Multiple-strategy analyses of ZmWRKY subgroups and functional exploration of ZmWRKY genes in pathogen responses

Molecular BioSystems
Kaifa WeiDaoxin Xie

Abstract

The WRKY transcription factor family plays crucial roles in biotic responses, such as fungi, bacteria, viruses and nematode infections and insect attacks. In this article, multiple-strategy analyses of the three subgroups were performed in order to gain structural and evolutionary proofs of the overall WRKY family and unravel the functions possessed by each group or subgroup. Thus we analyzed the similarity of WRKY factors between maize and Arabidopsis based on homology modelling. The gene structure and motif analyses of Group II demonstrated that specific motifs existing in the given subgroups may contribute to the functional diversification of WRKY proteins and the two types of conserved intron splice sites suggest their evolutionary conservation. The evolutionary divergence time estimation of Group III proteins indicated that the divergence of Group III occurred during the Neogene period. Further, we focused on the roles of maize WRKYs in pathogen responses based on publicly available microarray experiments. The result suggested that some ZmWRKYs are expressed specifically under the infection of certain fungus, among which some are up-regulated and some are down-regulated, indicating their positive or negative roles in patho...Continue Reading

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Citations

Oct 30, 2012·DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes·Kaifa WeiDaoxin Xie
Oct 29, 2014·BMC Plant Biology·Kaifa Wei, Xiaojun Zhong
May 21, 2016·Frontiers in Plant Science·Hui SongXingjun Wang
Dec 19, 2018·International Journal of Molecular Sciences·Ling WangYouxiong Que
Oct 20, 2018·BMC Plant Biology·Hui SongJuan Sun
Feb 26, 2021·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Zhongping WeiYifei Liu
Mar 1, 2021·Molecular Plant Pathology·Saet-Byul KimPeter Balint-Kurti

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