Function of plant homeodomain-finger proteins in vernalization pathway in Arabidopsis and other cruciferous plants.
- Author:
Gongling HU
1
;
Guoping CHEN
;
Zongli HU
;
Feng GU
;
Yong LI
Author Information
1. Bioengineering College of Chongqing University, Chongqing 400030, China.
- Publication Type:Journal Article
- MeSH:
Amino Acid Sequence;
Arabidopsis;
genetics;
metabolism;
Arabidopsis Proteins;
genetics;
metabolism;
physiology;
Brassicaceae;
genetics;
DNA-Binding Proteins;
genetics;
metabolism;
physiology;
Gene Expression Regulation, Plant;
genetics;
physiology;
Histones;
metabolism;
Homeodomain Proteins;
genetics;
metabolism;
physiology;
MADS Domain Proteins;
genetics;
metabolism;
Molecular Sequence Data;
Transcription Factors;
genetics;
metabolism;
physiology;
Zinc Fingers
- From:
Chinese Journal of Biotechnology
2010;26(1):1-8
- CountryChina
- Language:Chinese
-
Abstract:
Vernalization makes Arabidopsis and other cruciferous plants flowering earlier. During this process, an important plant homeodomain-finger(PHD-finger) protein named VIN3 is involved. The PHD domain was a conserved zinc-finger domain in eukaryotic organism. It used to take part in the interaction between proteins, especially the modification on histone of nucleosome, such as methylation, acetylation and phosphorylation. In vernaliazation pathway, the proteins translated by VERNALIZATION INSENSITIVE 3(VIN3) and homologous genes could result in methylation on H3K9 and H3K27 and deacetylation on H3K9 and H3K14 on chromatin histone of FLOWERING LOCUS C, a gene that inhibited flowering. The structure state of FLC would be changed from relaxation into compression. Then the transcription activity of FLC could be restrained and it couldn't inhibit flowering any more, so it would induce flowering earlier. This paper reviewed the function of PHD-finger proteins in vernalization pathway in Arabidopsis and other cruciferous plants, and overviewed the vernalization mechanism.
