffentlicht in:Evolution 2002-09, Vol.56 (9), p.1802-1807
Hauptverfasser: de Meeûs, Thierry, Béati, Lorenza, Delaye, Christelle, Aeschlimann, André, Renaud, François
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container_end_page 1807
container_issue 9
container_start_page 1802
container_title Evolution
container_volume 56
creator de Meeûs, Thierry
Béati, Lorenza
Delaye, Christelle
Aeschlimann, André
Renaud, François
description We analyzed 725 Ixodes ricinus ticks (the principal vector of Lyme disease in Europe) collected in Switzerland in 1995 and 1996 (three and eight samples, respectively) and in Tunisia in 1996 (one sample) with five microsatellite markers. We found highly significant genetic differentiation between Swiss and Tunisian samples but detected almost no differentiation within Switzerland, even between those samples separated by the Alps. Interestingly, we found that I. ricinus females were more genetically related to one another than were males at a local scale, which would indicate a higher dispersal rate of immature males. Possible explanations for these findings in terms of sex-specific association of ticks with certain hosts (e.g., birds) and their epidemiological consequences are discussed.
doi_str_mv 10.1554/0014-3820(2002)056[1802:SBGSIT]2.0.CO;2
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source MEDLINE; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; BioOne Complete; Jstor Complete Legacy; Oxford University Press Journals All Titles (1996-Current)
subjects Alleles
Animals
Arachnid Vectors - microbiology
Borrelia burgdorferi Group - isolation & purification
Disease
Evolution
Evolutionary genetics
Female
Genetic loci
Genetic variation
Genetics
Heterozygotes
Ixodes - genetics
Ixodes - microbiology
Ixodes ricinus
Lyme disease
Lyme Disease - epidemiology
Lyme Disease - prevention & control
Lyme Disease - transmission
Male
Medical genetics
Microsatellites
Pathogens
Polymorphism, Genetic
population genetics
REGULAR ARTICLES
Sex Factors
sex-biased dispersal
Sexes
Switzerland - epidemiology
Ticks
title SEX-BIASED GENETIC STRUCTURE IN THE VECTOR OF LYME DISEASE, IXODES RICINUS
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