scholarly journals Genome-Wide Identification of Aluminum-Activated Malate Transporter (ALMT) Gene Family in Rubber Trees (Hevea brasiliensis) Highlights Their Involvement in Aluminum Detoxification

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 142
Author(s):  
Xiaowei Ma ◽  
Feng An ◽  
Lifeng Wang ◽  
Dong Guo ◽  
Guishui Xie ◽  
...  
Keyword(s):  
Hevea Brasiliensis ◽  
Phylogenetic Relationships ◽  
Expression Patterns ◽  
Rubber Tree ◽  
Pcr Analysis ◽  
Cis Elements ◽  
Conserved Motifs ◽  
Gene Structures ◽  
Different Tissues ◽  
Malate Transporter

The rubber tree (Hevea brasiliensis) is a widely cultivated crop in tropical acidic soil that is tolerant to high concentration of aluminum and the aluminum-activated malate transporter (ALMT) plays an important role in plant aluminum detoxification. However, the effects of ALMT on rubber tree aluminum tolerance, growth performance, and latex production are unclear. In this study, 17 HbALMT genes were identified from the genome of rubber trees. The physiological and biochemical characteristics, phylogenetic relationships, gene structures, conserved motifs, cis-elements of promoter, and expression patterns of the identified HbALMT genes were studied. Phylogenetic relationships indicated that these genes were divided into four clusters and genes in the same cluster have similar gene structures and conserved motifs. The promoters of HbALMT genes contain many cis-elements associated with biotic stress and abiotic stress. Quantitative real-time PCR analysis revealed HbALMTs showed various expression patterns in different tissues, indicating the functional diversity of HbALMT genes in different tissues of rubber trees. Transcriptome analysis and qRT-PCR assay showed that most of the HbALMT genes responded to aluminum stress, and among the 17 HbALMTs, HbALMT1, HbALMT2, HbALMT13, and HbALMT15 displayed higher expression levels in roots after two or five days of Al treatments, indicating their potential involvement in aluminum detoxification. Taken together, this study laid a foundation for further understanding the molecular evolution of the ALMT genes and their involvement in rubber tree aluminum adaption.

scholarly journals Genome-wide analysis of BBX gene family in Tartary buckwheat (Fagopyrum tataricum)

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11939
Author(s):  
Jiali Zhao ◽  
Hongyou Li ◽  
Juan Huang ◽  
Taoxiong Shi ◽  
Ziye Meng ◽  
...  
Keyword(s):  
Growth And Development ◽  
Environmental Changes ◽  
Anthocyanin Biosynthesis ◽  
Expression Patterns ◽  
Tartary Buckwheat ◽  
Chromosome 6 ◽  
Fagopyrum Tataricum ◽  
Conserved Motifs ◽  
Genome Wide ◽  
Gene Structures

BBX (B-box), a zinc finger transcription factor with one or two B-box domains, plays an important role in plant photomorphogenesis, growth, and development as well as response to environmental changes. In this study, 28 Tartary buckwheat BBX (FtBBX) genes were identified and screened using a comparison program. Their physicochemical properties, gene structures, conserved motifs, distribution in chromosomal, and phylogeny of the coding proteins, as well as their expression patterns, were analyzed. In addition, multiple collinearity analysis in three monocots and three dicot species illustrated that the BBX proteins identified from monocots clustered separately from those of dicots. Moreover, the expression of 11 candidate BBX genes with probable involvement in the regulation of anthocyanin biosynthesis was analyzed in the sprouts of Tartary buckwheat during light treatment. The results of gene structure analysis showed that all the 28 BBX genes contained B-box domain, three genes lacked introns, and these genes were unevenly distributed on the other seven chromosomes except for chromosome 6. The 28 proteins contained 10 conserved motifs and could be divided into five subfamilies. BBX genes of Tartary buckwheat showed varying expression under different conditions demonstrating that FtBBXs might play important roles in Tartary buckwheat growth and development. This study lays a foundation for further understanding of Tartary buckwheat BBX genes and their functions in growth and development as well as regulation of pigmentation in Tartary buckwheat.

Expression and localization of SWEETs in Populus and the effect of SWEET7 overexpression in secondary growth

2020 ◽  
Author(s):  
Li Zhang ◽  
Lijuan Wang ◽  
Jin Zhang ◽  
Cai Song ◽  
Yu Li ◽  
...  
Keyword(s):  
Populus Trichocarpa ◽  
Sugar Content ◽  
Expression Patterns ◽  
Secondary Growth ◽  
Wood Formation ◽  
Pcr Analysis ◽  
Sugar Transporters ◽  
Real Time Quantitative Pcr ◽  
Physiological Processes ◽  
Gene Structures

Abstract In trees, wood formation needs carbon import from the photosynthetic source tissues. Sugar transporters play important roles in carbohydrate transport into wood-forming cells. SWEETs (Sugars Will Eventually be Exported Transporters) play essential roles in many physiological processes. However, the roles of this family in the growth and development of woody plants have not been systematically investigated. In this study, 27 SWEET genes were identified in the Populus trichocarpa genome. These SWEET genes were classified into four clades based on their phylogenetic relationships, gene structures, conserved motifs, and chromosomal locations. Representative SWEET members from each clade were selected for further studies. The PagSWEETs were localized to plasma membrane, vacuolar, endoplasmic reticulum (ER) or Golgi. Real-time quantitative PCR analysis showed that PagSWEETs have distinct expression patterns in various tissues, and PagSWEET5, 7, 10b, 10c, 15b, 17a, and 17c exhibited high expression levels in stems. PagSWEET7 is localized to the cytoplasmic membrane and specifically expressed in the phloem as detected by histochemical GUS assays. Xylem production and xylem sugar content were greater in developing wood of SWEET7 overexpression (OX) than Wild-type (WT) lines. Collectively, these results provide valuable information for further investigating functions of PagSWEET genes, and identify PagSWEET7 as a candidate gene for using biotechnology to modify the wood formation in poplar.

scholarly journals Genome-Wide Identification of the NHX Gene Family in Punica granatum L. and Their Expressional Patterns under Salt Stress

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 264
Author(s):  
Jianmei Dong ◽  
Cuiyu Liu ◽  
Yuying Wang ◽  
Yujie Zhao ◽  
Dapeng Ge ◽  
...  
Keyword(s):  
Salt Stress ◽  
Gene Family ◽  
Tertiary Structure ◽  
Expression Patterns ◽  
Functional Characterization ◽  
Punica Granatum ◽  
Conserved Motifs ◽  
Cis Acting ◽  
Gene Structures ◽  
Punica Granatum L

Most cultivated lands are suffering from soil salinization, which is a global problem affecting agricultural development and economy. High NaCl concentrations in the soil result in the accumulation of toxic Cl− and Na+ in plants. Na+/H+ antiporter (NHX) can regulate Na+ compartmentalization or efflux to reduce Na+ toxicity. This study aims to identify the NHX genes in pomegranate (Punica granatum L.) from the genome sequences and investigate their expression patterns under different concentrations of NaCl stress. In this study, we used the sequences of PgNHXs to analyze the physicochemical properties, phylogenetic evolution, conserved motifs, gene structures, cis-acting elements, protein tertiary structure and expression pattern. A total of 10 PgNHX genes were identified, and divided into three clades. Conserved motifs and gene structures showed that most of them had an amiloride-binding site (FFI/LY/FLLPPI), except for the members of clade III. There were multiple cis-acting elements involved in abiotic stress in PgNHX genes. Additionally, protein-protein interaction network analysis suggested that PgNHXs might play crucial roles in keeping a balance of Na+ in cells. The qRT-PCR analysis suggested that PgNHXs had tissue-specific expressional patterns under salt stress. Overall, our findings indicated that the PgNHXs could play significant roles in response to salt stress. The theoretical foundation was established in the present study for the further functional characterization of the NHX gene family in pomegranate.

scholarly journals Molecular Characterization, Gene Evolution and Expression Analysis of the F-Box Gene Family in Tomato (Solanum lycopersicum)

Genes ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 417
Author(s):  
Fulei Mo ◽  
Nian Zhang ◽  
Youwen Qiu ◽  
Lingjun Meng ◽  
Mozhen Cheng ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Cold Stress ◽  
Gene Family ◽  
Solanum Lycopersicum ◽  
Expression Analysis ◽  
Gene Evolution ◽  
Expression Patterns ◽  
Pcr Analysis ◽  
Whole Genome ◽  
Cis Elements

F-box genes play an important role in the growth and development of plants, but there are few studies on its role in a plant’s response to abiotic stresses. In order to further study the functions of F-box genes in tomato (Solanum lycopersicum, Sl), a total of 139 F-box genes were identified in the whole genome of tomato using bioinformatics methods, and the basic information, transcript structure, conserved motif, cis-elements, chromosomal location, gene evolution, phylogenetic relationship, expression patterns and the expression under cold stress, drought stress, jasmonic acid (JA) treatment and salicylic acid (SA) treatment were analyzed. The results showed that SlFBX genes were distributed on 12 chromosomes of tomato and were prone to TD (tandem duplication) at the ends of chromosomes. WGD (whole genome duplication), TD, PD (proximal duplication) and TRD (transposed duplication) modes seem play an important role in the expansion and evolution of tomato SlFBX genes. The most recent divergence occurred 1.3042 million years ago, between SlFBX89 and SlFBX103. The cis-elements in SlFBX genes’ promoter regions were mainly responded to phytohormone and abiotic stress. Expression analysis based on transcriptome data and qRT-PCR (Real-time quantitative PCR) analysis of SlFBX genes showed that most SlFBX genes were differentially expressed under abiotic stress. SlFBX24 was significantly up-regulated at 12 h under cold stress. This study reported the SlFBX gene family of tomato for the first time, providing a theoretical basis for the detailed study of SlFBX genes in the future, especially the function of SlFBX genes under abiotic stress.

Functions of the ERF transcription factor family in plants

Botany ◽  
2008 ◽  
Vol 86 (9) ◽  
pp. 969-977 ◽  
Author(s):  
Zhao-Shi Xu ◽  
Ming Chen ◽  
Lian-Cheng Li ◽  
You-Zhi Ma
Keyword(s):  
Stress Responses ◽  
Phylogenetic Relationships ◽  
Biological Functions ◽  
Transcription Factor Family ◽  
Conserved Motifs ◽  
Over Expression ◽  
Wide Range ◽  
Erf Family ◽  
Gene Structures ◽  
Disease Resistances

Ethylene responsive factors (ERFs) play vital regulatory roles in a variety of developmental processes and stress responses in plants. In this study, ERF family genes in a wide range of plant species were classified into 8 clusters and 14 subclusters on the basis of phylogenetic relationships, gene structures, conserved motifs, and biological functions. ERF genes, especially those in Clusters II and VII, can be used as candidates to improve crop-plant resistance because their over-expression enhances multiple disease resistances and improves tolerances to drought, salt, and freezing in transgenic plants. The comprehensive analysis of phylogenetic relationships, conserved motifs, and physiological functions is useful in elucidating the biological roles of ERF family genes in signal transduction, gene regulation, and defense response under stress environments.

scholarly journals Insight into the B3Transcription Factor Superfamily and Expression Profiling of B3 Genes in Axillary Buds after Topping in Tobacco(Nicotiana tabacum L.)

Genes ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 164 ◽  
Author(s):  
Fei Xia ◽  
Tingting Sun ◽  
Shuangjuan Yang ◽  
Xiao Wang ◽  
Jiangtao Chao ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Expression Patterns ◽  
Protein Structures ◽  
Axillary Buds ◽  
Comparative Genome Analysis ◽  
Specific Expression ◽  
Protein Motifs ◽  
Nicotiana Tabacum L ◽  
Gene Structures ◽  
Insight Into

Members of the plant-specific B3 transcription factor superfamily play important roles in various growth and developmental processes in plants. Even though there are many valuable studies on B3 genes in other species, little is known about the B3 superfamily in tobacco. We identified 114 B3 proteins from tobacco using comparative genome analysis. These proteins were classified into four subfamilies based on their phylogenetic relationships, and include the ARF, RAV, LAV, and REM subfamilies. The chromosomal locations, gene structures, conserved protein motifs, and sub-cellular localizations of the tobacco B3 proteins were analyzed. The patterns of exon-intron numbers and arrangement and the protein structures of the tobacco B3 proteins were in general agreement with their phylogenetic relationships. The expression patterns of 114 B3 genes revealed that many B3 genes show tissue-specific expression. The expression levels of B3 genes in axillary buds after topping showed that the REM genes are mainly up-regulated in response to topping, while the ARF genes are down-regulated after topping.

Genome-wide identification and characterization of Gretchen Hagen3 (GH3) family genes in Brassica napus

Genome ◽  
2019 ◽  
Vol 62 (9) ◽  
pp. 597-608 ◽  
Author(s):  
Lijuan Wei ◽  
Bo Yang ◽  
Hongju Jian ◽  
Aoxiang Zhang ◽  
Ruiying Liu ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Expression Patterns ◽  
Gene Families ◽  
Pcr Analysis ◽  
Genome Wide ◽  
Gene Structures ◽  
Identification And Characterization ◽  
Exogenous Iaa

The hormone auxin is involved in many biological processes throughout a plant’s lifecycle. However, genes in the GH3 (Gretchen Hagen3) family, one of the three major auxin-responsive gene families, have not yet been identified in oilseed rape (Brassica napus). In this study, we identified 63 BnaGH3 genes in oilseed rape using homology searches. We analyzed the chromosome locations, gene structures, and phylogenetic relationships of the BnaGH3 genes, as well as the cis-elements in their promoters. Most BnaGH3 genes are located on chromosomes A03, A09, C02, C03, and C09, each with 4–7 members. In addition, we analyzed the expression patterns of BnaGH3 genes in seven tissues by transcriptome sequencing and quantitative RT-PCR analysis of plants under exogenous IAA treatment. The BnaGH3 genes showed different expression patterns in various tissues. BnaA.GH3.2-1 and BnaC.GH3.2-1 were expressed in the seed and seed coat during development and in response to IAA treatment. These results shed light on the possible roles of the GH3 gene family in oilseed rape.

scholarly journals Genomic analysis of SBP gene family in Saccharum spontaneum reveals their association with vegetative and reproductive development

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Yanhui Liu ◽  
Mohammad Aslam ◽  
Li-Ang Yao ◽  
Man Zhang ◽  
Lulu Wang ◽  
...  
Keyword(s):  
Gene Family ◽  
Differential Expression ◽  
Expression Patterns ◽  
Reproductive Development ◽  
Pcr Analysis ◽  
Homologous Gene ◽  
Gene Pairs ◽  
Differential Expression Pattern ◽  
Development Processes ◽  
Different Tissues

Abstract Background SQUAMOSA promoter binding proteins (SBPs) genes encode a family of plant-specific transcription factors involved in various growth and development processes, including flower and fruit development, leaf initiation, phase transition, and embryonic development. The SBP gene family has been identified and characterized in many species, but no systematic analysis of the SBP gene family has been carried out in sugarcane. Results In the present study, a total of 50 sequences for 30 SBP genes were identified by the genome-wide analysis and designated SsSBP1 to SsSBP30 based on their chromosomal distribution. According to the phylogenetic tree, gene structure and motif features, the SsSBP genes were classified into eight groups (I to VIII). By synteny analysis, 27 homologous gene pairs existed in SsSBP genes, and 37 orthologous gene pairs between sugarcane and sorghum were found. Expression analysis in different tissues, including vegetative and reproductive organs, showed differential expression patterns of SsSBP genes, indicating their functional diversity in the various developmental processes. Additionally, 22 SsSBP genes were predicted as the potential targets of miR156. The differential expression pattern of miR156 exhibited a negative correlation of transcription levels between miR156 and the SsSBP gene in different tissues. Conclusions The sugarcane genome possesses 30 SsSBP genes, and they shared similar gene structures and motif features in their subfamily. Based on the transcriptional and qRT-PCR analysis, most SsSBP genes were found to regulate the leaf initial and female reproductive development. The present study comprehensively and systematically analyzed SBP genes in sugarcane and provided a foundation for further studies on the functional characteristics of SsSBP genes during different development processes.

scholarly journals Characterization of the phenylalanine ammonia lyase gene from the rubber tree (Hevea brasiliensis Müll. Arg.) and differential response during Rigidoporus microporus infection

2016 ◽  
Vol 56 (4) ◽  
pp. 380-388 ◽  
Author(s):  
Porntip Sangsil ◽  
Charassri Nualsri ◽  
Natthakorn Woraathasin ◽  
Korakot Nakkanong
Keyword(s):  
Hevea Brasiliensis ◽  
Root Rot ◽  
Phenylalanine Ammonia Lyase ◽  
Expression Patterns ◽  
Rubber Tree ◽  
Selection Criterion ◽  
Post Inoculation ◽  
White Root Rot ◽  
Root Rot Disease ◽  
Rot Disease

AbstractPhenylalanine ammonia lyase (PAL) is a specific branch point enzyme of primary and secondary metabolism. It plays a key role in plant development and defense mechanisms. Phenylalanine ammonia lyase from Hevea brasiliensis (HbPAL) presented a complete open reading frame (ORF) of 2,145 bp with 721 encoded amino acids. The sequence alignment indicated that the amino acid sequence of HbPAL shared a high identity with PAL genes found in other plants. Phylogenetic tree analysis indicated that HbPAL was more closely related to PALs in Manihot esculenta and Jatropha curcas than to those from other plants. Transcription pattern analysis indicated that HbPAL was constitutively expressed in all tissues examined, most highly in young leaves. The HbPAL gene was evaluated by quantitative real-time PCR (qRT-PCR) after infection with Rigidoporus microporus at 0, 12, 24, 48, 72 and 96 hours post inoculation. The expression patterns of the PAL gene differed among the three rubber clones used in the study. The transcription level of the white root rot disease tolerant clone, PB5/51 increased sharply during the latter stages of infection, while it was relatively subdued in the white root rot disease susceptible clones, RRIM600 and BPM24. These results suggest that the HbPAL gene may play a role in the molecular defense response of H. brasiliensis to pathogen attack and could be used as a selection criterion for disease tolerance.

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