Characterization of the overexpressions effect of SAMBA gene in Micro-Tom

• Grant number: 23/13107-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): October 01, 2023
• Effective date (End): January 31, 2025
• Field of knowledge: Biological Sciences - Biochemistry - Molecular Biology
• Acordo de Cooperação: Max Planck Society for the Advancement of Science
• Principal Investigator: Nubia Barbosa Eloy
• Grantee: Ana Isabela Chang
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated research grant: 17/10333-8 - APC as an entry point to study small molecule regulation of the cell cycle, AP.JP

Abstract

The Anaphase Promoting Complex/Cyclosome (APC/C) is an E3 ubiquitin ligase involved in the ubiquitin-dependent proteolysis of key cell cycle proteins. The spatiotemporal degradation of mitotic cyclins and securins ensures the transition from G2/M phase, and exit from the cell division program, respectively. The identification of the genes that encode the APC/C subunits in Arabidopsis thaliana suggests that the complex has other functions, in addition to controlling cell division program during plant development, such as: embryogenesis, gametogenesis, growth regulation, hormonal signaling and symbiotic interactions. Although research on APC/C has advanced in recent years, very little is known about the specific function of each component during plant development. One of these members, SAMBA gene, proved to be a highly promising candidate in Arabidopsis related to increased yield, through the production of larger leaves, roots and seeds. In this project we intend to characterize tomato plants cv. Micro-Tom stably overexpressing the SAMBA gene and characterize its effect during plant development. (AU)