scholarly journals Comparative genome-wide analysis of WRKY, MADS-box and MYB transcription factor families in Arabidopsis and rice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Muhammad-Redha Abdullah-Zawawi ◽  
Nur-Farhana Ahmad-Nizammuddin ◽  
Nisha Govender ◽  
Sarahani Harun ◽  
Norfarhan Mohd-Assaad ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Gene Structure ◽  
Stress Responses ◽  
Biotic Stress ◽  
Rice Genome ◽  
Model Systems ◽  
Mads Box ◽  
Abiotic And Biotic Stress ◽  
Developmental Processes ◽  
Gene Pairs

AbstractTranscription factors (TFs) form the major class of regulatory genes and play key roles in multiple plant stress responses. In most eukaryotic plants, transcription factor (TF) families (WRKY, MADS-box and MYB) activate unique cellular-level abiotic and biotic stress-responsive strategies, which are considered as key determinants for defense and developmental processes. Arabidopsis and rice are two important representative model systems for dicot and monocot plants, respectively. A comprehensive comparative study on 101 OsWRKY, 34 OsMADS box and 122 OsMYB genes (rice genome) and, 71 AtWRKY, 66 AtMADS box and 144 AtMYB genes (Arabidopsis genome) showed various relationships among TFs across species. The phylogenetic analysis clustered WRKY, MADS-box and MYB TF family members into 10, 7 and 14 clades, respectively. All clades in WRKY and MYB TF families and almost half of the total number of clades in the MADS-box TF family are shared between both species. Chromosomal and gene structure analysis showed that the Arabidopsis-rice orthologous TF gene pairs were unevenly localized within their chromosomes whilst the distribution of exon–intron gene structure and motif conservation indicated plausible functional similarity in both species. The abiotic and biotic stress-responsive cis-regulatory element type and distribution patterns in the promoter regions of Arabidopsis and rice WRKY, MADS-box and MYB orthologous gene pairs provide better knowledge on their role as conserved regulators in both species. Co-expression network analysis showed the correlation between WRKY, MADs-box and MYB genes in each independent rice and Arabidopsis network indicating their role in stress responsiveness and developmental processes.

scholarly journals WRKY Proteins: Signaling and Regulation of Expression during Abiotic Stress Responses

2015 ◽  
Vol 2015 ◽  
pp. 1-17 ◽  
Author(s):  
Aditya Banerjee ◽  
Aryadeep Roychoudhury
Keyword(s):  
Abiotic Stress ◽  
Stress Responses ◽  
Biotic Stress ◽  
Abiotic Stresses ◽  
Abiotic Stress Tolerance ◽  
Plant Signaling ◽  
Biological Functions ◽  
Abiotic And Biotic Stress ◽  
Regulation Of Expression ◽  
Wrky Proteins

WRKY proteins are emerging players in plant signaling and have been thoroughly reported to play important roles in plants under biotic stress like pathogen attack. However, recent advances in this field do reveal the enormous significance of these proteins in eliciting responses induced by abiotic stresses. WRKY proteins act as major transcription factors, either as positive or negative regulators. Specific WRKY factors which help in the expression of a cluster of stress-responsive genes are being targeted and genetically modified to induce improved abiotic stress tolerance in plants. The knowledge regarding the signaling cascade leading to the activation of the WRKY proteins, their interaction with other proteins of the signaling pathway, and the downstream genes activated by them are altogether vital for justified targeting of theWRKYgenes. WRKY proteins have also been considered to generate tolerance against multiple abiotic stresses with possible roles in mediating a cross talk between abiotic and biotic stress responses. In this review, we have reckoned the diverse signaling pattern and biological functions of WRKY proteins throughout the plant kingdom along with the growing prospects in this field of research.

scholarly journals Grapevine Biotechnology: Molecular Approaches Underlying Abiotic and Biotic Stress Responses

10.5772/64872 ◽  
2016 ◽  
Author(s):  
Grace Armijo ◽  
Carmen Espinoza ◽  
Rodrigo Loyola ◽  
Franko Restovic ◽  
Claudia Santibáñez ◽  
...  
Keyword(s):  
Stress Responses ◽  
Biotic Stress ◽  
Abiotic And Biotic Stress ◽  
Molecular Approaches ◽  
Biotic Stress Responses

scholarly journals AtERF60 negatively regulates ABR1 to modulate salt, drought, and basal resistance in Arabidopsis

2021 ◽  
Author(s):  
Gajendra Singh Jeena ◽  
Ujjal Jyoti Phukan ◽  
Neeti Singh ◽  
Ashutosh Joshi ◽  
Alok Pandey ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Salt Stress ◽  
Stress Responses ◽  
Biotic Stress ◽  
Bacterial Pathogen ◽  
Pcr Analysis ◽  
Cis Elements ◽  
Abiotic And Biotic Stress ◽  
Basal Resistance ◽  
Drought And Salt Stress

ABSCISIC ACID REPRESSOR-1 (ABR1), an APETALA2 (AP2) domain containing transcription factor (TF) contribute important function against variety of external cues. Here, we report an AP2/ERF TF, AtERF60 that serves as an important regulator of ABR1 gene. AtERF60 is induced in response to drought, salt, abscisic acid (ABA), salicylic acid (SA), and bacterial pathogen PstDC3000 infection. AtERF60 interacts with DEHYDRATION RESPONSE ELEMENTS (DRE1/2) and GCC box indicating its ability to regulate multiple responses. Overexpression of AtERF60 results in the drought and salt stress tolerant phenotype in both seedling and mature Arabidopsis plants in comparison with the wild type (WT-Col). However, mutation in AtERF60 showed hyperactive response against drought and salt stress in comparison with its overexpression and WT. Microarray and qRT-PCR analysis of overexpression and mutant lines indicated that AtERF60 regulates both abiotic and biotic stress inducible genes. One of the differentially expressing transcripts was ABR1 and we found that AtERF60 interacts with the DRE cis-elements present in the ABR1 promoter. The mutation in AtERF60 showed ABA hypersensitive response, increased ABA content, and reduced susceptibility to PstDC3000. Altogether, we conclude that AtERF60 represses ABR1 transcript by binding with the DRE cis-elements and modulates both abiotic and biotic stress responses in Arabidopsis.

scholarly journals Linking Autophagy to Abiotic and Biotic Stress Responses

2019 ◽  
Vol 24 (5) ◽  
pp. 413-430 ◽  
Author(s):  
Santiago Signorelli ◽  
Łukasz Paweł Tarkowski ◽  
Wim Van den Ende ◽  
Diane C. Bassham
Keyword(s):  
Stress Responses ◽  
Biotic Stress ◽  
Abiotic And Biotic Stress ◽  
Biotic Stress Responses

scholarly journals Functional analysis of a NAC-type transcription factor OsNAC6 involved in abiotic and biotic stress-responsive gene expression in rice

2007 ◽  
Vol 51 (4) ◽  
pp. 617-630 ◽  
Author(s):  
Kazuo Nakashima ◽  
Lam-Son P. Tran ◽  
Dong Van Nguyen ◽  
Miki Fujita ◽  
Kyonoshin Maruyama ◽  
...  
Keyword(s):  
Gene Expression ◽  
Functional Analysis ◽  
Transcription Factor ◽  
Biotic Stress ◽  
Abiotic And Biotic Stress ◽  
Responsive Gene
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