Cadmium Tolerance in tomato: Determination of tissue-specific contribution by diallel analysis in approaches using reciprocal grafts

• Grant number: 18/22671-8
• Support Opportunities: Regular Research Grants
• Start date: August 01, 2019
• End date: July 31, 2020
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: Fernando Angelo Piotto
• Grantee: Fernando Angelo Piotto
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated researchers: Katherine Derlene Batagin Piotto ; Ricardo Antunes de Azevedo ; Salete Aparecida Gaziola

Abstract

Considering the increasing problems due to the contamination of water and soil with cadmium (Cd), it is necessary to study the genetic-physiological mechanisms of the tolerance to this metal, in order to better understand the mechanisms of tolerance, which can be used as a management strategy for the stress caused by this metal. Thus, the objective of this work is to determine the tissue-specific contribution to Cd tolerance in tomato, using the reciprocal grafting technique between parents with different levels of tolerance to this metal, and unfolding the results through diallel analysis between combinations. For that, we will use approaches involving the use of the reciprocal grafting technique and diallel analysis, to evaluate the combination of genotypes previously characterized as being contrasting when tolerance to Cd in tomato. The composition of each grafted genotype will be given by the combination between the genotypes used as graft and rootstock, whose union of the effects of the combination of the alleles will be tissue-specific. Once the combinations in reciprocal grafting are used, it will be possible to detail the contribution of each genotype used as graft and rootstock to the general tolerance of each grafted plant. Finally, Cd tolerance studies on the results of the parameters evaluated in grafting combinations between genotypes can open the door to new proposals, generating relevant theoretical-applied results for the research in this area. (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)

MARQUES, DEYVID NOVAES; MASON, CHASE; STOLZE, SARA CHRISTINA; HARZEN, ANNE; NAKAGAMI, HIROFUMI; SKIRYCZ, ALEKSANDRA; PIOTTO, FERNANDO ANGELO; AZEVEDO, RICARDO ANTUNES. Grafting systems for plant cadmium research: Insights for basic plant physiology and applied mitigation. Science of The Total Environment, v. 892, p. 18-pg., 2023-06-09. (22/11018-7, 21/06117-3, 20/12666-7, 17/05544-0, 18/22671-8, 18/20706-9)