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Mother-offspring data in a study of the mating system in a natural population of Bulinus globosus (Gastropoda: Planorbidae) in Zimbabwe

Published online by Cambridge University Press:  14 April 2009

S. Mukaratirwa ,
S. K. Chandiwana ,
H. R. Siegismund  and
T. K. Kristensen
S. Mukaratirwa*
Affiliation:
Blair Research Laboratory, Box 573 CY, Harare, Zimbabwe
S. K. Chandiwana
Affiliation:
Blair Research Laboratory, Box 573 CY, Harare, Zimbabwe
H. R. Siegismund
Affiliation:
Royal Veterinary and Agricultural University, Department of Botany, Dendrology and Forest Genetics, Arboretum, Kirkegårdsvej 3A, DK-2970 Horsholm, Denmark
T. K. Kristensen
Affiliation:
Danish Bilharziasis Laboratory, Jaegersborg, Alle 1 D DK-2920 Charlottenlund, Denmark
*
* Corresponding author.
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Summary

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The mating system of a natural population of Bulinus globosus from the Chiweshe area, Zimbabwe, was studied with mother—offspring data using isozyme genetic markers. The study was done in response to work on the genetic structure of this population which suggested a limited extent of cross-fertilization. Of the 24 adults whose progenies were analysed, at least 15 showed evidence of outcrossing and 9 had results consistent with selfing. These results show that the two modes of reproduction are important under natural conditions and the mating system of this population is considered to be ‘partially-selfing’.

Type
Research Article
Information
Genetics Research , Volume 68 , Issue 2 , October 1996 , pp. 95 - 100
Copyright
Copyright © Cambridge University Press 1996

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