CpG methylation site in the non-LTR retrotransposon nimbus ( BgI ). Schematic representation of CpG methylation in 22 CpG sites of 14 DNA molecules of the 751 bp fragment of BgI in B. glabrata (Bg Bre and Bg Gua). Data was investigated by bisulfite sequencing. Black and white circles correspond to methylated and non-methylated CpGs, respectively. No methylation was detected outside CpGs.