| A | atrium |
| ADL | adult (mouse hearts) |
| A/P | aorta and pulmonary trunk |
| ac4C | N4-acetylcytidine |
| 5fC | 5-formyl-cytosine |
| hm5C | 5-hydroxymethylcytidine |
| 5hmC | 5-hydroxymethylcytosine |
| m5C | 5-methylcytidine |
| 5mC | 5-methylcytosine |
| DMEM | Dulbecco’s Modified Eagle Medium |
| dn | double null |
| EB | embryoid body |
| FI | fluorescence intensity |
| FTO | fat mass and obesity-associated protein |
| H3K4me2 | H3K4 di-methylation |
| H3K9me3 | H3K9 tri-methylation |
| HDAC1 | histone deacetylase 1 |
| HDACi | histone deacetylase inhibitors |
| IF | immunofluorescence |
| IVS | intraventricular septum |
| LA | left atrium |
| LV | left ventriculus |
| LIF | leukemia inhibitory factor |
| lncRNAs | long noncoding RNAs |
| METTL14 | methyltransferase-like 14 |
| METTL3 | methyltransferase-like 3 |
| mESCs | mouse embryonic stem cells |
| m6A | N6-adenosine methylation |
| m6A | N6-methyladenosine |
| ncRNAs | noncoding RNAs |
| PT | pulmonary trunk |
| RA | right atrium |
| RV | right ventriculus |
| SAHA | suberoylanilide hydroxamic acid |
| TETs | ten-eleven translocation enzymes |
| TAC | transverse aortic constriction |
| TSA | Trichostatin A |
| VPA | valproic acid |
| V | ventriculus |
| wt | wild type |