GF14f gene is negatively associated with yield and grain chalkiness under rice ratooning.

ABSTRACT:

Background

Ratoon rice cropping has been shown to provide new insights into overcoming the current challenges of rice production in southern China. However, the potential mechanisms impacting yield and grain quality under rice ratooning remain unclear.

Methods

In this study, changes in yield performance and distinct improvements in grain chalkiness in ratoon rice were thoroughly investigated, using physiological, molecular and transcriptomic analysis.

Results

Rice ratooning induced an extensive carbon reserve remobilization in combination with an impact on grain filling, starch biosynthesis, and ultimately, an optimization in starch composition and structure in the endosperm. Furthermore, these variations were shown to be associated with a protein-coding gene: GF14f (

SUBMITTER: Lin F 

PROVIDER: S-EPMC9976807 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature