Exploring the mechanism of seed shattering in Psathyrostachys juncea through histological analysis and comparative transcriptomics.

ABSTRACT:

Background

Seed shattering (SS) negatively impacts seed yield in Psathyrostachys juncea. Understanding and improving the SS trait requires elucidating the regulatory mechanisms of SS and identifying the key genes involved.

Results

This study presents a comprehensive analysis of the abscission zone (AZ) structures at four developmental stages in two P. juncea genotypes. High-SS P. juncea (H) exhibited a significantly higher SS rate than low-SS P. juncea (L) at all four developmental stages. Anatomical analysis revealed that the degree of lignification in the AZ cell walls is related to the integrity of the abscission structure. The degradation of the AZ in H occurred earlier and was more severe compared to L. At different developmental stages of the AZ, H exhibited higher cel

SUBMITTER: Lv Y 

PROVIDER: S-EPMC11654153 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature