Advance on Epigenetic Modification During Plant Callus Induction

doi:10.13560/j.cnki.biotech.bull.1985.2020-1302

Abstract

Abstract:

Plant tissue culture is a complex development process,and it can be divided into three main stages：callus induction,adventitious shoot regeneration and adventitious root induction. Effective callus induction is of great significance for biological science research. Plant callus induction refers to differentiated cells reversed into pluripotent stem cells,and is a result of the interaction of genes in differentiated cells under the stimulation of complex external factors,which is not only regulated by many external signals,but also affected by internal diverse epigenetic modifications. Changes in epigenetics information in an organism leads to more profound impact than changes in genomic DNA sequences,and can affect every aspect of plant tissue culture. Early studies show that epigenetic modification plays an important role in the induction of plant callus. Therefore,this paper reviews the effects of some epigenetic modifications such as DNA methylation,histone modification,small RNA,transposon and chromatin remodeling on the induction of plant callus,analyzes the regulatory mechanism,summarizes the major issues of epigenetics modification in this field,and prospects for future research directions,which is not only conducive to deepening the understanding of callus induction process,also to callus induction work of recalcitrant plants and even to promoting the development of transgenic plants.

Key words: callus induction, DNA methylation, histone modification, small RNA, chromatin remodeling

WANG Jian-yong, ZOU Yong-mei, GE Yan-bin, WANG Kai, XI Meng-li. Advance on Epigenetic Modification During Plant Callus Induction[J]. Biotechnology Bulletin, 2021, 37(8): 253-262.

Figures/Tables 1

References 61

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