You can create a genome data from a GFF formatted file, which is available from the following link.
https://rapdb.dna.affrc.go.jp/download/irgsp1.html
You can download an SOA file including the genome and GSE18787 series data on Agilent-015241 Rice 4x44K microarray. If you're going to analyze the microarray data, the SOA file makes your start easy.