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Genome-wide analysis of WRKY transcription factors in Aquilaria sinensis (Lour.) Gilg.


ABSTRACT: The WRKY proteins are a superfamily of transcription factor that regulate diverse developmental and physiological processes in plants. Completion of the whole-genome sequencing of Aquilaria sinensis allowed us to perform a genome-wide investigation for WRKY proteins. Here, we predicted 70 WRKY genes from the A. sinensis genome and undertaken a comprehensive bioinformatic analysis. Due to their diverse structural features, the 70 AsWRKY genes are classified into three main groups (group I-III), with five subgroups (IIa-IIe) in group II, except two belong to none of them. Distinct expression profiles of AsWRKYs with RNA sequencing data revealed their diverse expression patterns among different tissues and in the process of whole-tree-inducing agarwood formation. Based on the expression characteristics, we predict some AsWRKYs are pseudogenes, and some may be involved in the biosynthesis of agarwood sesquiterpenes as activators or repressors. Among the tested genes treated with MeJA and H2O2, most of them are induced by H2O2, but downregulated by MeJA, implying the complexity of their involvement in signal transduction regulation. Our results not only provide a basic platform for functional identification of WRKYs in A. sinensis but important clues for further analysis their regulation role in agarwood formation.

SUBMITTER: Xu YH 

PROVIDER: S-EPMC7033210 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Genome-wide analysis of WRKY transcription factors in Aquilaria sinensis (Lour.) Gilg.

Xu Yan-Hong YH   Sun Pei-Wen PW   Tang Xiao-Lin XL   Gao Zhi-Hui ZH   Zhang Zheng Z   Wei Jian-He JH  

Scientific reports 20200220 1


The WRKY proteins are a superfamily of transcription factor that regulate diverse developmental and physiological processes in plants. Completion of the whole-genome sequencing of Aquilaria sinensis allowed us to perform a genome-wide investigation for WRKY proteins. Here, we predicted 70 WRKY genes from the A. sinensis genome and undertaken a comprehensive bioinformatic analysis. Due to their diverse structural features, the 70 AsWRKY genes are classified into three main groups (group I-III), w  ...[more]

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