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Enzyme polymorphism in Schistosoma mattheei from cattle in the Eastern Transvaal Lowveld

Published online by Cambridge University Press:  05 June 2009

F. J. Kruger
F. J. Kruger
Affiliation:
Research Institute for Diseases in a Tropical Environment of the South African Medical Research Council, P.O. Box 634, Nelspruit 1200, Republic of South Africa
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Abstract

Enzyme electrophoresis was conducted on 10 Schistosoma mattheei adult worm samples, comprising 270 individuals, collected from cattle in the Eastern Transvaal Lowveld. Glucose-6-phosphate dehydrogenase (G6PDH) was studied in all the samples and phosphoglucomutase (PGM) and malate dehydrogenase (MDH) in five populations each. Only one population was polymorphic for G6PDH. In this population, in addition to the allele found in all the other samples, a second allele occurred with a similar Rf value to S. haematobium. The two alleles were in Hardy-Weinberg equilibrium. MDH-1 exhibited two alleles. However, these alleles were not in equilibrium. In certain populations, heterozygotes occurred together with homozygotes of one of the alleles only. PGM was monomorphic in all the populations studied.

Keywords

Schistosoma mattheeiSchistosoma haematobiumcattleenzyme electrophoresis
Type
Research Article
Information
Journal of Helminthology , Volume 63 , Issue 3 , September 1989 , pp. 191 - 196
Copyright
Copyright © Cambridge University Press 1989

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