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Scanning electron microscope studies of miracidia suggest introgressive hybridization between Schistosoma haematobium and S. haematobium x S. mattheei in the Eastern Transvaal

Published online by Cambridge University Press:  05 June 2009

F. J. Kruger  and
V. L. Hamilton-Attwell
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
V. L. Hamilton-Attwell
Affiliation:
Department of Zoology, Potchefstroom University for Christian Higher Education, Potchefstroom 2520, Republic of South Africa
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Abstract

Schistosoma haematobium miracidia were collected from a locality with a high prevalence of human infection with the animal parasite, S. mattheei, which hybridizes with S. haematobium, and from 2 localities with negligible infection rates. The terebratoria of the miracidia from these localities were compared with each other, with laboratory maintained S. haematobium and with four populations of S. mattheei by means of scanning electron microscopy. It was found that the terebratorial membrane of certain of the S. haematobium miracidia from the locality with a high S. mattheei prevalence in humans, resembled the more intricate membrane of S. mattheei. This suggests introgressive hybridization between S. haematobium and S. haematobium x S. mattheei.

Keywords

Schistosoma haematobiumSchistosoma mattheeimiracidiaterebratoriaintrogressive hybridization
Type
Research Papers
Information
Journal of Helminthology , Volume 62 , Issue 2 , June 1988 , pp. 141 - 147
Copyright
Copyright © Cambridge University Press 1988

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