Post-Embryonic Phase Transitions Mediated by Polycomb Repressive Complexes in Plants

Correct timing of developmental phase transitions is critical for the survival and fitness of plants. Developmental phase transitions in plants are partially promoted by controlling relevant genes into active or repressive status. Polycomb Repressive Complex1 (PRC1) and PRC2, originally identified i...

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Bibliographic Details
Published in:International journal of molecular sciences 2021-07, Vol.22 (14), p.7533
Main Authors: Hinsch, Valerie, Adkins, Samuel, Manuela, Darren, Xu, Mingli
Format: Article
Language:English
Subjects:
Animal reproduction
chromatin
embryo-to-seedling transition
Embryos
Flowers & plants
Gene expression
Genes
Genomes
H3K27me3
Insects
Juveniles
Mutation
Phase transitions
Plants (botany)
Polycomb group proteins
PRC1
PRC2
Proteins
Review
Seedlings
Seeds
vegetative phase transition
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Summary:Correct timing of developmental phase transitions is critical for the survival and fitness of plants. Developmental phase transitions in plants are partially promoted by controlling relevant genes into active or repressive status. Polycomb Repressive Complex1 (PRC1) and PRC2, originally identified in Drosophila, are essential in initiating and/or maintaining genes in repressive status to mediate developmental phase transitions. Our review summarizes mechanisms in which the embryo-to-seedling transition, the juvenile-to-adult transition, and vegetative-to-reproductive transition in plants are mediated by PRC1 and PRC2, and suggests that PRC1 could act either before or after PRC2, or that they could function independently of each other. Details of the exact components of PRC1 and PRC2 in each developmental phase transitions and how they are recruited or removed will need to be addressed in the future.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms22147533