Fig. P1.

Remarkable structural and functional diversity of plant LIMEs. Shown is an example of LIMEs found in chromosome 3 of the Arabidopsis plant, depicted as colored ticks with complex LIMEs above and repetitive LIMEs below each chromosome sequence. Tick color corresponds to the total number of genomes sharing a LIME: red for three genomes, orange for four genomes, light blue for five genomes, and dark blue for six genomes. When two LIMEs are 45 kbp or less apart, they are grouped in the same box. Once there are more than 20 LIMEs in such a box, the box size is unchanged but correct proportions of LIMEs shared by three, four, five, and six genomes are depicted by the relative thickness of the colored parts. Orange numbers specify the total number of LIMEs per box; gray letters below each box of repetitive LIMEs correspond to the repeated motif(s) forming these LIMEs. The identified position of the centromere used as a reference is shown as a gray box. Shown below is a detailed representation of a chromosome 3 region that includes two LIMEs shared by all six genomes and the nearest genes.