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Science 23 April 1982:
Vol. 216. no. 4544, pp. 373 - 380
DOI: 10.1126/science.216.4544.373
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Articles

Conservation and Duplication of Isozymes in Plants

L. D. Gottlieb 1

1 Professor in the Department of Genetics, University of California, Davis 95616

Many enzymes in plants have isozymes because the same catalytic reaction is often present in several subcellular compartments, most frequently the plastids and the cytosol. The number and subcellular locations of the isozymes appear to be highly conserved in plant evolution. However, gene duplication in diploid species and the addition of genomes in polyploid species have increased the number of isozymes.


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