Sugary Endosperm is Modulated by Starch Branching Enzyme IIa in Rice (Oryza sativa L.).

ABSTRACT:

Background

Starch biosynthesis is one of the most important pathways that determine both grain quality and yield in rice (Oryza sativa L.). Sugary endosperm, sugary-1 (sug-1), is a mutant trait for starch biosynthesis. Rice plants carrying sug-1 produce grains that accumulate water-soluble carbohydrates instead of starch, even after maturity. Although this trait enhances the diversity of grain quality, sugary endosperm rice has hardly been commercialized due to the severely wrinkled grains and subsequent problems in milling. This study was conducted to identify the genes responsible for the sug-h phenotype through a map-based cloning technology.

Results

We induced a mild sugary mutant, sugary-h (sug-h) through the chemical mutagenesis on the Korean japonica cultivar Hwacheon

SUBMITTER: Lee Y 

PROVIDER: S-EPMC5519516 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature