Análise funcional de genes de cana-de-açúcar modulados por seca em raízes

Author(s)

Giovanna Vieira Guidelli

• Document type: Doctoral Thesis
• Press: Campinas, SP.
• Institution: Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia
• Defense date: 2018-01-31

Examining board members

Marcelo Menossi; Renato Vicentini; Marcelo de Almeida Silva; Silvana Aparecida Creste Dias de Souza

• Advisor: Marcelo Menossi

Abstract

Sugarcane is a crop of global economic importance, acting as raw material especially in the production of sugar and ethanol. Sugarcane is affected by various types of biotic and abiotic stresses, and drought is one of the main factors reducing sugarcane productivity. Drought acts on the plant varieties of several ways, causing alterations in shoots and roots. Roots play an important role in the maintenance of plant functions under stress conditions, and their properties have great influence on responses to water scarcity. However, the knowledge on gene expression changes in plant roots subject to drought is still very restricted, although it is an important step for the identification of genes with potential for the production of plants more tolerant to water deficit. Therefore, this project aims to identify genes modulated by drought in sugarcane roots for functional studies using Arabidopsis thaliana and sugarcane transgenic plants. Using RNA-Seq data from two sugarcane cultivars (RB92579 and RB72454) we selected 10 potentially relevant genes in root responses in drought conditions. Severe and moderate stress tests using Arabidopsis and sugarcane transgenic plants overexpressing some of these genes indicated the involvement in drought tolerance mechanisms (AU)

• FAPESP's process: 14/26521-0 - Going deeper into drought tolerance in sugarcane: molecular analysis of root responses
• Grantee: Giovanna Vieira Guidelli
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)