Figure 3.

Synteny of the Amborella genome with other plant genomes. Illustrated here is a physical map of a 0.65 Mb region of the Amborella nuclear genome (highlighted in yellow) showing synteny with segments in each of the Arabidopsis, poplar, grapevine, and rice genomes. Two homologous segments are shown in each case: one above and one below the Amborella map. The physical map is based on high information content fingerprinting of an Amborella BAC library. Synteny was inferred over 5 Mb tracts of sequenced genomes on the basis of BAC-end sequences matching the reference genomes with TBLASTX bit scores of greater than 80. Red and green ovals depict BAC-end Amborella sequences with significant hits to known transposable elements and protein-coding genes, respectively.