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Fig. 1 | Genome Biology

Fig. 1

From: Methylome evolution in plants

Fig. 1

a Overview of genome-wide methylation levels (GMLs) in 32 angiosperm species as determined from whole-genome bisulfite sequencing data. GMLs approximate the percentage of all cytosines in the genome that are methylated. b Phylogeny-adjusted regression fit shows that genome size is positively correlated with GMLs, explaining about 14% of interspecific variation in GMLs (Var expl. ). c Phylogeny-adjusted regression fit shows that the total number of annotated repeats is positively correlated with GMLs, explaining about 6% of interspecific variation in GMLs (Var expl. ). d Phylogeny-adjusted regression fits show that genome size is correlated with context-specific GMLs in contexts CG and CHG, but not in context CHH. The arrow points to Eutrema salsugineum, a natural CMT3 mutant, which shows relatively low CHG- and CG-specific GMLs. Note: Zea mays was excluded from all regression analyses as it is an influential outlier because of its large genome size

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