Fig. 3.

Schematic representation of the chromosomal regions covering genes involved in a four-to-one orthology between Arabidopsis and rice. Top part of the figure is the chromosomal region from rice (from gene locus Os07g43540.1 to gene locus Os07g43570.1). Bottom part of the figure is the chromosomal region from Arabidopsis, representing 23 genes (from gene locus At4g23120 to At4g23340; the numbers in the picture do not carry “At4g”). Black arrows represent the four Arabidopsis and the one rice gene involved in this orthology, and dashed curved connecting lines show the orthology relationships. Black bracket-like lines depict duplication and genes connected and included within by black bracket line are duplicated to each other. Dotted lines depict coexpression relationship and genes connected and included by dotted line are coexpressed with each other