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A Comparison Between Quantitative and Biochemical Variation in the Wild Barley Hordeum murinum
Barbara E. Giles
Vol. 38, No. 1 (Jan., 1984), pp. 34-41
Published by: Society for the Study of Evolution
Stable URL: http://www.jstor.org/stable/2408544
Page Count: 8
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An electrophoretic survey of 58 populations of Hordeum murinum, an inbreeding barley from Britain, Europe, and the Mediterranean region was carried out using seven enzyme and protein systems. The results indicated that little genetic differentiation in enzyme characters had occurred between populations and that most populations tended to be monomorphic. In contrast, an analysis of the quantitative variation in several morphological characters among populations and among families of a single population revealed significant levels of variation both within and between populations for most characters. This contrast suggests that caution needs to be exercised when general or organismic pictures of evolution are constructed from a limited number of characters.
Evolution © 1984 Society for the Study of Evolution