The barley amo1 locus is tightly linked to the starch synthase IIIa gene and negatively regulates expression of granule-bound starch synthetic genes

• Published in: Journal of experimental botany Vol. 62; no. 14; pp. 5217 - 5231
• Main Authors: Li, Zhongyi, Li, Dehong, Du, Xihua, Wang, Hong, Larroque, Oscar, Jenkins, Colin L. D., Jobling, Stephen A., Morell, Matthew K.
• Format: Journal Article
• Language: English
• Published: England Oxford University Press 01.10.2011
• Subjects: Amylose - biosynthesis; Barley; DNA; Down-Regulation; Endosperm; Gene Expression Regulation, Plant; Genetic loci; Genetic mutation; Genomics; Genotypes; Glaciers; Grains; Hordeum - enzymology; Hordeum - genetics; Hordeum vulgare; Mutation; Phenotype; Plant Proteins - genetics; Plant Proteins - metabolism; RESEARCH PAPER; Research Papers; Starch - biosynthesis; Starch Synthase - genetics; Starch Synthase - metabolism; Starches; 1; 6; GBSSI; SSIIa; barley; starch; mutant; SSIIIa

In this study of barley starch synthesis, the interaction between mutations at the sex6 locus and the amo1 locus has been characterized. Four barley genotypes, the wild type, sex6, amo1, and the amo1sex6 double mutant, were generated by backcrossing the sex6 mutation present in Himalaya292 into the...