Figure 6
From: Comparative genomics reveals conservative evolution of the xylem transcriptome in vascular plants
Hot spots of putative xylem orthologs on the chromosomes of Arabidopsis. The 1,003 loblolly pine xylem unigenes highly conserved in other vascular plants (xylem orthologs) have strong homology (1e-50) with 3,115 loci and moderate homology (1e-5) with 6,563 loci in the Arabidopsis genome. Positioning of these homologs on the five chromosomes of Arabidopsis revealed eight hot spots of putative Arabidopsis xylem orthologs. A: 3,115 highly homologous loci; B: 6,563 moderately homologous loci; C: 6,000 randomly selected loci.