The GO terms and assignments for rice genes were downloaded from Gramene database (http://www.gramene.org/) (Jaiswal[2011 (link)]) and KO from KEGG database (http://www.genome.jp/kegg/) (Kanehisa et al.[2010 (link)]). The RAP rice gene locus IDs in KEGG database were converted to RGAP IDs using RAP-DB ID converter tool (http://rapdb.dna.affrc.go.jp/tools/converter) (Tanaka et al.[2008 (link)]). Then hypergeometric distribution was used to calculate the p value for GO and KO enrichment analyses.
Free full text: Click here