scholarly journals Genome-wide investigation of the GRAS transcription factor family in foxtail millet (Setaria italica L.)

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yu Fan ◽  
Xiaobao Wei ◽  
Dili Lai ◽  
Hao Yang ◽  
Liang Feng ◽  
...  
Keyword(s):  
Gene Family ◽  
Stress Responses ◽  
Quantitative Polymerase Chain Reaction ◽  
Foxtail Millet ◽  
Fruit Weight ◽  
Segmental Duplications ◽  
Biotic And Abiotic Stress ◽  
Chromosomal Distribution ◽  
Phylogenetic Tree Analysis ◽  
Systematic Analysis

Abstract Background GRAS transcription factors perform indispensable functions in various biological processes, such as plant growth, fruit development, and biotic and abiotic stress responses. The development of whole-genome sequencing has allowed the GRAS gene family to be identified and characterized in many species. However, thorough in-depth identification or systematic analysis of GRAS family genes in foxtail millet has not been conducted. Results In this study, 57 GRAS genes of foxtail millet (SiGRASs) were identified and renamed according to the chromosomal distribution of the SiGRAS genes. Based on the number of conserved domains and gene structure, the SiGRAS genes were divided into 13 subfamilies via phylogenetic tree analysis. The GRAS genes were unevenly distributed on nine chromosomes, and members of the same subfamily had similar gene structures and motif compositions. Genetic structure analysis showed that most SiGRAS genes lacked introns. Some SiGRAS genes were derived from gene duplication events, and segmental duplications may have contributed more to GRAS gene family expansion than tandem duplications. Quantitative polymerase chain reaction showed significant differences in the expression of SiGRAS genes in different tissues and stages of fruits development, which indicated the complexity of the physiological functions of SiGRAS. In addition, exogenous paclobutrazol treatment significantly altered the transcription levels of DELLA subfamily members, downregulated the gibberellin content, and decreased the plant height of foxtail millet, while it increased the fruit weight. In addition, SiGRAS13 and SiGRAS25 may have the potential for genetic improvement and functional gene research in foxtail millet. Conclusions Collectively, this study will be helpful for further analysing the biological function of SiGRAS. Our results may contribute to improving the genetic breeding of foxtail millet.

scholarly journals Genome-wide identification of RING finger genes in flax (Linum usitatissimum) and analyses of their evolution

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12491
Author(s):  
Xianwen Meng ◽  
Jing Liu ◽  
Mingde Zhao
Keyword(s):  
Gene Family ◽  
Stress Responses ◽  
Linum Usitatissimum ◽  
Ring Finger ◽  
Synonymous Substitution ◽  
Segmental Duplications ◽  
Biotic And Abiotic Stress ◽  
Gene Pairs ◽  
Genome Wide ◽  
Substitution Ratio

Background Flax (Linum usitatissimum) is an important crop for its seed oil and stem fiber. Really Interesting New Gene (RING) finger genes play essential roles in growth, development, and biotic and abiotic stress responses in plants. However, little is known about these genes in flax. Methods Here, we performed a systematic genome-wide analysis to identify RING finger genes in flax. Results We identified 587 RING domains in 574 proteins and classified them into RING-H2 (292), RING-HCa (181), RING-HCb (23), RING-v (53), RING-C2 (31), RING-D (2), RING-S/T (3), and RING-G (2). These proteins were further divided into 45 groups according to domain organization. These genes were located in 15 chromosomes and clustered into three clades according to their phylogenetic relationships. A total of 312 segmental duplicated gene pairs were inferred from 411 RING finger genes, indicating a major contribution of segmental duplications to the RING finger gene family expansion. The non-synonymous/synonymous substitution ratio of the segmentally duplicated gene pairs was less than 1, suggesting that the gene family was under negative selection since duplication. Further, most RING genes in flax were differentially expressed during seed development or in the shoot apex. This study provides useful information for further functional analysis of RING finger genes in flax and to develop gene-derived molecular markers in flax breeding.

scholarly journals Genome-wide identification, evolution, and expression analysis of the NPR1-like gene family in pears

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12617
Author(s):  
Yarui Wei ◽  
Shuliang Zhao ◽  
Na Liu ◽  
Yuxing Zhang
Keyword(s):  
Gene Family ◽  
Stress Responses ◽  
Systemic Acquired Resistance ◽  
Acquired Resistance ◽  
Signal Transduction Pathway ◽  
Promoter Regions ◽  
Systematic Analysis ◽  
Genome Wide ◽  
Pathogenesis Related ◽  
Genome Level

The NONEXPRESSOR OF PATHOGENESIS-RELATED GENES 1 (NPR1) plays a master regulatory role in the salicylic acid (SA) signal transduction pathway and plant systemic acquired resistance (SAR). Members of the NPR1-like gene family have been reported to the associated with biotic/abiotic stress in many plants, however the genome-wide characterization of NPR1-like genes has not been carried out in Chinese pear (Pyrus bretschneideri Reld). In this study, a systematic analysis was conducted on the characteristics of the NPR1-like genes in P. bretschneideri Reld at the whole-genome level. A total nine NPR1-like genes were detected which eight genes were located on six chromosomes and one gene was mapped to scaffold. Based on the phylogenetic analysis, the nine PbrNPR1-like proteins were divided into three clades (Clades I–III) had similar gene structure, domain and conserved motifs. We sorted the cis-acting elements into three clades, including plant growth and development, stress responses, and hormone responses in the promoter regions of PbrNPR1-like genes. The result of qPCR analysis showed that expression diversity of PbrNPR1-like genes in various tissues. All the genes were up-regulated after SA treatment in leaves except for Pbrgene8896. PbrNPR1-like genes showed circadian rhythm and significantly different expression levels after inoculation with Alternaria alternata. These findings provide a solid insight for understanding the functions and evolution of PbrNPR1-like genes in Chinese pear.

scholarly journals Genome-wide identification and expression analysis of the VQ gene family in Cicer arietinum and Medicago truncatula

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8471 ◽  
Author(s):  
Lei Ling ◽  
Yue Qu ◽  
Jintao Zhu ◽  
Dan Wang ◽  
Changhong Guo
Keyword(s):  
Cicer Arietinum ◽  
Medicago Truncatula ◽  
Stress Responses ◽  
Pcr Analysis ◽  
Biotic And Abiotic Stress ◽  
Systematic Analysis ◽  
Genome Wide ◽  
Specific Proteins ◽  
Solid Foundation ◽  
In Silico Analyses

Valine-glutamine (VQ) proteins are plant-specific proteins that play crucial roles in plant development as well as biotic and abiotic stress responses. VQ genes have been identified in various plants; however, there are no systematic reports in Cicer arietinum or Medicago truncatula. Herein, we identified 19 and 32 VQ genes in C. arietinum and M. truncatula, respectively. A total of these VQ genes were divided into eight groups (I–VIII) based on phylogenetic analysis. Gene structure analyses and motif patterns revealed that these VQ genes might have originated from a common ancestor. In silico analyses demonstrated that these VQ genes were expressed in different tissues. qRT-PCR analysis indicated that the VQ genes were differentially regulated during multiple abiotic stresses. This report presents the first systematic analysis of VQ genes from C. arietinum and M. truncatula and provides a solid foundation for further research of the specific functions of VQ proteins.

scholarly journals Identification and Expression Analysis of the NAC Gene Family in Coffea canephora

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 670 ◽  
Author(s):  
Dong ◽  
Jiang ◽  
Yang ◽  
Xiao ◽  
Bai ◽  
...  
Keyword(s):  
Cold Stress ◽  
Gene Family ◽  
Stress Responses ◽  
Developmental Stages ◽  
Expression Patterns ◽  
Coffea Canephora ◽  
Coffee Bean ◽  
Systematic Analysis ◽  
Nac Gene Family ◽  
Basic Features

The NAC gene family is one of the largest families of transcriptional regulators in plants, and it plays important roles in the regulation of growth and development as well as in stress responses. Genome-wide analyses have been performed in diverse plant species, but there is still no systematic analysis of the NAC genes of Coffea canephora Pierre ex A. Froehner. In this study, we identified 63 NAC genes from the genome of C. canephora. The basic features and comparison analysis indicated that the NAC gene members increased via duplication events during the evolution of the plant. Phylogenetic analysis divided the NAC proteins from C. canephora, Arabidopsis and rice into 16 subgroups. Analysis of the expression patterns of CocNACs under cold stress and coffee bean development indicated that 38 CocNACs were differentially expressed under cold stress; six genes may play important roles in the process of cold acclimation, and four genes among 54 CocNACs showing a variety of expression patterns during different developmental stages of coffee beans may be positively related to the bean development. This study can expand our understanding of the functions of the CocNAC gene family in cold responses and bean development, thereby potentially intensifying the molecular breeding programs of Coffea spp. plants.

scholarly journals Multi-tissue transcriptome analysis of two Begonia species reveals dynamic patterns of evolution in the chalcone synthase gene family

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Katie Emelianova ◽  
Andrea Martínez Martínez ◽  
Lucia Campos-Dominguez ◽  
Catherine Kidner
Keyword(s):  
Gene Duplication ◽  
Gene Family ◽  
Genome Size ◽  
Stress Responses ◽  
Chalcone Synthase ◽  
Expression Profiles ◽  
Rna Seq ◽  
Biotic And Abiotic Stress ◽  
Chalcone Synthase Gene ◽  
Study Species

AbstractBegonia is an important horticultural plant group, as well as one of the most speciose Angiosperm genera, with over 2000 described species. Genus wide studies of genome size have shown that Begonia has a highly variable genome size, and analysis of paralog pairs has previously suggested that Begonia underwent a whole genome duplication. We address the contribution of gene duplication to the generation of diversity in Begonia using a multi-tissue RNA-seq approach. We chose to focus on chalcone synthase (CHS), a gene family having been shown to be involved in biotic and abiotic stress responses in other plant species, in particular its importance in maximising the use of variable light levels in tropical plants. We used RNA-seq to sample six tissues across two closely related but ecologically and morphologically divergent species, Begonia conchifolia and B. plebeja, yielding 17,012 and 19,969 annotated unigenes respectively. We identified the chalcone synthase gene family members in our Begonia study species, as well as in Hillebrandia sandwicensis, the monotypic sister genus to Begonia, Cucumis sativus, Arabidopsis thaliana, and Zea mays. Phylogenetic analysis suggested the CHS gene family has high duplicate turnover, all members of CHS identified in Begonia arising recently, after the divergence of Begonia and Cucumis. Expression profiles were similar within orthologous pairs, but we saw high inter-ortholog expression variation. Sequence analysis showed relaxed selective constraints on some ortholog pairs, with substitutions at conserved sites. Evidence of pseudogenisation and species specific duplication indicate that lineage specific differences are already beginning to accumulate since the divergence of our study species. We conclude that there is evidence for a role of gene duplication in generating diversity through sequence and expression divergence in Begonia.

scholarly journals Genome-Wide Identification, Characterization and Expression Analysis of TCP Transcription Factors in Petunia

2020 ◽  
Vol 21 (18) ◽  
pp. 6594
Author(s):  
Shuting Zhang ◽  
Qin Zhou ◽  
Feng Chen ◽  
Lan Wu ◽  
Baojun Liu ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Plant Growth ◽  
Gene Family ◽  
Stress Responses ◽  
Expression Profiles ◽  
Expression Patterns ◽  
Leaf Morphogenesis ◽  
Systematic Analysis ◽  
Genome Wide ◽  
A Genome

The plant-specific TCP transcription factors are well-characterized in both monocots and dicots, which have been implicated in multiple aspects of plant biological processes such as leaf morphogenesis and senescence, lateral branching, flower development and hormone crosstalk. However, no systematic analysis of the petunia TCP gene family has been described. In this work, a total of 66 petunia TCP genes (32 PaTCP genes in P. axillaris and 34 PiTCP genes in P. inflata) were identified. Subsequently, a systematic analysis of 32 PaTCP genes was performed. The phylogenetic analysis combined with structural analysis clearly distinguished the 32 PaTCP proteins into two classes—class Ι and class Ⅱ. Class Ⅱ was further divided into two subclades, namely, the CIN-TCP subclade and the CYC/TB1 subclade. Plenty of cis-acting elements responsible for plant growth and development, phytohormone and/or stress responses were identified in the promoter of PaTCPs. Distinct spatial expression patterns were determined among PaTCP genes, suggesting that these genes may have diverse regulatory roles in plant growth development. Furthermore, differential temporal expression patterns were observed between the large- and small-flowered petunia lines for most PaTCP genes, suggesting that these genes are likely to be related to petal development and/or petal size in petunia. The spatiotemporal expression profiles and promoter analysis of PaTCPs indicated that these genes play important roles in petunia diverse developmental processes that may work via multiple hormone pathways. Moreover, three PaTCP-YFP fusion proteins were detected in nuclei through subcellular localization analysis. This is the first comprehensive analysis of the petunia TCP gene family on a genome-wide scale, which provides the basis for further functional characterization of this gene family in petunia.

scholarly journals Genome-Wide Identification, Structure Characterization, and Expression Profiling of Dof Transcription Factor Gene Family in Wheat (Triticum aestivum L.)

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 294 ◽  
Author(s):  
Zhengwu Fang ◽  
Wenqiang Jiang ◽  
Yiqin He ◽  
Dongfang Ma ◽  
Yike Liu ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Stress Responses ◽  
Growth And Development ◽  
Expression Patterns ◽  
Triticum Aestivum L ◽  
Structure Characterization ◽  
Sequence Length ◽  
Pcr Analysis ◽  
Segmental Duplications ◽  
Biotic And Abiotic Stress

DNA binding with one finger (Dof) proteins are plant-specific transcription factors with crucial roles in plant growth and stress response. Even so, little is known about them in wheat. In this study, 108 wheat Dof (TaDof) genes across 21 chromosomes were detected. Although variable in sequence length, molecular weight, and isoelectric point, all TaDof proteins contained conserved zinc-finger structures and were phylogenetically divided into 7 sub-groups. Exon/intron and motif analyses suggested that TaDof structures and conserved motifs were similar within sub-groups but diverse among sub-groups. Many segmental duplications were identified and Ka/Ks and inter-species synthetic analyses indicated that polyploidization was main reason for increased number of TaDofs. Prediction and experimental confirmation revealed that TaDofs functioned as transcription factors in the nucleus. Expression pattern profiling showed that TaDofs specifically affected growth and development, and biotic and abiotic stress responses. Wheat miRNAs and cis-regulator were predicted as essential players in molding TaDofs expression patterns. qRT-PCR analysis revealed that TaDofs were induced by salt and drought stresses. Customized annotation revealed that TaDofs were widely involved in phytohormone response, defense, growth and development, and metabolism. Our study provided a comprehensive understanding to wheat TaDofs.

scholarly journals Genome-Wide Analysis of Members of the WRKY Gene Family and Their Cold Stress Response in Prunus mume

Genes ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 911 ◽  
Author(s):  
Bao ◽  
Ding ◽  
Cheng ◽  
Wang ◽  
Zhang
Keyword(s):  
Gene Family ◽  
Stress Responses ◽  
Expression Patterns ◽  
Wrky Transcription Factor ◽  
Segmental Duplications ◽  
Wrky Gene ◽  
Prunus Mume ◽  
Spatiotemporal Expression ◽  
Genome Wide ◽  
Transcription Factor Genes

Prunus mume, which is a rosaceous arbor with very high ornamental, edible and medical values, has a distribution that is mainly restricted by low temperature. WRKY transcription factor genes play crucial roles in the growth, development, and stress responses of plants. However, the WRKY gene family has not been characterised in P. mume. There were 58 PmWRKYs identified from genome of P. mume. They were anchored onto eight link groups and categorised into three broad groups. The gene structure and motif composition were reasonably conservative in each group. Investigation of gene duplication indicated that nine and seven PmWRKYs were arranged in tandem and segmental duplications, respectively. PmWRKYs were discriminately expressed in different tissues (i.e., roots, stems, leaves, flowers and fruits) in P. mume. The 17 cold-related candidate genes were selected based on RNA-seq data. Further, to investigate the function of PmWRKYs in low temperatures, the expression patterns under artificial cold treatments were analysed. The results showed that the expression levels of the 12 PmWRKYs genes significantly and 5 genes slightly changed in stems. In particular, the expression level of PmWRKY18 was up-regulated after ABA treatment. In addition, the spatiotemporal expression patterns of 17 PmWRKYs were analysed in winter. These results indicated that 17 PmWRKYs were potential transcription factors regulating cold resistance in P. mume.

scholarly journals Genome-Wide Analysis of Basic Helix-Loop-Helix (bHLH) TFs in Sea Buckthorn (Hippophae rhamnoides)

2020 ◽  
Author(s):  
Songfeng Diao ◽  
Hong Liu ◽  
Zhongrui Lv ◽  
Caiyun He ◽  
Aiguo Duan ◽  
...  
Keyword(s):  
Gene Family ◽  
Stress Responses ◽  
Gene Families ◽  
Sea Buckthorn ◽  
Bhlh Transcription Factor ◽  
Systematic Analysis ◽  
Basic Helix Loop Helix ◽  
Helix Loop Helix ◽  
Genome Wide ◽  
A Genome

Abstract Background The basic helix-loop-helix (bHLH) transcription factor gene family is one of the largest gene families and extensively involved in plant growth, organ development, and stress responses. However, limited studies are available on the gene family in sea buckthorn. Results In this study, we focused on 144 HrbHLH genes, exploring their DNA and protein sequences and physicochemical properties. According to their protein sequence similarities, we classified the genes into 15 groups with specific motif structures. In order to explore their expressions, we performed gene expression profiling using RNA-Seq and identified 108 HrbHLH genes that expressed in five sea buckthorn tissue, including root nodule, root, leaf, stem and fruit. Furthermore, we found 11 increased expressed HrbHLH genes during sea buckthorn fruit development. We validated the expression pattern of HrbHLH genes using reverse transcription quantitative real-time PCR. Conclusions This study lays the foundation for future studies on gene cloning, transgenes, and biological mechanisms. We performed a genome-wide, systematic analysis of bHLH proteins in sea buckthorn. This comprehensive analysis provides a useful resource that enables further investigation of the physiological roles and molecular functions of the HrbHLH TFs.

Sign in / Sign up

Export Citation Format

Share Document