Genetical studies on the mode of inheritance and localization of the amo1 (high amylose) gene in barley
1992
Schondelmaier, J. (Technische Univ. Muenchen, Freising (Germany). Lehrstuhl fuer Pflanzenbau und Pflanzenzuechtung) | Jacobi, A. | Fischbeck, G. | Jahoor, A.
In the high amylose starch mutant 'Glacier AC38', a single recessive gene designated amo1 is 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 trisomics were conducted. In addition, RFLP markers were used to determine their mapping distance to amo1. Two markers are located 2 cM and 7 cM, respectively, from amo1 on chromosome 5S (1HS). The relationship between the wx and amo1 genes was also examined and the role of the amo1 gene in starch synthesis is discussed.
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