Genetic and Molecular Basis of Wheat–Magnaporthe oryzae Triticum Interaction
Authors:
- Jéssica Rosset FerreiraJFJéssica Rosset Ferreira
- Gisele Abigail Montan TorresGTGisele Abigail Montan Torres
- Luciano ConsoliLCLuciano Consoli
- Eliseu BinneckEBEliseu Binneck
- Gabriela Andriolio CamilottiGCGabriela Andriolio Camilotti
- Sandra Maria Mansur ScagliusiSSSandra Maria Mansur Scagliusi
- Carolina Cardoso DeunerCDCarolina Cardoso Deuner
- Alexei de Campos DianeseADAlexei de Campos Dianese
- Augusto César Pereira GoulartAGAugusto César Pereira Goulart
- Claudine Dinali Santos SeixasCSClaudine Dinali Santos Seixas
- Maurício Antônio de Oliveira CoelhoMCMaurício Antônio de Oliveira Coelho
- 9 April 2020
- book chapter
- Published by Taylor & Francis
- p. 69-104
Abstract
Wheat blast disease, caused by Magnaporthe oryzae pathotype Triticum, was observed in countries of South America and recently in Asia. The spike infection is the most destructive form of the disease due to high reductions in yield and grain quality. To date, nine resistance genes and one hidden resistance gene to blast have been identified in wheat. An association between wheat resistance to blast and the presence of a chromosomal segment (2NS) from Triticum ventricosum was also found. In Brazil, where the disease is endemic, only two cultivars are described as blast resistant. Many aspects of the wheat–M. oryzae Triticum interaction remain to be elucidated. This chapter discusses the genetic and molecular basis of the wheat–M. oryzae Triticum interaction. Phenotyping and grain production data from genotypes contrasting with disease response are presented. A doubled-haploid wheat population was also phenotyped. The parents of the population were submitted to an RNA-seq strategy to examine and compare the overall gene expression levels in spikes when submitted or not to inoculation with M. oryzae Triticum. The molecular functions most representative in gene ontology terms were observed and genes potentially involved in the innate immune mechanisms of the resistant genotype against the blast pathogen were identified.Keywords
This publication has 1 reference indexed in Scilit:
- Plant Receptor-Like Serine Threonine Kinases: Roles in Signaling and Plant DefenseMolecular Plant-Microbe Interactions®, 2008