Chromosomal location of OsSABATH genes. Forty-one OsSABATH genes are localized on seven chromosomes (1, 2, 4, 5, 6, 10, and 11). Twenty-two genes are situated in six clusters (C1–C6). In each cluster, neighboring genes are found either as tandem repeats or separated by one gene that is not a SABATH family member.