Alternative Splicing of TaGS3 Differentially Regulates Grain Weight and Size in Bread Wheat.

ABSTRACT: The heterotrimeric G-protein mediates growth and development by perceiving and transmitting signals in multiple organisms. Alternative splicing (AS), a vital process for regulating gene expression at the post-transcriptional level, plays a significant role in plant adaptation and evolution. Here, we identified five splicing variants of G_γ subunit gene TaGS3 (TaGS3.1 to TaGS3.5), which showed expression divergence during wheat polyploidization, and differential function in grain weight and size determination. TaGS3.1 overexpression significantly reduced grain weight by 5.89% and grain length by 5.04%, while TaGS3.2-3.4 overexpression did not significantly alter grain size compared to wild type. Overexpressing TaGS3.5 significantly

SUBMITTER: Ren X 

PROVIDER: S-EPMC8584009 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature