DNA Modification: 7 different Types Modification Presence Reference 5mC(5) CpG islands 1%in vertebrate genomes and C elegans does not have. 5hmc( 6th m平基化2172018年:5 mc are converted to 5C(7th)生物学研究热点第四位 cac(8th) N6mA( 9th) Major in bacteria Truss M, Bartsch J, Chalepakis 藻类丶线虫、果蝇和人类G, Beato m. Nucleic Acids res. 1992Apr11;20:1483-6. ce2015 4mc(10th) Major in certain bacteria 7mG( 11th) Major in bacteriaDNA Modification: 7 different Types Modification Presence Reference 5mC （5 th） CpG islands ~1% in vertebrate genomes and C. elegans does not have. 5hmC （6 th） ~1% of 5mC are converted to hm5C 5fC（7th） 5caC（8th） N6mA （9 th） Major in bacteria 藻类、线虫、果蝇和人类 Truss M, Bartsch J, Chalepakis G, Beato M. Nucleic Acids Res. 1992 Apr 11;20:1483–6. Cell 2015 4mC （10th） Major in certain bacteria 7mG（11th） Major in bacteria mRNA甲基化2017和2018年 生物学研究热点第四位