Evidence for triplicate genes for alcohol dehydrogenase in hexaploid wheat.
The alcohol dehydrogenase zymogram phenotypes of 40 wheat strains, each possessing a distinctive chromosomal constitution, were determined. Genes involved in the production of alcohol dehydrogenase were located on the beta arm of chromosome 4A and on chromosomes 4B and 4D. The results support the hypothesis that the active alcohol dehydrogenase isozymes are dimers composed of the six possible combinations of subunits coded by triplicate structural genes.
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GENETICS SECTION, DEPARTMENT OF PLANT SCIENCES, TEXAS A&M UNIVERSITY, COLLEGE STATION, TEXAS.