Abstract
THE extent of polymorphism in genetically determined isozyme variants (allozyme variation) in natural populations raises the issue of its adaptive significance. It was originally thought that this variation is neutral with respect to fitness1, but recent evidence supports the assertion that its maintenance involves a selective component2. If an allelic substitution yields an enzyme with altered properties3, maintenance by selection in natural populations may result in a distinct geographic distribution of allele frequencies. Such a pattern has been described4 in the case of a serum esterase polymorphism in the freshwater fish Catostomus clarkii.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Shaw, C. R., Science, 149, 936 (1965).
Richmond, R. C., Nature, 225, 1025 (1970).
Gibson, J., Nature, 227, 959 (1970).
Koehn, R. K., Science, 163, 943 (1969).
Leng, E. R., Z. Pflanzenzucht, 47, 67 (1962).
Stebbins, Processes of Organic Evolution (Prentice Hall, New Jersey, 1966).
Allard, R. W., Principles of Plant Breeding (Wiley, New York, 1963).
Dudley, J. W., and Lambert, R. J., Crop. Sci., 9, 179 (1969).
Brown, A. H. D., and Allard, R. W., Crop. Sci., 9, 72, 634 (1969).
Brown, A. H. D., Genetica, 41, 399 (1970).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
BROWN, A. Isozyme Variation under Selection in Zea mays. Nature 232, 570–571 (1971). https://doi.org/10.1038/232570a0
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1038/232570a0
This article is cited by
-
Restriction fragment length polymorphism differences among Illinois long-term selection oil strains
Theoretical and Applied Genetics (1994)
-
Associations between quantitative traits and enzyme loci in the F2 population of a maize hybrid
Theoretical and Applied Genetics (1986)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
