Abstract
We have studied effect of high temperature stress on reproductive development in barley plants. Exposed to high temperature (30°C day/25°C night) for five days at the panicle differentiation stage, the following pollen development was completely aborted. In this study, we investigated prediction of coexpression by pearson's correlation coefficient among 22k gene probes, using 664 microarray experiments published on ArrayExpress at the European Bioinformatics Institute. We found expression of mitochondria-related genes were highly correlative to expression of DNA replication-related genes. In contrast, strong negative correlation was observed between expression of chloroplast-related genes and expression of DNA replication-related genes. Actually cell-proliferation arrest, abnormal mitochondria and mature chloroplast were observed in the exposed anther cells. Now we are attempting to investigate correlation between transcripts of the genes associated with each plant hormone.
