SUMMARY
A total of 694 plants of Trifolium repens were collected in 17 samples to investigate the effect of altitude on the frequency of cyanogenic plants; the area chosen for this purpose was North Wales, with altitudes ranging from 100 to 1600 feet. A significant decrease in frequency of AcLi plants was observed, lower values obtained in high altitudes; the calculated regression coefficient was −0·01938 (in angular measure), with P<0·001.
Article PDF
References
Angseesing, J P A. 1974. Selective eating of the acyanogenic form of Trifolium repens. Heredity, 32, 73–83.
Bishop, J A, and Korn, M E. 1969. Natural selection and cyanogenesis in white clover, Trifolium repens. Heredity, 24, 423–430.
Crawford-Sidebotham, T J. 1972. The role of slugs and snails in the maintenance of the cyanogenesis polymorphisms of Lotus corniculatus and Trifolium repens. Heredity, 28, 405–411.
Daday, H. 1954. Gene frequencies in wild populations of Trifolium repens. I. Distribution by latitude. Heredity, 8, 61–78.
Daday, H. 1954. Gene frequencies in wild populations of Trifolium repens. II. Distribution by altitude. Heredity, 8, 377–384.
Foulds, W, and Grime, J P. 1972. The response of cyanogenic and acyanogenic phenotypes of Trifolium repens to soil moisture supply. Heredity, 28, 181–187.
Jones, D A. 1966. On the polymorphism of cyanogenesis in Lotus corniculatus L. I. Selection by animals. Can J Genet Cytol, 8, 556–567.
Jones, D A. 1970. On the polymorphism of cyanogenesis in Lotus corniculatus L. III. Some aspects of selection. Heredity, 25, 633–641.
Jones, S A. 1973. Co-evolution and cyanogenesis. In Taxonomy and Ecology, Ed. V. H. Heywood, 213–242. Academic Press.
Pusey, J G. 1963. Cyanogenesis in Trifolium repens. In Teaching Genetics in School and University, Eds. C. D. Darlington and A. D. Bradshaw, 99–104. Oliver and Boyd.
Whitman, R J. 1973. Herbivore feeding and cyanogenesis in Trifolium repens L. Heredity, 30, 241–244 .
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
de Araújo, A. The relationship between altitude and cyanogenesis in white clover (Trifolium repens, L.). Heredity 37, 291–293 (1976). https://doi.org/10.1038/hdy.1976.89
Received:
Issue Date:
DOI: https://doi.org/10.1038/hdy.1976.89
This article is cited by
-
Searching for the bull’s eye: agents and targets of selection vary among geographically disparate cyanogenesis clines in white clover (Trifolium repens L.)
Heredity (2013)
-
The effects of altitude, aspect, grazing and time on the proportion of cyanogenics in neighbouring populations of Trifolium repens L. (white clover)
Heredity (2002)
-
Characterisation of white clover populations collected from the Caucasus and high altitude regions of eastern Turkey
Genetic Resources and Crop Evolution (1996)
-
The cyanogenic polymorphism in Trifolium repens L. (white clover)
Heredity (1991)
-
Altitudinal clines for cyanogenesis in introduced populations of white clover near Vancouver, Canada
Heredity (1990)