Gene Details:

• Gene ID: TraesCS2A02G310300
• Gene Symbol: TaSBEIIb
• Gene Name: 1,4-alpha-glucan-branching enzyme 2
• Genome: Chinese_Spring1.0
• Species: Triticum aestivum

Functional Descriptions:

• The role of TaSBEIIb in determining starch composition, structure, properties and end-use quality in different genetic backgrounds and improving RS content with multiple breeding and end-use applications in cereal crop species through genome editing for health benefits.
• Studies over past decades have established that down-regulation of the two different isoforms of starch-branching enzyme (SBE) II (TaSBEIIa and TaSBEIIb) through plant-mediated RNA interference (RNAi) increased wheat amylose content.
• Suppression of TaSBEIIb expression alone had no effect on amylose content; however, suppression of both TaSBEIIa and TaSBEIIb expression resulted in starch containing >70% amylose , implying TaSBEIIa plays a more profound role in determining the starch property of wheat.
• We postulated that this was probably due to the high similarity of TaSBEIIa and TaSBEIIb, RNAi construct could suppress both SBEIIa and SBEIIb activity simultaneously.

Function-related keywords:

• starch ,  quality ,  breeding ,  branching ,  amylose-content

Literature:

• Modification of starch composition, structure and properties through editing of TaSBEIIa in both winter and spring wheat varieties by CRISPR/Cas9.   DOI:  10.1111/pbi.13519 ;  PMID:  33236499

Related News:

Gene Resources:

• NCBI ID: XP_044457624
• UniProt accessions: A0A3B6B044

Sequences: