지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.10
- 수록면
- 746 - 757 (12page)
- DOI
- 10.14348/molcells.2021.0160
이용수
초록· 키워드
오류제보하기
Plant somatic cells can be reprogrammed into a pluripotent cell mass, called callus, which can be subsequently used for de novo shoot regeneration through a two-step in vitro tissue culture method. MET1-dependent CG methylation has been implicated in plant regeneration in Arabidopsis, because the met1-3 mutant exhibits increased shoot regeneration compared with the wild-type. To understand the role of MET1 in de novo shoot regeneration, we compared the genome-wide DNA methylomes and transcriptomes of wild-type and met1-3 callus and leaf. The CG methylation patterns were largely unchanged during leaf-to-callus transition, suggesting that the altered regeneration phenotype of met1-3 was caused by the constitutively hypomethylated genes, independent of the tissue type. In particular, MET1-dependent CG methylation was observed at the blue light receptor genes, CRYPTOCHROME 1 (CRY1) and CRY2, which reduced their expression. Coexpression network analysis revealed that the CRY1 gene was closely linked to cytokinin signaling genes. Consistently, functional enrichment analysis of differentially expressed genes in met1-3 showed that gene ontology terms related to light and hormone signaling were overrepresented. Overall, our findings indicate that MET1-dependent repression of light and cytokinin signaling influences plant regeneration capacity and shoot identity establishment.
목차
등록된 정보가 없습니다.
참고문헌 (66)
참고문헌 신청
Atta, R. / 2009 / Pluripotency of Arabidopsis xylem pericycle underlies shoot regeneration from root and hypocotyl explants grown in vitro / Plant J 57:626~644
Bartee, L. / 2001 / Arabidopsis cmt3chromomethylase mutations block non-CG methylation and silencing of an endogenous gene / Genes Dev 15:1753~1758
Baubec, T. / 2013 / Methylationdependent and-independent genomic targeting principles of the MBD protein family / Cell 153:480~492
Bhatia, H. / 2018 / Genome-wide bisulphite-sequencing reveals organ-specific methylation patterns in chickpea / Sci. Rep 8:9704
Brackertz, M. / 2002 / Two highly related p66 proteins comprise a new family of potent transcriptional repressors interacting with MBD2 and MBD3 / J. Biol. Chem 277:40958~40966
Bartee, L. / 2001 / Arabidopsis cmt3chromomethylase mutations block non-CG methylation and silencing of an endogenous gene / Genes Dev 15:1753~1758
Baubec, T. / 2013 / Methylationdependent and-independent genomic targeting principles of the MBD protein family / Cell 153:480~492
Bhatia, H. / 2018 / Genome-wide bisulphite-sequencing reveals organ-specific methylation patterns in chickpea / Sci. Rep 8:9704
Brackertz, M. / 2002 / Two highly related p66 proteins comprise a new family of potent transcriptional repressors interacting with MBD2 and MBD3 / J. Biol. Chem 277:40958~40966
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