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Skeletal polymorphism and genetic drift in a Delhi frog, Rana cyanophlictis – a follow-up study

Published online by Cambridge University Press:  14 April 2009

Manjit Singh Grewal
Affiliation:
Department of Anatomy, All-India Institute of Medical Sciences, New Delhi 110016

Summary

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Four isolated populations of the skipper frog, Rana cyanophlictis were first studied in 1965 and then again in 1975. The genetical changes were measured by the incidence of 19 non-metrical skeletal variants. It was found that these populations have changed very little in 10 years, although the inter-population diversity, as judged by the estimates of divergence, is less now than previously. This could be due to the similar environmental conditions prevailing in Delhi and its neighbourhood from where these frog populations were collected.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1978

References

REFERENCES

Berry, R. J. (1969). History in the evolution of Apodemus sylvaticus (Mammalia) at one edge of its range. Journal of Zoology 159, 311328.Google Scholar
Grewal, M. S. (1962). The rate of genetic divergence of sublines in the C57BL strain of mice. Genetical Research 3, 226237.Google Scholar
Grewal, M. S. & Dasgupta, S. (1967). Skeletal polymorphism and genetic drift in a Delhi frog, Rana cyanophlictis. Genetical Research 9, 299307.Google Scholar
Sjøvold, T. (1973). The occurrence of minor non-metrical variants in the skeleton and their quantitative treatment for population comparisons. Homo 24, 204233.Google Scholar
Smith, C. A. B. (1977). A note on genetic distance. Annals of Human Genetics 40, 463479.Google Scholar