Figure 1.

Genomic structures of rice Rops. Coding regions are in dark gray, untranslated regions (UTRs; based on known cDNA sequences) are in white, and blocks of CNSs are checkered. The Rop phylogenetic group to which each gene belongs (see Fig. 2) is noted to the left, and other grass species orthologs are identified to the right. Orthologs that share the identified CNS sequences are in bold. Groups 1 and 2 have eight exons, and groups 3 and 4 have seven exons; exon/intron junction sites are conserved among Rops for which the genomic sequence is known.