Barley plant having increased amylose content

EP4770426A1Pending Publication Date: 2026-07-08

Patent Information

Authority / Receiving Office: EP · EP
Patent Type: Applications
Filing Date: 2024-05-30
Publication Date: 2026-07-08

AI Technical Summary

Technical Problem

Current barley plants do not naturally produce starch with high amylose content, which is desirable for industrial applications and nutritional benefits, and existing methods to increase amylose levels are either ineffective or involve genetic modifications regulated as GMOs.

Method used

A barley plant with a mutated SBEIIa gene, specifically a G to A mutation at position 4201, is developed using chemical mutagenesis, resulting in increased amylose content without affecting grain yield or starch granule morphology, thus exempting it from certain regulatory classifications.

Benefits of technology

The mutated barley plant achieves an amylose content above 40% and maintains normal starch granule morphology, providing a high amylose-to-amylopectin ratio suitable for industrial uses and nutritional benefits while avoiding GMO regulations.

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Abstract

The present invention relates to a barley plant, or part thereof, carrying a mutated SBEIIa gene, wherein said mutation is at position 4201 in the SBEIIa gene sequence and being a G to A mutation, a G to T mutation or a G to C mutation, preferably a G to A mutation. The invention further relates to methods 5 for selecting plants having a high amylose content, progeny of such barley plants and flour, starch, seeds and kernels produced from such barley plants.

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