Spatiotemporal regulation of anther's tapetum degeneration paved the way for a reversible male sterility system in cotton.

ABSTRACT: Male sterility is an important agronomical trait in self-pollinating plants for producing cost-effective F1 hybrids to harness the heterosis. Still, large-scale development and maintenance of male sterile lines and restoring fertility in F1 hybrids pose significant challenges in plant hybrid breeding. Cotton is a self-pollinating crop and exhibits strong hybrid vigor. However, there are currently few breeding methods to achieve cost-effective production of F1 hybrid cotton. Here, we utilized novel functions of the Arabidopsis autophagy-related BECLIN1/ATG6 and a mutant of E3 ubiquitin ligase COP1 (COP1^L105A) genes in developing rescuable male sterility in cotton. We have generated multiple male-sterile (MS) and restorer (RS) cotton lines expressing BECLIN1 and COP1^L105A

SUBMITTER: Verma RK 

PROVIDER: S-EPMC11772332 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature