Figure 3

Collinearity of PGs in AGI block 23a. After locating areas with similarities in the block 23a (see also Additional data file 4), six distinct PG-containing regions were defined. (a) At2g40310 does not have PG in the collinear region. (b) At2g41850 and At3g57510 are located in collinear regions. (c) The 3' end of At3g57790 is highly similar to At2g42310*, a truncated PG that is likely a pseudogene. (d) A tandem of four PGs (At2g43860, At2g43870, At2g43880, At2g43890) is located in the collinear region with At3g59850. (e) At3g61490 does not have any PG in the corresponding collinear region. (f) At3g62210 does not have any PG in the collinear region. For each region pair, the solid black bars are the chromosomes (top: chromosome 2, bottom: chromosome 3) flanked by the starting and ending positions in Mb. The annotated genes are drawn to scale in a rectangular box on the chromosome and in each box the thicker black line indicates the 3' position of the gene. The names are only shown for PGs and the starting and ending genes in each block pair. The areas that are at least 30 amino acids long with at least 50% identity are linked by colored lines based on their identity levels (see key).