Table 1.
Auxin homeostasis-related genes with directly proven epigenetic regulation.
| Gene Name | AGI Code | Regulated by | Developmental or Response to Ambient Process | Reference | |
|---|---|---|---|---|---|
| Auxin biosynthesis | YUC1 | At4g32540 | CLF, LHP1 | Floral patterning | [35] |
| YUC2 | At4g13260 | DRM1, DRM2, CMT3, Locus_77297 | Leaf growth and high-temperature response | [48,49] | |
| YUC3 | At1g04610 | BRM, REF6 | n.s. | [63] | |
| YUC4 | At5g11320 | CLF, LHP1, CHR11, CHR17 | Floral patterning and floral determinacy | [31,35] | |
| YUC8 | At4g28720 | MRG2 | Shade-induced hypocotyl elongation | [43] | |
| YUC9 | At1g04180 | ARP4 | Shade-induced hypocotyl elongation | [42] | |
| YUC10 | At1g48910 | FIS2-PRC2 | Endosperm development | [36] | |
| Auxin transport | PID | At2g34650 | DML1, DML2, DML3, LHP1, lincRNA-APOLO | Gravitropic response | [55] |
| PIN1 | At1g73590 | BRM, CLF, REF6, INO80, NRP1, NRP2, ELP2 | Inflorescence and root meristem maintenance, primary and lateral root development | [53,57,62,66,67] | |
| PIN2 | At5g57090 | BRM | Root stem cell maintenance | [53] | |
| PIN3 | At1g70940 | BRM, REF6 | Root stem cell maintenance, lateral root formation | [53,62] | |
| PIN4 | At2g01420 | BRM | Root stem cell maintenance | [53] | |
| PIN7 | At1g23080 | BRM, REF6 | Root stem cell maintenance, lateral root formation | [53,62] |
ARP4, ACTIN-RELATED PROTEIN 4; BRM, BRAHMA; CLF, CURLY LEAF; CHR11, CHROMATIN REMODELING 11; CMT3, CHROMOMETHYLASE3; DML1, DEMETER-LIKE 1; DRM1, DOMAINS REARRANGED1; ELP2, ELONGATOR COMPLEX SUBUNIT2; FIS2, FERTILIZATION INDEPENDENT SEED2; INO80, INOSITOL AUXOTROPHY80; LHP1, LIKE HETEROCHROMATIN 1; lincRNA-APOLO; long intergenic noncoding RNA-APOLO; MRG2, MORF-RELATED GENE 2 (MRG2); NRP1, NAP-RELATED PROTEIN1; PRC2, POLYCOMB REPRESSIVE COMPLEX 2; REF6; RELATIVE EARLY FLOWERING 6; n.s. stands for nonstudied.