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Genetic diversity in the yeast species Malassezia pachydermatis analysed by multilocus enzyme electrophoresis

¹ Laboratoire d'Immunologie et de Parasitologie, UFR des Sciences Pharmaceutiques, 34060 Montpellier Cedex 2, France
² Unité de Parasitologie-Mycologie, URA-INRA Immunopathologie Cellulaire et Moleéculaire, Ecole Nationale Vétérinaire d'Alfort, 7 Avenue du Général de Gaulle, 94704 Maisons-Alfort Cedex, France
³ Unité de Mycologie, Institut Pasteur, 25 rue du Dr Roux, 75724 Paris Cedex 15, France
⁴ Laboratoire de Parasitologie Comparée (UMR 5555, CNRS), Université Montpellier II, CC 105 PI. E. Bataillon, 34095 Montpellier Cedex 05, France

Author for correspondence: Michéle Mallié. Tel: +33 4 67 63 52 02. Fax: +33 4 67 41 16 17

ABSTRACT

Fifty-two strains of the yeast species Malassezia pachydermatis were analysed by multilocus enzyme electrophoresis. M. pachydermatis appeared to be genetically heterogeneous. A total of 27 electrophoretic types were identified that could be divided into five distinct groups with different host specificities. The diversity revealed by this electrophoretic method matched remarkably well the reported genetic variability obtained by comparing large subunit rRNA sequences. This study also suggests that genetic exchanges can occur in the anamorphic species M. pachydermatis.

Key Words: yeast • multilocus enzyme electrophoresis • rDNA sequence analysis • genetic diversity • host

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