Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 257

Just as a single gene may have multiple alleles that produce different forms of one enzyme, there can be more than one gene for the same enzyme. The same enzymes produced by different genes are called isozymes. Isozymes are common in plants. For example, the enzyme phosphoglucomutase in Helianthus debilis is controlled by two nuclear genes and two chloroplast genes. Isozymes and allozymes were the first molecular markers developed for use in plant and animal genetic research.