Characterization of genetic variation in tomato affecting the competence to assume different developmental fates

• Grant number: 12/24714-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: May 01, 2013
• End date: May 31, 2016
• Field of knowledge: Biological Sciences - Physiology
• Principal Investigator: Lázaro Eustaquio Pereira Peres
• Grantee: Maísa de Siqueira Pinto
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated scholarship(s): 14/17553-5 - Analysis of goblet and LeGAI spatial-temporal expression in tomato introgression lines with high regeneration capacity, BE.EP.DR

Abstract

The ability of certain plant tissues to regenerate new organs for a long time and has been used primarily in the domestication of plants propagated vegetatively. Later on, efforts to extend this regenerative capacity to in vitro culture enabled a better understanding of the mechanisms controlling plant regeneration. Recent studies on the cell signaling that initiates the regeneration process have allowed the detection of some genes and signaling molecules related mainly to the induction phase of new organs. However, the molecular mechanisms involved in the acquisition of competence for regeneration are still poorly understood. New results have reinforced the idea that the process of competence acquisition follows the same pattern for both shoot and root formation in vitro. Root pericycle cells and their equivalents in aerial organs are believed to be involved in the regeneration process. These cell types retain some meristematic features that allow regeneration of new organs without previous cellular dedifferentiation. The study of regeneration capacity and the characterization of genes and signaling pathways involved in the initial acquisition of competence is thus very relevant. The aim of this project is to identify genes involved in the regeneration process and demonstrate their participation in the stage of acquisition of cell competence for regeneration. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PINTO, MASIA DE SIQUEIRA; ABEYRATNE, CHANAKA ROSHAN; BENEDITO, VAGNER AUGUSTO; PERES, LAZARO E. P.. Genetic and physiological characterization of three natural allelic variations affecting the organogenic capacity in tomato (Solanum lycopersicum cv. Micro-Tom). PLANT CELL TISSUE AND ORGAN CULTURE, v. 129, n. 1, p. 89-103, APR 2017. (14/17553-5, 12/24714-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

PINTO, Maísa de Siqueira. Characterization of natural genetic variations affecting tomato cell competence to assume different developmental fates. 2016. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.