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Identification of life cycle stages of the nematode Echinocephalus overstreeti by allozyme electrophoresis

Published online by Cambridge University Press:  05 June 2009

R. H. Andrews ,
I. Beveridge ,
M. Adams  and
P. R. Baverstock
R. H. Andrews
Affiliation:
The Evolutionary Biology Unit, South Australian Museum, Adelaide, South Australia, Australia 5000
I. Beveridge
Affiliation:
Institute of Medical and Veterinary Science, South Australian Department of Agriculture, Frome Road, Adelaide, South Australia, Australia 5000
M. Adams
Affiliation:
The Evolutionary Biology Unit, South Australian Museum, Adelaide, South Australia, Australia 5000
P. R. Baverstock
Affiliation:
The Evolutionary Biology Unit, South Australian Museum, Adelaide, South Australia, Australia 5000
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Abstract

Data presented in this study highlight the potential of allozyme electrophoresis in providing unequivocal genetic evidence for the identification of life cycle stages, particularly where species have complex life cycles. Adults of the nematode Echinocephalus overstreeti parasitize the elasmobranch Heterodontus portusjacksoni. The putative larval form which is morphologically dissimilar is found in two species of marine molluscs, Chlamys bifrons and Pecten albus. Electrophoretic analysis indicated that the adult and larval forms shared alleles at all of the 34 enzyme loci established. Furthermore, there were no fixed allelic differences between larval forms from different mollusc species.

Keywords

Echinocephalus overstreetilife cycleidentificationallozyme electrophoresis
Type
Research Papers
Information
Journal of Helminthology , Volume 62 , Issue 2 , June 1988 , pp. 153 - 157
Copyright
Copyright © Cambridge University Press 1988

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References

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