Figure 1
Chromosomal location and physical arrangement of 11 genes' orthologs. Five duplication regions are shown in their related mapping position in the seven maize chromosomes, with tb1/2 and tbp2 closely linked. Genes (boxes) are arranged according to their gene order on an assembled BAC sequence contig (solid line within each triangle). The dashed line symbolizes about 7 cM of genetic distance between the tb1/2 and tbp1/2. For each of the BAC contigs, their actual orientations in the chromosomes are not known. The Zmfie1 and Zmfie2 are not a strict orthologous pair (see explanation in text), thus, are not included in our sequence analysis.
