Another type, chromomethylation, is guided by histone H3 lysine 9 methylation to heterochromatin across the genome. One type, RNA-directed DNA methylation (RdDM), is guided by small interfering RNAs (siRNAs) to the edges of transposons that are close to genes, areas called mCHH islands in maize ( Zea mays). Plants make use of distinct types of DNA methylation characterized by their DNA methyltransferases and modes of regulation.
0 Comments
Leave a Reply. |