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. 2023 Dec 31;18(1):2105021.
doi: 10.1080/15592324.2022.2105021. Epub 2022 Aug 2.

Characteristics analysis of Early Responsive to Dehydration genes in Arabidopsis thaliana (AtERD)

Guofan Wu  1 , Nongfu Tian  1 , Fawen She  1 , Aohua Cao  1 , Wangze Wu  1 , Sheng Zheng  1 , Ning Yang  1
Affiliations

Characteristics analysis of Early Responsive to Dehydration genes in Arabidopsis thaliana (AtERD)

Guofan Wu et al. Plant Signal Behav. .

Abstract

Early Responsive to Dehydration (ERD) genes are rapidly induced in response to various biotic and abiotic stresses, such as bacteria, drought, light, temperature and high salt in Arabidopsis thaliana. Sixteen ERD of Arabidopsis thaliana (AtERD) genes have been previously identified. The lengths of the coding region of the genes are 504-2838 bp. They encode 137-745 amino acids. In this study, the AtERD genes structure and promoter are analyzed through bioinformatics, and a overall function is summarized and a systematic signal pathway involving AtERD genes is mapped. AtERD9, AtERD11 and AtERD13 have the GST domain. AtERD10 and AtERD14 have the Dehyd domain. The promoters regions contain 32 light responsive elements, 23 ABA responsive elements, 5 drought responsive elements, 5 meristem expression related elements and 132 core promoter elements. The study provides a theoretical guidance for subsequent studies of AtERD genes.

Keywords: Arabidopsis thaliana; AtERD genes; bioinformatics; signal pathway.

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Conflict of interest statement

No potential conflict of interest was reported by the authors.

Figures

Figure 1.
Figure 1.
Conserved domain (left) and structure analysis (right) of 16 AtERD genes. The conserved domain and structure analysis are drawn with TBtools. Motif 3 is Dehyd domain and motif 5 is GST domain. Motif 1, motif 2 and motif 4 do not have consistent domains in the actual analysis.
Figure 2.
Figure 2.
Cis-elements in promoter regions of 16 AtERD genes. The elements are analyzed from 2000 bp upstream promoter regions and draw them with TBtools. ABA responsive element: ABRE; Light responsive element: GATA-motif, G-box, GA-motif, GT1-motif, AE-box, TCT-motif, I-box; Drought responsive element: MBS; Common cis-acting element: CAAT-box; Core promoter element: TATA-box. Meristem expression related element: CAT-box.
Figure 3.
Figure 3.
The expression pathway pattern of AtERD genes. The Lines represent interactions between proteins, and the arrows represent downstream regulation. The solid line represents direct action and the dotted line represents indirect action. The question mark indicates that it is not clear whether it has a direct effect on the way. Abbreviations used for genes: DREB, dehydration-responsive element binding protein; RD29A, responsive to desiccation 29A; HD-ZIP, homeodomain leucine zipper; ANAC72, Arabidopsis NAC domain containing protein 72; PR genes, suppressor of auxin resistance 1; CAS, calcium sensing receptor; WRKY65, WRKY DNA-binding protein 65.
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