PMID- 32961931 OWN - NLM STAT- MEDLINE DCOM- 20210315 LR - 20231104 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 21 IP - 18 DP - 2020 Sep 18 TI - Hypermethylation of Auxin-Responsive Motifs in the Promoters of the Transcription Factor Genes Accompanies the Somatic Embryogenesis Induction in Arabidopsis. LID - 10.3390/ijms21186849 [doi] LID - 6849 AB - The auxin-induced embryogenic reprogramming of plant somatic cells is associated with extensive modulation of the gene expression in which epigenetic modifications, including DNA methylation, seem to play a crucial role. However, the function of DNA methylation, including the role of auxin in epigenetic regulation of the SE-controlling genes, remains poorly understood. Hence, in the present study, we analysed the expression and methylation of the TF genes that play a critical regulatory role during SE induction (LEC1, LEC2, BBM, WUS and AGL15) in auxin-treated explants of Arabidopsis. The results showed that auxin treatment substantially affected both the expression and methylation patterns of the SE-involved TF genes in a concentration-dependent manner. The auxin treatment differentially modulated the methylation of the promoter (P) and gene body (GB) sequences of the SE-involved genes. Relevantly, the SE-effective auxin treatment (5.0 microM of 2,4-D) was associated with the stable hypermethylation of the P regions of the SE-involved genes and a significantly higher methylation of the P than the GB fragments was a characteristic feature of the embryogenic culture. The presence of auxin-responsive (AuxRE) motifs in the hypermethylated P regions suggests that auxin might substantially contribute to the DNA methylation-mediated control of the SE-involved genes. FAU - Grzybkowska, Daria AU - Grzybkowska D AD - Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Jagiellonska 28, 40-032 Katowice, Poland. FAU - Nowak, Katarzyna AU - Nowak K AD - Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Jagiellonska 28, 40-032 Katowice, Poland. FAU - Gaj, Malgorzata D AU - Gaj MD AUID- ORCID: 0000-0003-2995-4134 AD - Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Jagiellonska 28, 40-032 Katowice, Poland. LA - eng GR - OPUS13 2017/25/B/NZ1/01615/National Science Centre in Poland/ PT - Journal Article DEP - 20200918 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (AGL15 protein, Arabidopsis) RN - 0 (Arabidopsis Proteins) RN - 0 (BABY BOOM protein, Arabidopsis) RN - 0 (CCAAT-Enhancer-Binding Proteins) RN - 0 (Homeodomain Proteins) RN - 0 (Indoleacetic Acids) RN - 0 (LEC1 protein, Arabidopsis) RN - 0 (LEC2 protein, Arabidopsis) RN - 0 (MADS Domain Proteins) RN - 0 (Transcription Factors) RN - 0 (WUSCHEL protein, Arabidopsis) SB - IM MH - Amino Acid Motifs/drug effects MH - Arabidopsis/*embryology/genetics/*metabolism MH - Arabidopsis Proteins/genetics/metabolism MH - CCAAT-Enhancer-Binding Proteins/genetics/metabolism MH - Cells, Cultured MH - DNA Methylation MH - Epigenesis, Genetic MH - Gene Expression Regulation, Plant/*drug effects/genetics MH - Homeodomain Proteins/genetics/metabolism MH - Indoleacetic Acids/*pharmacology MH - MADS Domain Proteins/genetics/metabolism MH - Promoter Regions, Genetic MH - Transcription Factors/genetics/*metabolism PMC - PMC7555384 OTO - NOTNLM OT - DNA methylation OT - SE-related genes OT - somatic embryogenesis COIS- The authors declare that they have no conflict of interest. EDAT- 2020/09/24 06:00 MHDA- 2021/03/16 06:00 PMCR- 2020/09/01 CRDT- 2020/09/23 01:02 PHST- 2020/08/27 00:00 [received] PHST- 2020/09/09 00:00 [revised] PHST- 2020/09/16 00:00 [accepted] PHST- 2020/09/23 01:02 [entrez] PHST- 2020/09/24 06:00 [pubmed] PHST- 2021/03/16 06:00 [medline] PHST- 2020/09/01 00:00 [pmc-release] AID - ijms21186849 [pii] AID - ijms-21-06849 [pii] AID - 10.3390/ijms21186849 [doi] PST - epublish SO - Int J Mol Sci. 2020 Sep 18;21(18):6849. doi: 10.3390/ijms21186849.