Journal article

Genetic variation within the ticks Ixodes holocyclus and Ixodes cornuatus from South-eastern Australia

J Jackson, NB Chilton, I Beveridge, M Morris, RH Andrews

INTERNATIONAL JOURNAL FOR PARASITOLOGY | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2000

Abstract

Ticks from mainland Australia (Victoria, New South Wales and Queensland) and Tasmania, identified morphologically as either Ixodes holocyclus or Ixodes cornuatus, were compared genetically using 24 enzyme loci. The results showed that ticks from three localities in Victoria were genetically similar to I. cornuatus in Tasmania, but both groups had fixed genetic differences at >45% of loci compared with other ticks on the mainland. In addition, there were fixed genetic differences at 0-60% of loci among I. holocyclus from different localities on the mainland. Ixodes holocyclus samples could be divided into four distinct clusters (with fixed genetic differences >15%), three of which were repres..

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University of Melbourne Researchers