Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At3g04380	Histone methyltransferase that converts monomethylated 'Lys-9' of histone H3 (H3K9me1) to dimethylated 'Lys-9' (H3K9me2) in the absence of bound ubiquitin, and to trimethylated 'Lys-9' (H3K9me3) in the presence of bound ubiquitin.	The SUVR4 histone lysine methyltransferase binds ubiquitin and converts H3K9me1 to H3K9me3 on transposon chromatin in Arabidopsis.; 2011; DOI: 10.1371/journal.pgen.1001325; PMID: 21423664; https://pubmed.ncbi.nlm.nih.gov/21423664/
Arabidopsis	At5g43990	Probable inactive histone-lysine methyltransferase that acts as regulator of transcriptional gene silencing independently of histone H3K9 methylation.	SUVR2 is involved in transcriptional gene silencing by associating with SNF2-related chromatin-remodeling proteins in Arabidopsis.; 2014; DOI: 10.1038/cr.2014.156; PMID: 25420628; https://pubmed.ncbi.nlm.nih.gov/25420628/
Arabidopsis	At1g04050	Probable inactive histone-lysine methyltransferase that acts as regulator of transcriptional gene silencing independently of histone H3K9 methylation.	No verified direct reference in this release