2.3.2. Gene Co-Expression Network Analysis

The rice loci containing the di fferent SNPs were used for a gene co-expression network analysis. To predict the important loci involved in drought tolerance, a rice oligonucleotide array database was used with abiotic stress-induced gene expression data with a correlation coe fficient cut-o ff of 0.95 [19]. The predicted loci were searched for gene ontology and expression patterns from the rice expression database [20].

### *2.4. Identification of Drought-Tolerance Gene Function in Arabidopsis*
