scholarly journals Genome-wide analysis of the polyamine oxidase gene family in wheat (Triticum aestivum L.) reveals involvement in temperature stress response

2020 ◽  
Author(s):  
Fatemeh Gholizadeh ◽  
Ghader Mirzaghaderi

AbstractAmine oxidases (AOs) including copper containing amine oxidases (CuAOs) and FAD-dependent polyamine oxidases (PAOs) are associated with polyamine catabolism in the peroxisome, apoplast and cytoplasm and play an essential role in growth and developmental processes and response to biotic and abiotic stresses. Here, we identified PAO genes in common wheat (Triticum aestivum), T. urartu and Aegilops tauschii and reported the genome organization, evolutionary features and expression profiles of the wheat PAO genes (TaPAO). Expression analysis using publicly available RNASeq data showed that TaPAO genes are expressed redundantly in various tissues and developmental stages. A large percentage of TaPAOs respond significantly to abiotic stresses, especially temperature (i.e. heat and cold stress). Some TaPAOs were also involved in response to other stresses such as powdery mildew, stripe rust and Fusarium infection. Overall, TaPAOs may have various functions in stress tolerances responses, and play vital roles in different tissues and developmental stages. Our results provided a reference for further functional investigation of TaPAO proteins.

2005 ◽  
Vol 6 (1) ◽  
pp. 81-81
Author(s):  
Rosy Raman ◽  
Harsh Raman ◽  
Katie Johnstone ◽  
Chris Lisle ◽  
Alison Smith ◽  
...  

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Haitao Xing ◽  
Yusong Jiang ◽  
Yong Zou ◽  
Xiaoling Long ◽  
Xiaoli Wu ◽  
...  

Abstract Background AP2/ERF transcription factors (TFs) constitute one of the largest TF families in plants, which play crucial roles in plant metabolism, growth, and development as well as biotic and abiotic stresses responses. Although the AP2/ERF family has been thoroughly identified in many plant species and several AP2/ERF TFs have been functionally characterized, little is known about this family in ginger (Zingiber officinale Roscoe), an important affinal drug and diet vegetable. Recent completion of the ginger genome sequencing provides an opportunity to investigate the expression profiles of AP2/ERF genes in ginger on a genome-wide basis. Results A total of 163 AP2/ERF genes were obtained in the Z.officinale genome and renamed according to the chromosomal distribution of the ZoAP2/ERF genes. Phylogenetic analysis divided them into three subfamilies, of which 35 belonged to the AP2 subfamily, 120 to ERF, three to RAV, and five to Sololist, respectively, which is in accordance with the number of conserved domains and gene structure analysis. A total of 10 motifs were detected in ZoAP2/ERF genes, and some of the unique motifs were found to be important for the function of ZoAP2/ERF genes. The chromosomal localization, gene structure, and conserved protein motif analyses, as well as the characterization of gene duplication events provided deep insight into the evolutionary features of these ZoAP2/ERF genes. The expression profiles derived from the RNA-seq data and quantitative reserve transcription (qRT-PCR) analysis of ZoAP2/ERFs during development and responses to abiotic stresses were investigated in ginger. Conclusion A comprehensive analysis of the AP2/ERF gene expression patterns in various tissues by RNA-seq and qRT-PCR showed that they played an important role in the growth and development of ginger, and genes that might regulate rhizome and flower development were preliminary identified. In additionally, the ZoAP2/ERF family genes that responded to abiotic stresses were also identified. This study is the first time to identify the ZoAP2/ERF family, which contributes to research on evolutionary characteristics and better understanding the molecular basis for development and abiotic stress response, as well as further functional characterization of ZoAP2/ERF genes with an aim of ginger crop improvement.


2021 ◽  
Author(s):  
Yongchao Hao ◽  
Ming Hao ◽  
Hongwei Wang

Abstract Background: Bread wheat (Triticum aestivum) is an important and fundamental cereal worldwide. With increasingly severe environmental stress, it is very important to mine stress-resistant genes for wheat breeding. Dehydrin (DHN) genes are primary candidates because they are involved in the response to many stressors. Results: Here, a genome-wide analysis of this gene family was performed on the genomes of wheat and its three relatives. A total of 55 DHN genes in Triticum aestivum, 31 in Triticum dicoccoides, 15 in Triticum urartu, and 16 in Aegilops tauschii were identified. The phylogenetic, synteny, sequence and protein structure analyses showed that the DHN genes were divided into five groups, Genes in the same group share similar conserved motifs, protein structures, and potential functions. The tandem TaDHN genes responded strongly to drought, cold and high salinity stresses, while the non-tandem genes were responded weakly to all stress conditions. Further, multiple DHN proteins cooperation maybe an important way to prevent plants from abiotic stress according to the interaction network analysis. Conclusions: Conserved, duplicated DHN genes may have played an important role in the adaptation of wheat to a variety of conditions, hence, contributing to the distribution of bread wheat as a global staple food. This research illuminates the contributions of DHN genes to abiotic stresses in Triticeae species and offers helpful information for further functional study of DHN genes in these crops.


2021 ◽  
Vol 23 (1) ◽  
pp. 469
Author(s):  
Kai Tong ◽  
Xinyang Wu ◽  
Long He ◽  
Shiyou Qiu ◽  
Shuang Liu ◽  
...  

Hyperosmolality and various other stimuli can trigger an increase in cytoplasmic-free calcium concentration ([Ca2+]cyt). Members of the Arabidopsis thaliana (L.) reduced hyperosmolality-gated calcium-permeable channels (OSCA) gene family are reported to be involved in sensing extracellular changes to trigger hyperosmolality-induced [Ca2+]cyt increases and controlling stomatal closure during immune signaling. Wheat (Triticum aestivum L.) is a very important food crop, but there are few studies of its OSCA gene family members. In this study, 42 OSCA members were identified in the wheat genome, and phylogenetic analysis can divide them into four clades. The members of each clade have similar gene structures, conserved motifs, and domains. TaOSCA genes were predicted to be regulated by cis-acting elements such as STRE, MBS, DRE1, ABRE, etc. Quantitative PCR results showed that they have different expression patterns in different tissues. The expression profiles of 15 selected TaOSCAs were examined after PEG (polyethylene glycol), NaCl, and ABA (abscisic acid) treatment. All 15 TaOSCA members responded to PEG treatment, while TaOSCA12/-39 responded simultaneously to PEG and ABA. This study informs research into the biological function and evolution of TaOSCA and lays the foundation for the breeding and genetic improvement of wheat.


2018 ◽  
Author(s):  
Yongkai Li ◽  
Xiaojie Cheng ◽  
Yaqin Fu ◽  
Qinqin Wu ◽  
Yuli Guo ◽  
...  

Cell walls play an important role in the structure and morphology of plants as well as stress response, including various biotic and abiotic stresses. Although the comprehensive analysis of genes involved in cellulose synthase have been performed in model plants, such as Arabidopsis thaliana and rice, information regarding cellulose synthase-like (Csl) genes in maize is extremely limited. In this study, a total of 56 members of Csl gene family were identified in maize genome, which were classified into six subfamilies. Analysis of gene structure and conserved motif indicated functional similarities among the ZmCsl proteins within the same subfamily. Additionally, the 56 ZmCsl genes were dispersed on 10 chromosomes. The expression patterns of ZmCsl genes in different tissues using the transcriptome data revealed that most of ZmCsl genes had a relatively high expression in root and tassel tissues. Moreover, the expression profiles of ZmCsl genes under drought and re-watering indicated that the expression of ZmCsl genes were mainly responsive to early stage of drought stress. The protein-protein interaction network of ZmCsl genes proposed some potential interacted proteins. The data presented a comprehensive survey of Csl gene family in maize. The detailed description of maize Csl genes will be beneficial to understand their structural, functional, and evolutionary features. Importantly, we have described the differential expression profiles of these members across different tissues and under drought. This information will provide an important foundation for studying the roles of these ZmCsl genes in response to biotic and abiotic stresses.


2020 ◽  
Vol 206 (6) ◽  
pp. 651-664 ◽  
Author(s):  
Thayna Mendanha ◽  
Eva Rosenqvist ◽  
Benita Nordentoft Hyldgaard ◽  
John H. Doonan ◽  
Carl‐Otto Ottosen

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