Genetical Studies on the Mode of Inheritance and Localization of theamo1(High Amylose) Gene in Barley

摘要

AbstractIn the high amylose starch mutant ‘Glacier AC38’, a single recessive gene designatedamo1is responsible for an amylose content of up to 45. A rapid technique was established in order to evaluate the amylose/amylopectin ratio in half kernels. To localize this gene, crosses with multiple marker lines and trisormes were conducted. In addition, RFLP markers were used to determine their mapping distance toamo1. Two markers are located 2 cM and 7 cM, respectively, fromamo1on chromosome 5S (1HS). The relationship between thewxandamo1genes was also examined and the role of theamo1gene in starch synthesis is discus