CCCH Zinc Finger Genes in Barley: Genome-Wide Identification, Evolution, Expression and Haplotype Analysis

2021 ◽  
Author(s):  
Qi Ai ◽  
Wenqiu Pan ◽  
Yan Zeng ◽  
Yihan Li ◽  
Licao Cui
Keyword(s):  
Transcription Factors ◽  
Abiotic Stress ◽  
Zinc Finger ◽  
Molecular Breeding ◽  
Animal Feed ◽  
Expression Profiles ◽  
Exome Capture ◽  
Biotic And Abiotic Stress ◽  
Motif Analysis ◽  
Developmental Processes

Abstract Background: CCCH transcription factors are important zinc finger transcription factors involved in the response to biotic and abiotic stress and physiological and developmental processes. Barley (Hordeum vulgare) is an agriculturally important cereal crop with multiple uses, such as brewing production, animal feed, and human food. The identification and assessment of new functional genes are important for the molecular breeding of barley. Results: In this study, a total of 35 protein-encoding CCCH genes unevenly dispersed on seven different chromosomes were identified in barley. Phylogenetic analysis categorized the barley CCCH genes (HvC3Hs) into seven subfamilies according to their distinct features, and this classification was supported by intron–exon structure and conserved motif analysis. Despite the large genome size of barley, the lower number of CCCH genes in barley might be attributed to the low frequency of segmental and tandem duplication events. Furthermore, the HvC3H genes displayed distinct expression profiles for different developmental processes and in response to various types of stresses. The expression of HvC3H9 was significantly induced by multiple types of abiotic stress and/or phytohormone treatment, which might make it an excellent target for the molecular breeding of barley. Genetic variation of HvC3Hs was characterized using publicly available exome-capture sequencing datasets. Clear genetic divergence was observed between wild and landrace barley populations in HvC3H genes. For most HvC3Hs, nucleotide diversity and the number of haplotype polymorphisms decreased during barley domestication. Conclusion: Overall, our study provides a comprehensive characterization of barley CCCH transcription factors, their diversity, and their biological functions.

scholarly journals Genome-Wide Characterization, Expression Profile Analysis of WRKY Family Genes in Santalum album and Functional Identification of Their Role in Abiotic Stress

2019 ◽  
Vol 20 (22) ◽  
pp. 5676 ◽  
Author(s):  
Haifeng Yan ◽  
Mingzhi Li ◽  
Yuping Xiong ◽  
Jianming Wu ◽  
Jaime A. Teixeira da Silva ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Expression Profiles ◽  
Expression Patterns ◽  
Protein Sequences ◽  
Santalum Album ◽  
Biotic And Abiotic Stress ◽  
Functional Identification ◽  
Wrky Protein

WRKY proteins are a large superfamily of transcription factors that are involved in diverse biological processes including development, as well as biotic and abiotic stress responses in plants. WRKY family proteins have been extensively characterized and analyzed in many plant species, including Arabidopsis, rice, and poplar. However, knowledge on WRKY transcription factors in Santalum album is scarce. Based on S. album genome and transcriptome data, 64 SaWRKY genes were identified in this study. A phylogenetic analysis based on the structures of WRKY protein sequences divided these genes into three major groups (I, II, III) together with WRKY protein sequences from Arabidopsis. Tissue-specific expression patterns showed that 37 SaWRKY genes were expressed in at least one of five tissues (leaves, roots, heartwood, sapwood, or the transition zone), while the remaining four genes weakly expressed in all of these tissues. Analysis of the expression profiles of the 42 SaWRKY genes after callus was initiated by salicylic acid (SA) and methyl jasmonate (MeJA) revealed that 25 and 24 SaWRKY genes, respectively, were significantly induced. The function of SaWRKY1, which was significantly up-regulated by SA and MeJA, was analyzed. SaWRKY1 was localized in the nucleus and its overexpression improved salt tolerance in transgenic Arabidopsis. Our study provides important information to further identify the functions of SaWRKY genes and to understand the roles of SaWRKY family genes involved in the development and in SA- and MeJA-mediated stress responses.

scholarly journals Genome- wide characterization, expression profile analysis of WRKY family genes in Santalum album  and functional identification of their role in abiotic stress

2019 ◽  
Author(s):  
Haifeng Yan ◽  
Mingzhi Li ◽  
Yuping Xiong ◽  
Yueya Zhang ◽  
Hanzhi Liang ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Expression Profiles ◽  
Expression Patterns ◽  
Protein Sequences ◽  
Santalum Album ◽  
Biotic And Abiotic Stress ◽  
Functional Identification ◽  
Wrky Protein

Abstract Background: WRKY proteins are a large superfamily of transcription factors that are involved in diverse biological processes including development, as well as biotic and abiotic stress responses in plants. WRKY family proteins have been extensively characterized and analyzed in many plant species, including Arabidopsis , rice and poplar. However, knowledge on WRKY transcription factors in S antalum album is scarce. Results: Based on S . albu m genome and transcriptome data, 64 SaWRKY genes were identified in this study. A phylogenetic analysis based on the structures of WRKY protein sequences divided these genes into three major groups (I, II, III) together with WRKY protein sequences from Arabidopsis . Tissue-specific expression patterns showed that 37 SaWRKY genes were expressed in at least one of five tissues (leaves, roots, heartwood, sapwood, or the transition zone) while the remaining four genes were weakly expressed in all of these tissues. Analysis of the expression profiles of the 42 SaWRKY genes after callus was stimulated by salicylic acid (SA) and methyl jasmonate (MeJA) revealed that 34 and 19 SaWRKY genes, respectively were significantly induced. The function of SaWRKY1 , which was significantly up-regulated by SA and MeJA, was analyzed. SaWRKY1 was localized in the nucleus and its overexpression improved salt tolerance in transgenic Arabidopsis . Conclusions: Our study provides important information to further identify the functions of SaWRKY genes and to understand the roles of SaWRKY family genes involved in development and in SA- and MeJA-mediated stress responses.

scholarly journals Expression Analyses of Soybean VOZ Transcription Factors and the Role of GmVOZ1G in Drought and Salt Stress Tolerance

2020 ◽  
Vol 21 (6) ◽  
pp. 2177 ◽  
Author(s):  
Bo Li ◽  
Jia-Cheng Zheng ◽  
Ting-Ting Wang ◽  
Dong-Hong Min ◽  
Wen-Liang Wei ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Transcription Factors ◽  
Salt Stress ◽  
Abiotic Stress ◽  
Stress Tolerance ◽  
Zinc Finger ◽  
Hairy Roots ◽  
Yeast Cells ◽  
Salt Stress Tolerance ◽  
Drought And Salt Stress

Vascular plant one-zinc-finger (VOZ) transcription factor, a plant specific one-zinc-finger-type transcriptional activator, is involved in regulating numerous biological processes such as floral induction and development, defense against pathogens, and response to multiple types of abiotic stress. Six VOZ transcription factor-encoding genes (GmVOZs) have been reported to exist in the soybean (Glycine max) genome. In spite of this, little information is currently available regarding GmVOZs. In this study, GmVOZs were cloned and characterized. GmVOZ genes encode proteins possessing transcriptional activation activity in yeast cells. GmVOZ1E, GmVOZ2B, and GmVOZ2D gene products were widely dispersed in the cytosol, while GmVOZ1G was primarily located in the nucleus. GmVOZs displayed a differential expression profile under dehydration, salt, and salicylic acid (SA) stress conditions. Among them, GmVOZ1G showed a significantly induced expression in response to all stress treatments. Overexpression of GmVOZ1G in soybean hairy roots resulted in a greater tolerance to drought and salt stress. In contrast, RNA interference (RNAi) soybean hairy roots suppressing GmVOZ1G were more sensitive to both of these stresses. Under drought treatment, soybean composite plants with an overexpression of hairy roots had higher relative water content (RWC). In response to drought and salt stress, lower malondialdehyde (MDA) accumulation and higher peroxidase (POD) and superoxide dismutase (SOD) activities were observed in soybean composite seedlings with an overexpression of hairy roots. The opposite results for each physiological parameter were obtained in RNAi lines. In conclusion, GmVOZ1G positively regulates drought and salt stress tolerance in soybean hairy roots. Our results will be valuable for the functional characterization of soybean VOZ transcription factors under abiotic stress.

scholarly journals Genome-wide and expression analysis of B-box gene family in pepper

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Jing Ma ◽  
Jia-xi Dai ◽  
Xiao-wei Liu ◽  
Duo Lin
Keyword(s):  
Transcription Factors ◽  
Abiotic Stress ◽  
Developmental Stages ◽  
Expression Profiles ◽  
Expression Patterns ◽  
Transient Expression Assay ◽  
Specific Expression ◽  
Tissue Specific ◽  
Duplication Events ◽  
Onion Inner Epidermis

Abstract Background BBX transcription factors are a kind of zinc finger transcription factors with one or two B-box domains, which partilant in plant growth, development and response to abiotic or biotic stress. The BBX family has been identified in Arabidopsis, rice, tomato and some other model plant genomes. Results Here, 24 CaBBX genes were identified in pepper (Capsicum annuum L.), and the phylogenic analysis, structures, chromosomal location, gene expression patterns and subcellular localizations were also carried out to understand the evolution and function of CaBBX genes. All these CaBBXs were divided into five classes, and 20 of them distributed in 11 of 12 pepper chromosomes unevenly. Most duplication events occurred in subgroup I. Quantitative RT-PCR indicated that several CaBBX genes were induced by abiotic stress and hormones, some had tissue-specific expression profiles or differentially expressed at developmental stages. Most of CaBBX members were predicated to be nucleus-localized in consistent with the transient expression assay by onion inner epidermis of the three tested CaBBX members (CaBBX5, 6 and 20). Conclusion Several CaBBX genes were induced by abiotic stress and exogenous phytohormones, some expressed tissue-specific and variously at different developmental stage. The detected CaBBXs act as nucleus-localized transcription factors. Our data might be a foundation in the identification of CaBBX genes, and a further understanding of their biological function in future studies.

scholarly journals Genome-Wide Analysis of the IQM Gene Family in Rice (Oryza sativa L.)

Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1949
Author(s):  
Tian Fan ◽  
Tianxiao Lv ◽  
Chuping Xie ◽  
Yuping Zhou ◽  
Changen Tian
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Gene Family ◽  
Expression Profiles ◽  
Expression Patterns ◽  
Abiotic Stress Response ◽  
Biotic And Abiotic Stress ◽  
Yeast Two Hybrid ◽  
Iq Motif ◽  
Two Hybrid

Members of the IQM (IQ-Motif Containing) gene family are involved in plant growth and developmental processes, biotic and abiotic stress response. To systematically analyze the IQM gene family and their expression profiles under diverse biotic and abiotic stresses, we identified 8 IQM genes in the rice genome. In the current study, the whole genome identification and characterization of OsIQMs, including the gene and protein structure, genome localization, phylogenetic relationship, gene expression and yeast two-hybrid were performed. Eight IQM genes were classified into three subfamilies (I–III) according to the phylogenetic analysis. Gene structure and protein motif analyses showed that these IQM genes are relatively conserved within each subfamily of rice. The 8 OsIQM genes are distributed on seven out of the twelve chromosomes, with three IQM gene pairs involved in segmental duplication events. The evolutionary patterns analysis revealed that the IQM genes underwent a large-scale event within the last 20 to 9 million years. In addition, quantitative real-time PCR analysis of eight OsIQMs genes displayed different expression patterns at different developmental stages and in different tissues as well as showed that most IQM genes were responsive to PEG, NaCl, jasmonic acid (JA), abscisic acid (ABA) treatment, suggesting their crucial roles in biotic, and abiotic stress response. Additionally, a yeast two-hybrid assay showed that OsIQMs can interact with OsCaMs, and the IQ motif of OsIQMs is required for OsIQMs to combine with OsCaMs. Our results will be valuable to further characterize the important biological functions of rice IQM genes.

scholarly journals The DUBs Family in Populus: Identification, Characterization, Evolution and Expression Patterns

2020 ◽  
Author(s):  
Wenqing Zheng ◽  
Liang Du
Keyword(s):  
Abiotic Stress ◽  
Expression Profiles ◽  
Populus Trichocarpa ◽  
Expression Patterns ◽  
Genome Structure ◽  
Regulatory Elements ◽  
Abiotic Stress Response ◽  
Motif Analysis ◽  
Duplication Events ◽  
The Stability

Abstract Background: The deubiquitinases (DUB) family are a class of enzymes that regulate the stability or reverse the ubiquitination modification of many proteins in the cell, participating in cell cycle regulation, cell division and differentiation, various physiological activities such as DNA damage repair, growth and development, and response to stress. However, little is known about these genes in the woody plants. Results: In the present study, 88 DUB genes were identified in woody model plant Populus trichocarpa, including 44 PtrUBP, 3 PtrUCH, 23 PtrOTU, 4 PtrMJD, and 14 PtrJAMM with similar domains. According to the phylogenetic analysis, the 44 PtrUBP genes were classified into 14 subfamily, three PtrUCHs were classified into two groups, 23 PtrOTUs had six groups, four PtrMJDs had two groups, and 14 PtrJAMMs had six groups. The structure and motif analysis indicated that the same subfamily had similar genome structure and motif distribution characteristics. Ks/Ka analysis showed that the segmental duplication events played a major role in the expansion of Populus DUB genes. Synteny analysis of Populus DUB genes and four other species provided deep perception into the evolutionary traits of DUB genes. Expression profiles derived from transcriptome data exhibited distinct expression patterns of DUB genes in various tissues. Based on the result of promoter cis-regulatory elements analysis, we selected 16 representative PtrUBP genes to test their response to different hormonal treatments. The results showed that most of PtrUBPs were upregulated in the ABA, SA, and MeJA treatments, implying that their potential roles in abiotic stress response in Populus. Conclusion: The results in this study broaden our understanding of the DUB gene family in plants, and the analysis of the structure, conserved elements, and expression patterns of the DUBs provide a solid foundation for exploring their specific functions in Populus as well as indicate potential role of PtrUBP gene in abiotic stress.

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