Insights into the role of DNA methylation in diatoms by genome-wide profiling in Phaeodactylum tricornutum

Genome-wide maps of DNA methylation have so far been restricted to plants, animals and fungi. Here, the authors report the first whole-genome methylome of a stramenopile, the diatom Phaeodactylum tricornatum, and provide insight into the evolution of DNA methylation in eukaryotes.