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Genome-Wide Identification and Expression Analysis of AP2/EREBP Transcription Factors in Litchi (Litchi chinensis Sonn.)

文献类型： 外文期刊

作者： Men, Jia-li 1 ; Li, Fang 2 ; Sun, Jin-hua 2 ; Wang, Guo 2 ; Li, Huan-ling 2 ; Wang, Shu-jun 2 ; Xu, Yun 1 ; Wang, Jia-bao 2 ;

作者机构： 1.Hainan Univ, Sch Life Sci, Haikou 570203, Hainan, Peoples R China

2.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 570100, Hainan, Peoples R China

3.Minist Agr & Rural Affairs, Danzhou Sci Observing & Expt Stn Agroenvironm, Danzhou 571737, Hainan, Peoples R China

关键词： Litchi chinensis; AP2; EREBP transcription factors; Bioinformatics; Expression pattern; Somatic embryogenesis

期刊名称：TROPICAL PLANT BIOLOGY （ 影响因子：1.512； 五年影响因子：2.011 ）

ISSN： 1935-9756

年卷期： 2021 年 14 卷 4 期

页码：

收录情况： SCI

摘要： APETALA2/ethylene response element binding proteins (AP2/EREBP) are a vital type of TF involved in plant organ development and embryogenesis. In this study we identified 202 Litchi AP2/EREBP TFs from the litchi genome. They were classified into four subfamilies by phylogenetic clustering, including AP2s (20), ERFs (112), DREBs (64), and RAVs (6). Analysis of conserved domains, motifs, gene structure, and genome localization were carried out to investigate the evolutionary features of litchi AP2/EREBPs. Over 35% of DREBs and ERFs involved in the expansion of litchi AP2/EREBPs resulted from tandem duplication. The majority of genomic organizations were conservative, except those of the AP2 subfamily, which had no intron and contained less conservative motif numbers. The expression profiles of litchi AP2/EREBPs in ten tissues were investigated using RNA-Seq data and fifty-nine showed tissue-specific expressions. Their expression patterns were confirmed by qRT-PCR with eight tissues-specificity genes. Six genes related to embryogenesis were identified using the map of orthologous gene interaction between Arabidopsis and litchi. This paper is a comprehensive report on the characteristics of the litchi AP2/EREBP gene superfamily. It will serve to further explore the regulatory mechanisms of AP2/EREBP TFs in the litchi somatic embryogenesis and provide information for litchi molecular breeding.

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