Figure legends
Fig. 1 A. Photo of M. pygmaea . B. The Hi-C chromatin interaction map for the six chromosomes of M. pygmaeagenome. C. The evolutionary dynamics of LTR retrotransposons representing intact insertions during the last 10 million years.
Fig.2 A. Clusters of ortholog groups (COGs) shared betweenM. pygmaea and other Brassicaceae species grouped according to their assignment to phylogenetic Lineages in Brassicaceae (I: A. thaliana, A. lyrata, C. rubella and L. alabamica ; II: E. salsugineum, E. yunnanense, R. raphanistrum and S. irio ).B. The Ks values of M. pygmaea and other Brassicaceae species. C. The phylogenetic placement of M. pygmaea , divergence time and gene family expansions (red) and contractions (green) displayed on a maximum likelihood tree constructed from 4,245 shared single-copy gene families. The estimated divergence times (in million years ago, blue). Brassicaceae Lineage I was represented byA. thaliana, A. lyrata, C. rubella and L. alabamica , and Lineage II by E. salsugineum, E. yunnanense, R. raphanistrum andS. irio .
Fig. 3 A. Comparative karyotype based on CCP analysis showing the position of 22 genomic blocks (A–X) on six Megadeniachromosomes (Mp1-Mp6). Color coding reflects the position of genomic blocks on the eight chromosomes in ACK. The A. thaliana BAC clones delimiting each block are shown. B. Chromosomal rearrangements illustrating the origin of Megadenia genome (n = 6) from PCK-like genome (n = 7) are displayed. Black lightning symbols indicate chromosomal breakpoints.