Gene Details:

• Gene ID: Zm00001eb392880
• Gene Symbol: ZmSUS1
• Gene Name: sucrose synthase1
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• Overexpression of the ZmSUS1 gene alters the content and composition of endosperm starch in maize.
• ZmSUS1 increases the amylose content of maize by regulating the expression of Shrunken2 (Sh2) and Brittle2 (Bt2) which encode the size subunits of endosperm ADP-glucose pyrophosphorylase, and Granule bound starchsynthase1 (GBSS1) and Starch synthase1 (SS1).
• These results indicated that overexpression of ZmSUS1 can significantly improve the traits of maize seeds and obtain new lines with high amylose content. It was also found that the overexpression of ZmSUS1 may increase the amylose content by altering the expression of endosperm ADP-glucose pyrophosphorylase (AGPase) subunits Shrunken2 (Sh2) and Brittle2 (Bt2).
• The ectopic expression of ZmSUS1 also affected the expression of Granule bound starch synthase1 (GBSS1) and Starch synthase1 (SS1) which encode starch synthase. This study proved the important role of ZmSUS1 in maize starch synthesis and provided a new technology strategy for improving maize starch content and yield.

Function-related keywords:

• starch ,  yield ,  endosperm ,  amylose-content ,  pyrophosphorylase

Literature:

• Overexpression of the ZmSUS1 gene alters the content and composition of endosperm starch in maize (Zea mays L.).   DOI:  10.1007/s00425-023-04133-z ;  PMID:  37052727

Related News:

Gene Resources:

• NCBI ID: LOC542247
• UniProt accessions: P49036

Orthologs:

Sequences:

Source: Genetic information comes from the article