Genome-Wide Identification of Histone Modifiers and Their Expression Patterns during Fruit Abscission in Litchi

Frontiers in Plant Science
Manjun PengMinglei Zhao

Abstract

Modifications to histones, including acetylation and methylation processes, play crucial roles in the regulation of gene expression in plant development as well as in stress responses. However, limited information on the enzymes catalyzing histone acetylation and methylation in non-model plants is currently available. In this study, several histone modifier (HM) types, including six histone acetyltransferases (HATs), 11 histone deacetylases (HDACs), 48 histone methyltransferases (HMTs), and 22 histone demethylases (HDMs), are identified in litchi (Litchi chinensis Sonn. cv. Feizixiao) based on similarities in their sequences to homologs in Arabidopsis (A. thaliana), tomato (Solanum lycopersicum), and rice (Oryza sativa). Phylogenetic analyses reveal that HM enzymes can be grouped into four HAT, two HDAC, two HMT, and two HDM subfamilies, respectively, while further expression profile analyses demonstrate that 17 HMs were significantly altered during fruit abscission in two field treatments. Analyses reveal that these genes exhibit four distinct patterns of expression in response to fruit abscission, while an in vitro assay was used to confirm the HDAC activity of LcHDA2, LcHDA6, and LcSRT2. Our findings are the first in-depth a...Continue Reading

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Citations

Jan 13, 2018·Frontiers in Plant Science·Ming LuoKeqiang Wu
May 31, 2020·International Journal of Molecular Sciences·Helena G SilvaM Manuela R Costa
Mar 5, 2019·The Plant Journal : for Cell and Molecular Biology·Yong-Qiang NingXin-Jian He
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Nov 20, 2019·Plant Physiology and Biochemistry : PPB·Zhongyuan LiuCaiqiu Gao
Feb 28, 2021·Cellular and Molecular Life Sciences : CMLS·Verandra KumarManoj Prasad

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Methods Mentioned

BETA
acetylation
RNA-seq
PCR
Assay

Software Mentioned

HMMER
[UNK] Analysis
ClustalW
MEGA

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