Enzyme Differences between Adjacent Hybrid and Parent Populations of Typha

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Enzyme variation among three adjacent Typha populations was analyzed by means of disc electrophoresis, isoelectric focusing, and enzyme assays. Esterase isozyme analysis of seedlings of Typha latifolia L.,T . x glauca Godr., and T. angustifolia L. indicated that there was little or no variation within each population. Additional analyses of esterase, malate dehydrogenase, glutamate dehydrogenase, and alcohol dehydrogenase of pooled samples of pollen and seedlings indicated that the Typha x glauca population was the product of hybridization between the adjacent parent populations. The hybrid population had more isozymes, but lower specific activities, than the parents.

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