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Skeletal polymorphism and genetic drift in a Delhi frog, Rana cyanophlictis*†

Published online by Cambridge University Press:  14 April 2009

Manjit Singh Grewal  and
Sanjoy Dasgupta
Manjit Singh Grewal
Affiliation:
Department of Anatomy, Unit-I, All-India Institute of Medical Sciences, New Delhi
Sanjoy Dasgupta
Affiliation:
Department of Anatomy, Unit-I, All-India Institute of Medical Sciences, New Delhi
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Nineteen axial skeletal variants are described in the frog Rana cyanophlictis, collected from five isolated populations of Delhi. Four of these populations came from large perennial ponds and one, a transitory population, was entrapped from a temporary rain pool. The populations were found to diverge significantly from each other in the incidence of these skeletal variants. We have attributed this divergence to genetic drift, but the effects of unknown selective forces cannot be ruled out.

Information

Type
Research Article
Information
Genetics Research , Volume 9 , Issue 3 , June 1967 , pp. 299 - 307
Copyright
Copyright © Cambridge University Press 1967

References

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