The B-Type Cyclin CYCB1-1 Regulates Embryonic Development and Seed Size in Maize.

ABSTRACT: Progress through the cell cycle is a critical process during plant embryo and seed development and its progression is regulated by cyclins. Despite extensive study of cyclins in other systems, their role in embryo and seed development of maize is unclear. In this study, we demonstrate that ZmCYCB1-1 overexpression significantly accelerated embryo growth and increased seed size. In situ hybridization and toluidine blue staining indicated that ZmCYCB1-1 was highly expressed in the plumule of embryos, and the cells of the plumule were smaller, denser, and more regularly arranged in ZmCYCB1-1 overexpression plants. Overexpression of ZmCYCB1-1 in maize also resulted in an increased ear length and enhanced kernel weight by increasing kernel width. Transcriptome analys

SUBMITTER: Zhao B 

PROVIDER: S-EPMC9180882 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature