A genome-wide survey of interaction between rice and Magnaporthe oryzae via microarray analysis

The main aim of the work is to study the regulation of gene expression in the interaction between rice and Magnaporthe oryzae by gene chip technology. In this study, we mainly focused on changes of gene expression at 24, 48, and 72 hours post-inoculation (hpi), through which we could conduct a more comprehensive analysis of rice blast-related genes in the process of infection. The results showed that the experimental groups contained 460, 1227, and 3937 significant differentially expressed genes at 24, 48, and 72 hpi, respectively. Furthermore, 115 significantly differentially expressed genes were identified in response to rice blast infection at all three time points. By annotating these 115 genes, they were divided into three categories: metabolic pathways, proteins or enzymes, and organelle components. As expected, many of these genes were known rice blast-related genes; however, we discovered new genes with high fold changes. Most of them encoded conserved hypothetical proteins, and some were hypothetically conserved genes. Our study may contribute to finding new resistance genes and understanding the mechanism of rice blast development.

Automated summary

The study aimed to investigate the regulation of gene expression in the interaction between rice and Magnaporthe oryzae using gene chip technology. Changes in gene expression at different time points post-inoculation were analyzed, revealing significant differentially expressed genes and identifying new genes related to rice blast. This research may contribute to the discovery of novel resistance genes and improve the understanding of rice blast development mechanisms.