Abstract
Isozymes have been used since the 1960's to identify species and cultivars in many different genera in the plant and animal kingdom. Each species has a unique banding pattern for its various isozymes with the number of detectable isozymes dependent on factors such as the number of genes coding for the enzyme, the number of alleles of each gene, the quarternary structure of the enzyme and the possible formation of intergenic enzymes. Alstroemeria is an important cut flower currently ranked 4th in production in the U.S. The cultivars that are available to the growers have largely been developed in England and the Netherlands. The origin of these cultivars has not been well documented. As a consequence, cultivar development in the U.S. cannot easily resynthesize new cultivars from the original parents used in Europe. We are currently using isozymes to characterize some of the species which are thought to have been the progenitors of the commercial hybrids. These isozyme systems are then used to screen available hybrids for determination of the parental origin of the hybrids. This information could be used to narrow the choice of parents to be used in a breeding program for the development of the U.S. hybrids.
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