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Yang H, Chen C, Han L, Zhang X, Yue M. Genome-Wide Identification and Expression Analysis of the MYB Transcription Factor Family in Salvia nemorosa. Genes (Basel) 2024; 15:110. [PMID: 38254999 PMCID: PMC10815335 DOI: 10.3390/genes15010110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
The MYB transcription factor gene family is among the most extensive superfamilies of transcription factors in plants and is involved in various essential functions, such as plant growth, defense, and pigment formation. Salvia nemorosa is a perennial herb belonging to the Lamiaceae family, and S. nemorosa has various colors and high ornamental value. However, there is little known about its genome-wide MYB gene family and response to flower color formation. In this study, 142 SnMYB genes (MYB genes of S. nemorosa) were totally identified, and phylogenetic relationships, conserved motifs, gene structures, and expression profiles during flower development stages were analyzed. A phylogenetic analysis indicated that MYB proteins in S. nemorosa could be categorized into 24 subgroups, as supported by the conserved motif compositions and gene structures. Furthermore, according to their similarity with AtMYB genes associated with the control of anthocyanin production, ten SnMYB genes related to anthocyanin biosynthesis were speculated and chosen for further qRT-PCR analyses. The results indicated that five SnMYB genes (SnMYB75, SnMYB90, SnMYB6, SnMYB82, and SnMYB12) were expressed significantly differently in flower development stages. In conclusion, our study establishes the groundwork for understanding the anthocyanin biosynthesis of the SnMYB gene family and has the potential to enhance the breeding of S. nemorosa.
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Affiliation(s)
- Huan Yang
- The College of Life Sciences, Northwest University, No. 229 Taibai North Road, Xi’an 710069, China;
| | - Chen Chen
- Xi’an Botanical Garden of Shaanxi Province, Institute of Botany of Shaanxi Province, Shaanxi Engineering Research Centre for Conservation and Utilization of Botanical Resources, No. 17 Cuihua South Road, Xi’an 710061, China; (C.C.); (X.Z.)
| | - Limin Han
- College of Life Sciences and Food Engineering, Shaanxi Normal University, Shenhe Avenue, Xi’an 710100, China;
| | - Xiao Zhang
- Xi’an Botanical Garden of Shaanxi Province, Institute of Botany of Shaanxi Province, Shaanxi Engineering Research Centre for Conservation and Utilization of Botanical Resources, No. 17 Cuihua South Road, Xi’an 710061, China; (C.C.); (X.Z.)
| | - Ming Yue
- The College of Life Sciences, Northwest University, No. 229 Taibai North Road, Xi’an 710069, China;
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2
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Qin S, Wei F, Liang Y, Tang D, Lin Q, Miao J, Wei K. Genome-wide analysis of the R2R3-MYB gene family in Spatholobus suberectus and identification of its function in flavonoid biosynthesis. FRONTIERS IN PLANT SCIENCE 2023; 14:1219019. [PMID: 37670861 PMCID: PMC10476624 DOI: 10.3389/fpls.2023.1219019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/31/2023] [Indexed: 09/07/2023]
Abstract
Spatholobus suberectus Dunn (S. suberectus), a plant species within the Leguminosae family, has a long history of use in traditional medicines. The dried stem of S. suberectus exhibits various pharmacological activities because it contains various flavonoids. Diverse functions in plants are associated with the R2R3-MYB gene family, including the biosynthesis of flavonoids. Nonetheless, its role remains unelucidated in S. suberectus. Therefore, the newly sequenced S. suberectus genome was utilized to conduct a systematic genome-wide analysis of the R2R3-MYB gene family. The resulting data identified 181 R2R3-SsMYB genes in total, which were then categorized by phylogenetic analysis into 35 subgroups. Among the R2R3-SsMYB genes, 174 were mapped to 9 different chromosomes, and 7 genes were not located on any chromosome. Moreover, similarity in terms of exon-intron structures and motifs was exhibited by most genes in the same subgroup. The expansion of the gene family was primarily driven by segmental duplication events, as demonstrated by collinearity analysis. Notably, most of the duplicated genes underwent purifying selection, which was depicted through the Ka/Ks analysis. In this study, 22 R2R3-SsMYB genes were shown to strongly influence the level of flavonoids. The elevated expression level of these genes was depicted in the tissues with flavonoid accumulation in contrast with other tissues through qRT-PCR data. The resulting data elucidate the structural and functional elements of R2R3-SsMYB genes and present genes that could potentially be utilized for enhancing flavonoid biosynthesis in S. suberectus.
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Affiliation(s)
- Shuangshuang Qin
- National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Fan Wei
- National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Ying Liang
- National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Danfeng Tang
- National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Quan Lin
- National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Jianhua Miao
- National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Kunhua Wei
- National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
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3
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Mena E, Reboledo G, Stewart S, Montesano M, Ponce de León I. Comparative analysis of soybean transcriptional profiles reveals defense mechanisms involved in resistance against Diaporthe caulivora. Sci Rep 2023; 13:13061. [PMID: 37567886 PMCID: PMC10421924 DOI: 10.1038/s41598-023-39695-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Soybean stem canker (SSC) caused by the fungal pathogen Diaporthe caulivora is an important disease affecting soybean production worldwide. However, limited information related to the molecular mechanisms underlying soybean resistance to Diaporthe species is available. In the present work, we analyzed the defense responses to D. caulivora in the soybean genotypes Williams and Génesis 5601. The results showed that compared to Williams, Génesis 5601 is more resistant to fungal infection evidenced by significantly smaller lesion length, reduced disease severity and pathogen biomass. Transcriptional profiling was performed in untreated plants and in D. caulivora-inoculated and control-treated tissues at 8 and 48 h post inoculation (hpi). In total, 2.322 and 1.855 genes were differentially expressed in Génesis 5601 and Williams, respectively. Interestingly, Génesis 5601 exhibited a significantly higher number of upregulated genes compared to Williams at 8 hpi, 1.028 versus 434 genes. Resistance to D. caulivora was associated with defense activation through transcriptional reprogramming mediating perception of the pathogen by receptors, biosynthesis of phenylpropanoids, hormone signaling, small heat shock proteins and pathogenesis related (PR) genes. These findings provide novel insights into soybean defense mechanisms leading to host resistance against D. caulivora, and generate a foundation for the development of resistant SSC varieties within soybean breeding programs.
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Affiliation(s)
- Eilyn Mena
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Guillermo Reboledo
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Silvina Stewart
- Programa Nacional de Cultivos de Secano, Instituto Nacional de Investigación Agropecuaria (INIA), La Estanzuela, Colonia, Uruguay
| | - Marcos Montesano
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
- Laboratorio de Fisiología Vegetal, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Inés Ponce de León
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
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4
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Yu Y, Zhang S, Yu Y, Cui N, Yu G, Zhao H, Meng X, Fan H. The pivotal role of MYB transcription factors in plant disease resistance. PLANTA 2023; 258:16. [PMID: 37311886 DOI: 10.1007/s00425-023-04180-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
MAIN CONCLUSION MYB transcription factors are essential for diverse biology processes in plants. This review has focused on the potential molecular actions of MYB transcription factors in plant immunity. Plants possess a variety of molecules to defend against disease. Transcription factors (TFs) serve as gene connections in the regulatory networks controlling plant growth and defense against various stressors. As one of the largest TF families in plants, MYB TFs coordinate molecular players that modulate plant defense resistance. However, the molecular action of MYB TFs in plant disease resistance lacks a systematic analysis and summary. Here, we describe the structure and function of the MYB family in the plant immune response. Functional characterization revealed that MYB TFs often function either as positive or negative modulators towards different biotic stressors. Moreover, the MYB TF resistance mechanisms are diverse. The potential molecular actions of MYB TFs are being analyzed to uncover functions by controlling the expression of resistance genes, lignin/flavonoids/cuticular wax biosynthesis, polysaccharide signaling, hormone defense signaling, and the hypersensitivity response. MYB TFs have a variety of regulatory modes that fulfill pivotal roles in plant immunity. MYB TFs regulate the expression of multiple defense genes and are, therefore, important for increasing plant disease resistance and promoting agricultural production.
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Affiliation(s)
- Yongbo Yu
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Shuo Zhang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Yang Yu
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Na Cui
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Guangchao Yu
- College of Chemistry and Life Sciences, Anshan Normal University, Anshan, China
| | - Hongyan Zhao
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China
| | - Xiangnan Meng
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China.
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang Agricultural University, Shenyang, China.
| | - Haiyan Fan
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, China.
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang Agricultural University, Shenyang, China.
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5
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Bisht A, Saini DK, Kaur B, Batra R, Kaur S, Kaur I, Jindal S, Malik P, Sandhu PK, Kaur A, Gill BS, Wani SH, Kaur B, Mir RR, Sandhu KS, Siddique KHM. Multi-omics assisted breeding for biotic stress resistance in soybean. Mol Biol Rep 2023; 50:3787-3814. [PMID: 36692674 DOI: 10.1007/s11033-023-08260-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 01/09/2023] [Indexed: 01/25/2023]
Abstract
Biotic stress is a critical factor limiting soybean growth and development. Soybean responses to biotic stresses such as insects, nematodes, fungal, bacterial, and viral pathogens are governed by complex regulatory and defense mechanisms. Next-generation sequencing has availed research techniques and strategies in genomics and post-genomics. This review summarizes the available information on marker resources, quantitative trait loci, and marker-trait associations involved in regulating biotic stress responses in soybean. We discuss the differential expression of related genes and proteins reported in different transcriptomics and proteomics studies and the role of signaling pathways and metabolites reported in metabolomic studies. Recent advances in omics technologies offer opportunities to reshape and improve biotic stress resistance in soybean by altering gene regulation and/or other regulatory networks. We suggest using 'integrated omics' to precisely understand how soybean responds to different biotic stresses. We also discuss the potential challenges of integrating multi-omics for the functional analysis of genes and their regulatory networks and the development of biotic stress-resistant cultivars. This review will help direct soybean breeding programs to develop resistance against different biotic stresses.
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Affiliation(s)
- Ashita Bisht
- Department of Plant Breeding and Genetics, Punjab Agricultural University, 141004, Ludhiana, India
- CSK Himachal Pradesh Krishi Vishvavidyalaya, Highland Agricultural Research and Extension Centre, 175142, Kukumseri, Lahaul and Spiti, India
| | - Dinesh Kumar Saini
- Department of Plant Breeding and Genetics, Punjab Agricultural University, 141004, Ludhiana, India.
| | - Baljeet Kaur
- Department of Plant Breeding and Genetics, Punjab Agricultural University, 141004, Ludhiana, India
| | - Ritu Batra
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, 25004, Meerut, India
| | - Sandeep Kaur
- Department of Plant Breeding and Genetics, Punjab Agricultural University, 141004, Ludhiana, India
| | - Ishveen Kaur
- Agriculture, Environmental and Sustainability Sciences, College of sciences, University of Texas Rio Grande Valley, 78539, Edinburg, TX, USA
| | - Suruchi Jindal
- Division of Molecular Biology and Genetic Engineering, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, India
| | - Palvi Malik
- , Gurdev Singh Khush Institute of Genetics, Plant Breeding and Biotechnology, Punjab Agricultural University,, 141004, Ludhiana, India
| | - Pawanjit Kaur Sandhu
- Department of Chemistry, University of British Columbia, V1V 1V7, Okanagan, Kelowna, Canada
| | - Amandeep Kaur
- Division of Molecular Biology and Genetic Engineering, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, India
| | - Balwinder Singh Gill
- Department of Plant Breeding and Genetics, Punjab Agricultural University, 141004, Ludhiana, India
| | - Shabir Hussain Wani
- MRCFC Khudwani, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, Shalimar, India
| | - Balwinder Kaur
- Department of Entomology, UF/IFAS Research and Education Center, 33430, Belle Glade, Florida, USA
| | - Reyazul Rouf Mir
- Division of Genetics and Plant Breeding, Faculty of Agriculture, SKUAST-Kashmir, 193201, India
| | - Karansher Singh Sandhu
- Department of Crop and Soil Sciences, Washington State University, 99163, Pullman, WA, USA.
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, 6001, Perth, WA, Australia.
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6
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A Novel Senescence-Specific Gene ( ZmSAG39) Negatively Regulates Darkness and Drought Responses in Maize. Int J Mol Sci 2022; 23:ijms232415984. [PMID: 36555622 PMCID: PMC9785699 DOI: 10.3390/ijms232415984] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
The papain-like cysteine proteases (PLCPs) is a subfamily of cysteine proteases that plays an important role in leaf senescence, and some of its members are involved in the regulation of plant growth and development under stress. In this study, we cloned a new gene, ZmSAG39, from maize. Expression profile analysis showed that ZmSAG39 was induced by darkness and drought treatments. In addition, the ZmSAG39 overexpression in maize accelerated the senescence of maize leaves under darkness and drought treatments. However, the knockout of ZmSAG39 in maize enhanced the resistance of maize to darkness and drought stresses and reduced the degree of senescence of maize leaves. Under drought stress, compared with WT plants, the knockout lines had a higher seed germination rate, seedling survival rate and chlorophyll content, and lower reactive oxygen species (ROS) level and malondialdehyde (MDA) content. In addition, quantitative real-time PCR (qRT-PCR) analysis showed that ZmSAG39 negatively regulated some stress-related genes but positively regulated senescence-related genes under darkness and drought stress conditions. To summarize, these results indicate that ZmSAG39 is a senescence-related gene and plays a negative role in response to darkness and drought stresses. This study laid a theoretical foundation for the innovation of maize germplasm resources with high quality, high yield and strong stress resistance.
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7
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Silva E, Perez da Graça J, Porto C, Martin do Prado R, Nunes E, Corrêa Marcelino-Guimarães F, Conrado Meyer M, Jorge Pilau E. Untargeted Metabolomics Analysis by UHPLC-MS/MS of Soybean Plant in a Compatible Response to Phakopsora pachyrhizi Infection. Metabolites 2021; 11:metabo11030179. [PMID: 33808519 PMCID: PMC8003322 DOI: 10.3390/metabo11030179] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/10/2021] [Accepted: 02/16/2021] [Indexed: 01/11/2023] Open
Abstract
Phakopsora pachyrhizi is a biotrophic fungus, causer of the disease Asian Soybean Rust, a severe crop disease of soybean and one that demands greater investment from producers. Thus, research efforts to control this disease are still needed. We investigated the expression of metabolites in soybean plants presenting a resistant genotype inoculated with P. pachyrhizi through the untargeted metabolomics approach. The analysis was performed in control and inoculated plants with P. pachyrhizi using UHPLC-MS/MS. Principal component analysis (PCA) and the partial least squares discriminant analysis (PLS-DA), was applied to the data analysis. PCA and PLS-DA resulted in a clear separation and classification of groups between control and inoculated plants. The metabolites were putative classified and identified using the Global Natural Products Social Molecular Networking platform in flavonoids, isoflavonoids, lipids, fatty acyls, terpenes, and carboxylic acids. Flavonoids and isoflavonoids were up-regulation, while terpenes were down-regulated in response to the soybean–P. pachyrhizi interaction. Our data provide insights into the potential role of some metabolites as flavonoids and isoflavonoids in the plant resistance to ASR. This information could result in the development of resistant genotypes of soybean to P. pachyrhizi, and effective and specific products against the pathogen.
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Affiliation(s)
- Evandro Silva
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá 87020-080, PR, Brazil; (E.S.); (C.P.); (R.M.d.P.)
| | - José Perez da Graça
- Brazilian Agricultural Research Corporation Soybean, Carlos João Strass Rd, Londrina 86001-970, PR, Brazil; (J.P.d.G.); (F.C.M.-G.); (M.C.M.)
| | - Carla Porto
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá 87020-080, PR, Brazil; (E.S.); (C.P.); (R.M.d.P.)
- MsBioscience, Quintino Bocaiúva 298, Street, Maringá 87020-160, PR, Brazil
| | - Rodolpho Martin do Prado
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá 87020-080, PR, Brazil; (E.S.); (C.P.); (R.M.d.P.)
| | - Estela Nunes
- Brazilian Agricultural Research Corporation Swine & Poultry, BR-153, Km 110 Rd, Concórdia 89715-899, SC, Brazil;
| | | | - Mauricio Conrado Meyer
- Brazilian Agricultural Research Corporation Soybean, Carlos João Strass Rd, Londrina 86001-970, PR, Brazil; (J.P.d.G.); (F.C.M.-G.); (M.C.M.)
| | - Eduardo Jorge Pilau
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá 87020-080, PR, Brazil; (E.S.); (C.P.); (R.M.d.P.)
- Correspondence:
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8
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Liu J, Wang J, Wang M, Zhao J, Zheng Y, Zhang T, Xue L, Lei J. Genome-Wide Analysis of the R2R3-MYB Gene Family in Fragaria × ananassa and Its Function Identification During Anthocyanins Biosynthesis in Pink-Flowered Strawberry. FRONTIERS IN PLANT SCIENCE 2021; 12:702160. [PMID: 34527006 PMCID: PMC8435842 DOI: 10.3389/fpls.2021.702160] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/29/2021] [Indexed: 05/14/2023]
Abstract
The strawberry (Fragaria × ananassa) is an economically important fruit throughout the world. The large R2R3-MYB gene family participates in a variety of plant functions, including anthocyanin biosynthesis. The present study is the first genome-wide analysis of the MYB gene family in the octoploid strawberry and describes the identification and characterization of the family members using the recently sequenced F. × ananassa genome. Specifically, we aimed to identify the key MYBs involved in petal coloration in the pink-flowered strawberry, which increases its ornamental value. A comprehensive, genome-wide analysis of F. × ananassa R2R3-FaMYBs was performed, investigating gene structures, phylogenic relationships, promoter regions, chromosomal locations, and collinearity. A total of 393 R2R3-FaMYB genes were identified in the F. × ananassa genome and divided into 36 subgroups based on phylogenetic analysis. Most genes with similar functions in the same subgroup exhibited similar exon-intron structures and motif compositions. These R2R3-FaMYBs were unevenly distributed over 28 chromosomes. The expansion of the R2R3-FaMYB gene family in the F. × ananassa genome was found to be caused mainly by segmental duplication. The Ka/Ks analysis indicated that duplicated R2R3-FaMYBs mostly experienced purifying selection and showed limited functional divergence after the duplication events. To elucidate which R2R3-FaMYB genes were associated with anthocyanin biosynthesis in the petals of the pink-flowered strawberry, we compared transcriptional changes in different flower developmental stages using RNA-seq. There were 131 differentially expressed R2R3-FaMYB genes identified in the petals, of which three genes, FaMYB28, FaMYB54, and FaMYB576, appeared likely, based on the phylogenetic analysis, to regulate anthocyanin biosynthesis. The qRT-PCR showed that these three genes were more highly expressed in petals than in other tissues (fruit, leaf, petiole and stolon) and their expressions were higher in red compared to pink and white petals. These results facilitate the clarification on the roles of the R2R3-FaMYB genes in petal coloration in the pink-flowered strawberry. This work provides useful information for further functional analysis on the R2R3-FaMYB gene family in F. × ananassa.
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Affiliation(s)
- Jiaxin Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Jian Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Mingqian Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Jun Zhao
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Yang Zheng
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Tian Zhang
- Genepioneer Biotechnologies Co. Ltd, Nanjing, China
| | - Li Xue
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
- *Correspondence: Li Xue,
| | - Jiajun Lei
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Jiajun Lei,
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9
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Martins D, Araújo SDS, Rubiales D, Vaz Patto MC. Legume Crops and Biotrophic Pathogen Interactions: A Continuous Cross-Talk of a Multilayered Array of Defense Mechanisms. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1460. [PMID: 33137969 PMCID: PMC7692723 DOI: 10.3390/plants9111460] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 12/20/2022]
Abstract
Legume species are recognized for their nutritional benefits and contribution to the sustainability of agricultural systems. However, their production is threatened by biotic constraints with devastating impacts on crop yield. A deep understanding of the molecular and genetic architecture of resistance sources culminating in immunity is critical to assist new biotechnological approaches for plant protection. In this review, the current knowledge regarding the major plant immune system components of grain and forage legumes challenged with obligate airborne biotrophic fungi will be comprehensively evaluated and discussed while identifying future directions of research. To achieve this, we will address the multi-layered defense strategies deployed by legume crops at the biochemical, molecular, and physiological levels, leading to rapid pathogen recognition and carrying the necessary information to sub-cellular components, on-setting a dynamic and organized defense. Emphasis will be given to recent approaches such as the identification of critical components of host decentralized immune response negatively regulated by pathogens while targeting the loss-of-function of susceptibility genes. We conclude that advances in gene expression analysis in both host and pathogen, protocols for effectoromics pipelines, and high-throughput disease phenomics platforms are rapidly leading to a deeper understanding of the intricate host-pathogen interaction, crucial for efficient disease resistance breeding initiatives.
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Affiliation(s)
- Davide Martins
- Instituto de Tecnologia Química e Biologia António Xavier, Universidade Nova de Lisboa, Avenida da República, Estação Agronómica Nacional, 2780-157 Oeiras, Portugal; (S.d.S.A.); (M.C.V.P.)
| | - Susana de Sousa Araújo
- Instituto de Tecnologia Química e Biologia António Xavier, Universidade Nova de Lisboa, Avenida da República, Estação Agronómica Nacional, 2780-157 Oeiras, Portugal; (S.d.S.A.); (M.C.V.P.)
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Rua Nossa Senhora da Conceição, 2, Lagares, 3405-155 Oliveira do Hospital, Portugal
| | - Diego Rubiales
- Instituto de Agricultura Sostenible, Consejo Superior de Investigaciones Científicas, Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain;
| | - Maria Carlota Vaz Patto
- Instituto de Tecnologia Química e Biologia António Xavier, Universidade Nova de Lisboa, Avenida da República, Estação Agronómica Nacional, 2780-157 Oeiras, Portugal; (S.d.S.A.); (M.C.V.P.)
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10
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Silva E, da Graça JP, Porto C, Martin do Prado R, Hoffmann-Campo CB, Meyer MC, de Oliveira Nunes E, Pilau EJ. Unraveling Asian Soybean Rust metabolomics using mass spectrometry and Molecular Networking approach. Sci Rep 2020; 10:138. [PMID: 31924833 PMCID: PMC6954191 DOI: 10.1038/s41598-019-56782-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/13/2019] [Indexed: 02/08/2023] Open
Abstract
Asian Soybean Rust (ASR), caused by the biotrophic fungus Phakopsora pachyrhizi, is a devastating disease with an estimated crop yield loss of up to 90%. Yet, there is a nerf of information on the metabolic response of soybean plants to the pathogen Untargeted metabolomics and Global Natural Products Social Molecular Networking platform approach was used to explore soybean metabolome modulation to P. pachyrhizi infection. Soybean plants susceptible to ASR was inoculated with P. pachyrhizi spore suspension and non-inoculated plants were used as controls. Leaves from both groups were collected 14 days post-inoculation and extracted using different extractor solvent mixtures. The extracts were analyzed on an ultra-high performance liquid chromatography system coupled to high-definition electrospray ionization-mass spectrometry. There was a significant production of defense secondary metabolites (phenylpropanoids, terpenoids and flavonoids) when P. pachyrhizi infected soybean plants, such as putatively identified liquiritigenin, coumestrol, formononetin, pisatin, medicarpin, biochanin A, glyoceollidin I, glyoceollidin II, glyoceollin I, glyoceolidin II, glyoceolidin III, glyoceolidin IV, glyoceolidin VI. Primary metabolites (amino acids, peptides and lipids) also were putatively identified. This is the first report using untargeted metabolomics and GNPS-Molecular Networking approach to explore ASR in soybean plants. Our data provide insights into the potential role of some metabolites in the plant resistance to ASR, which could result in the development of resistant genotypes of soybean to P. pachyrhizi, and effective and specific products against the pathogen.
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Affiliation(s)
- Evandro Silva
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá, PR, 87020-080, Brazil
| | - José Perez da Graça
- Brazilian Agricultural Research Corporation Soybean, Carlos João Strass Rd, Londrina, PR, 86001-970, Brazil
| | - Carla Porto
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá, PR, 87020-080, Brazil
- Master in Science, Technology and Food Safety, Cesumar Institute of Science, Technology and Innovation - ICETI, University Center of Maringá - UNICESUMAR, 1610, Guedner Av, Maringá, PR, 87050-900, Brazil
| | - Rodolpho Martin do Prado
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá, PR, 87020-080, Brazil
- Department of Animal Science, State University of Maringá, 5790, Colombo Av, Maringá, PR, 87020-080, Brazil
| | | | - Mauricio Conrado Meyer
- Brazilian Agricultural Research Corporation Soybean, Carlos João Strass Rd, Londrina, PR, 86001-970, Brazil
| | - Estela de Oliveira Nunes
- Brazilian Agricultural Research Corporation Soybean, Carlos João Strass Rd, Londrina, PR, 86001-970, Brazil
- Brazilian Agricultural Research Corporation Swine and Poultry, BR-153, Km 110 Distrito de Tamanduá, SC, 89715-899, Brazil
| | - Eduardo Jorge Pilau
- Laboratory of Biomolecules and Mass Spectrometry, Department of Chemistry, State University of Maringá, 5790, Colombo Av, Maringá, PR, 87020-080, Brazil.
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Sarkar MAR, Watanabe S, Suzuki A, Hashimoto F, Anai T. Identification of novel MYB transcription factors involved in the isoflavone biosynthetic pathway by using the combination screening system with agroinfiltration and hairy root transformation. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2019; 36:241-251. [PMID: 31983878 PMCID: PMC6978502 DOI: 10.5511/plantbiotechnology.19.1025a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 10/25/2019] [Indexed: 05/20/2023]
Abstract
Soybean isoflavones are functionally important secondary metabolites that are mainly accumulated in seeds. Their biosynthetic processes are regulated coordinately at the transcriptional level; however, screening systems for key transcription factors (TFs) are limited. Here we developed a combination screening system comprising a simple agroinfiltration assay and a robust hairy root transformation assay. First, we screened for candidate MYB TFs that could activate the promoters of the chalcone synthase (CHS) gene GmCHS8 and the isoflavone synthase (IFS) genes GmIFS1 and GmIFS2 in the isoflavone biosynthetic pathway. In the agroinfiltration assay, we co-transformed a LjUbi (Lotus japonicus polyubiquitin gene) promoter-fused MYB gene with target promoter-fused GUS (β-glucuronidase) gene constructs, and identified three genes (GmMYB102, GmMYB280, and GmMYB502) as candidate regulators of isoflavone biosynthesis. We then evaluated the functional regulatory role of identified three MYB genes in isoflavone biosynthesis using hairy roots transformation assay in soybean for the accumulation of isoflavones. Three candidate MYB genes showed an increased accumulation of total isoflavones in hairy root transgenic lines. Accumulation of total isoflavones in the three MYB-overexpressing lines was approximately 2-to 4-folds more than that in the vector control, confirming their possible role to regulate isoflavone biosynthesis. However, the significant accumulation of authentic GmCHS8, GmIFS1, and GmIFS2 transcripts could not be observed except for the GmMYB502-overexpressing line. Therefore, the analysis of isoflavone accumulation in transgenic hairy root was effective for evaluation of transactivation activity of MYB TFs for isoflavone biosynthetic genes. Our results demonstrate a simple and robust system that can potentially identify the function of orphan TFs in diverse plant metabolic pathways.
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Affiliation(s)
- Md. Abdur Rauf Sarkar
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
- Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Science and Technology, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Satoshi Watanabe
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
- Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
| | - Akihiro Suzuki
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
- Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
| | - Fumio Hashimoto
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Toyoaki Anai
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
- Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
- E-mail: Tel & Fax: +81-952-28-8725
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Kankanala P, Nandety RS, Mysore KS. Genomics of Plant Disease Resistance in Legumes. FRONTIERS IN PLANT SCIENCE 2019; 10:1345. [PMID: 31749817 PMCID: PMC6842968 DOI: 10.3389/fpls.2019.01345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/27/2019] [Indexed: 05/15/2023]
Abstract
The constant interactions between plants and pathogens in the environment and the resulting outcomes are of significant importance for agriculture and agricultural scientists. Disease resistance genes in plant cultivars can break down in the field due to the evolution of pathogens under high selection pressure. Thus, the protection of crop plants against pathogens is a continuous arms race. Like any other type of crop plant, legumes are susceptible to many pathogens. The dawn of the genomic era, in which high-throughput and cost-effective genomic tools have become available, has revolutionized our understanding of the complex interactions between legumes and pathogens. Genomic tools have enabled a global view of transcriptome changes during these interactions, from which several key players in both the resistant and susceptible interactions have been identified. This review summarizes some of the large-scale genomic studies that have clarified the host transcriptional changes during interactions between legumes and their plant pathogens while highlighting some of the molecular breeding tools that are available to introgress the traits into breeding programs. These studies provide valuable insights into the molecular basis of different levels of host defenses in resistant and susceptible interactions.
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Liang Y, Jiang Y, Du M, Li B, Chen L, Chen M, Jin D, Wu J. ZmASR3 from the Maize ASR Gene Family Positively Regulates Drought Tolerance in Transgenic Arabidopsis. Int J Mol Sci 2019; 20:E2278. [PMID: 31072025 PMCID: PMC6539908 DOI: 10.3390/ijms20092278] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/04/2019] [Accepted: 05/06/2019] [Indexed: 01/08/2023] Open
Abstract
Abscisic acid (ABA)-, stress-, and ripening-induced (ASR) proteins are reported to be involved in drought stress responses. However, the function of maize ASR genes in enhancing drought tolerance is not known. Here, nine maize ASR members were cloned, and the molecular features of these genes were analyzed. Phenotype results of overexpression of maize ZmASR3 gene in Arabidopsis showed lower malondialdehyde (MDA) levels and higher relative water content (RWC) and proline content than the wild type under drought conditions, demonstrating that ZmASR3 can improve drought tolerance. Further experiments showed that ZmASR3-overexpressing transgenic lines displayed increased stomatal closure and reduced reactive oxygen species (ROS) accumulation by increasing the enzyme activities of superoxide dismutase (SOD) and catalase (CAT) under drought conditions. Moreover, overexpression of ZmASR3 in Arabidopsis increased ABA content and reduced sensitivity to exogenous ABA in both the germination and post-germination stages. In addition, the ROS-related, stress-responsive, and ABA-dependent pathway genes were activated in transgenic lines under drought stress. Taken together, these results suggest that ZmASR3 acts as a positive regulator of drought tolerance in plants.
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Affiliation(s)
- Yani Liang
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Yingli Jiang
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Ming Du
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Baoyan Li
- Institute of Plant Protection, Yantai Academy of Agricultural Sciences, Yantai 265500, China.
| | - Long Chen
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Mingchao Chen
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Demiao Jin
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Jiandong Wu
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
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BplMYB46 from Betula platyphylla Can Form Homodimers and Heterodimers and Is Involved in Salt and Osmotic Stresses. Int J Mol Sci 2019; 20:ijms20051171. [PMID: 30866467 PMCID: PMC6429157 DOI: 10.3390/ijms20051171] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/26/2019] [Accepted: 03/04/2019] [Indexed: 12/21/2022] Open
Abstract
MYB proteins play important roles in the regulation of plant growth, development, and stress responses. Overexpression of BplMYB46 from Betula platyphylla improved plant salt and osmotic tolerances. In the present study, the interaction of eight avian myeloblastosis viral oncogene homolog (MYB) transcription factors with BplMYB46 was investigated using the yeast two-hybrid system, which showed that BplMYB46 could form homodimers and heterodimers with BplMYB6, BplMYB8, BplMYB11, BplMYB12, and BplMYB13. Relative beta-glucuronidase activity and chromatin immunoprecipitation assays showed that the interaction between BplMYB46 and the five MYBs increased the binding of BplMYB46 to the MYBCORE motif. A subcellular localization study showed that these MYBs were all located in the nucleus. Real-time fluorescence quantitative PCR results indicated that the expressions of BplMYB46 and the five MYB genes could be induced by salt and osmotic stress, and the BplMYB46 and BplMYB13 exhibited the most similar expression patterns. BplMYB46 and BplMYB13 co-overexpression in tobacco using transient transformation technology improved tobacco’s tolerance to salt and osmotic stresses compared with overexpressing BplMYB13 or BplMYB46 alone. Taken together, these results demonstrated that BplMYB46 could interact with five other MYBs to form heterodimers that activate the transcription of target genes via an enhanced binding ability to the MYBCORE motif to mediate reactive oxygen species scavenging in response to salt and osmotic stresses.
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Zhou Y, Zhu H, He S, Zhai H, Zhao N, Xing S, Wei Z, Liu Q. A Novel Sweetpotato Transcription Factor Gene IbMYB116 Enhances Drought Tolerance in Transgenic Arabidopsis. FRONTIERS IN PLANT SCIENCE 2019; 10:1025. [PMID: 31475022 PMCID: PMC6704235 DOI: 10.3389/fpls.2019.01025] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 07/22/2019] [Indexed: 05/17/2023]
Abstract
Several members of the MYB transcription factor family have been found to regulate growth, developmental processes, metabolism, and biotic and abiotic stress responses in plants. However, the role of MYB116 in plants is still unclear. In this study, a MYB transcription factor gene IbMYB116 was cloned and characterized from the sweetpotato [Ipomoea batatas (L.) Lam.] line Xushu55-2, a line that is considered to be drought resistant. We show here that IbMYB116 is a nuclear protein and that it possesses a transactivation domain at the C terminus. This gene exhibited a high expression level in the leaf tissues of Xushu55-2 and was strongly induced by PEG6000 and methyl-jasmonate (MeJA). The IbMYB116-overexpressing Arabidopsis plants showed significantly enhanced drought tolerance, increased MeJA content, and a decreased H2O2 level under drought stress. The overexpression of IbMYB116 in Arabidopsis systematically upregulated jasmonic acid (JA) biosynthesis genes and activated the JA signaling pathway as well as reactive oxygen species (ROS)-scavenging system genes under drought stress conditions. The overall results suggest that the IbMYB116 gene might enhance drought tolerance by activating a ROS-scavenging system through the JA signaling pathway in transgenic Arabidopsis. These findings reveal, for the first time, the crucial role of IbMYB116 in the drought tolerance of plants.
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Affiliation(s)
- Yuanyuan Zhou
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
| | - Hong Zhu
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
- College of Agronomy, Qingdao Agricultural University, Qingdao, China
| | - Shaozhen He
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
| | - Hong Zhai
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
| | - Ning Zhao
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
| | - Shihan Xing
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
| | - Zihao Wei
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
| | - Qingchang Liu
- Key Laboratory of Sweetpotato Biology and Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis and Utilization, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China
- *Correspondence: Qingchang Liu,
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Properties analysis of transcription factor gene TasMYB36 from Trichoderma asperellum CBS433.97 and its heterogeneous transfomation to improve antifungal ability of Populus. Sci Rep 2017; 7:12801. [PMID: 28993676 PMCID: PMC5634415 DOI: 10.1038/s41598-017-13120-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 09/19/2017] [Indexed: 01/31/2023] Open
Abstract
The transcription of TasMYB36 in the biocontrol species T. asperellum was upregulated in four different pathogenic fermentation broths, suggesting that TasMYB36 plays an important role in the response to biotic stresses. Seventy-nine MYB transcription factors that were homologous to TasMYB36 from six sequenced Trichoderma genomes were analyzed. They were distributed in fourteen clades in the phylogenetic tree. The 79 MYBs contained 113 DNA binding domains, and their amino acid sequences were conserved and were different to those in plants. The promoters of 79 MYBs contained 1374 cis-regulators related to the stress response, such as GCR1 (17.5%) and GCN4 (15.5%). Subsequently, TasMYB36 was integrated into the genome of Populus davidiana × P. alba var. pyramidalis (PdPap poplar), and after co-culture of the transformants (PdPap-TasMYB36s) with Alternaria alternate, the transcription of genes in the jasmonic acid (JA) and salicylic acid (SA) hormone signaling pathways were upregulated; the POD, SOD and CAT activities were enhanced; and the reactive oxygen content was reduced in PdPap-TasMYB36s. The disease spots area on PdPap-TasMYB36s leaves infected by A. alternate were average 0.63% (PdPap-Con: 24.7%). In summary, TasMYB36 of T. asperellum CBS433.97 is an important defense response gene that upregulates other stress response genes and could improve resistance to biotic stresses.
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Hajiebrahimi A, Owji H, Hemmati S. Genome-wide identification, functional prediction, and evolutionary analysis of the R2R3-MYB superfamily in Brassica napus. Genome 2017; 60:797-814. [PMID: 28732175 DOI: 10.1139/gen-2017-0059] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
R2R3-MYB transcription factors (TFs) have been shown to play important roles in plants, including in development and in various stress conditions. Phylogenetic analysis showed the presence of 249 R2R3-MYB TFs in Brassica napus, called BnaR2R3-MYB TFs, clustered into 38 clades. BnaR2R3-MYB TFs were distributed on 19 chromosomes of B. napus. Sixteen gene clusters were identified. BnaR2R3-MYB TFs were characterized by motif prediction, gene structure analysis, and gene ontology. Evolutionary analysis revealed that BnaR2R3-MYB TFs are mainly formed as a result of whole-genome duplication. Orthologs and paralogs of BnaR2R3-MYB TFs were identified in B. napus, B. rapa, B. oleracea, and Arabidopsis thaliana using synteny-based methods. Purifying selection was pervasive within R2R3-MYB TFs. Kn/Ks values lower than 0.3 indicated that BnaR2R3-MYB TFs are being functionally converged. The role of gene conversion in the formation of BnaR2R3-MYB TFs was significant. Cis-regulatory elements in the upstream regions of BnaR2R3-MYB genes, miRNA targeting BnaR2R3MYB TFs, and post translational modifications were identified. Digital expression data revealed that BnaR2R3-MYB genes were highly expressed in the roots and under high salinity treatment after 24 h. BnaMYB21, BnaMYB141, and BnaMYB148 have been suggested for improving salt-tolerant B. napus. BnaR2R3-MYB genes were mostly up regulated on the 14th day post inoculation with Leptosphaeria biglobosa and L. maculan. BnaMYB150 is a candidate for increased tolerance to Leptospheria in B. napus.
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Affiliation(s)
- Ali Hajiebrahimi
- a Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hajar Owji
- a Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shiva Hemmati
- a Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.,b Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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18
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Fang Q, Jiang T, Xu L, Liu H, Mao H, Wang X, Jiao B, Duan Y, Wang Q, Dong Q, Yang L, Tian G, Zhang C, Zhou Y, Liu X, Wang H, Fan D, Wang B, Luo K. A salt-stress-regulator from the Poplar R2R3 MYB family integrates the regulation of lateral root emergence and ABA signaling to mediate salt stress tolerance in Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 114:100-110. [PMID: 28285084 DOI: 10.1016/j.plaphy.2017.02.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 02/22/2017] [Accepted: 02/22/2017] [Indexed: 05/21/2023]
Abstract
The roles of most MYB transcription factors (TFs) in the poplar remain unclear. Here, we demonstrate that PtrSSR1, a salt-stress-regulator in the Populus trichocarpa R2R3 MYB gene family, mediates the tolerance of transgenic Arabidopsis plants to salt stress. The transcripts of PtrSSR1 could be induced by salt stress rapidly in poplar. Subcellular localization and yeast assays indicated that PtrSSR1 encoded a nuclear protein with transactivation activity. The Arabidopsis transformants overexpressing PtrSSR1 clearly displayed lateral root emergence (LRE) inhibition compared with wild-type (Wt) under normal conditions; while upon NaCl treatment, the transformants showed improved tolerance, and the LRs emerged faster from salt-induced inhibition. A strong correlation could exist between the LRE mediated by PtrSSR1 and abscisic acid (ABA), mainly because the transformants displayed more sensitivity to exogenous ABA during both seed germination and LRE, and had a distinctly increased level of endogenous ABA. Furthermore, several ABA- and salt-related genes, such as NCED3, ABI1 and CBL1, were up-regulated. Thus, our results suggest that elevation in the endogenous ABA content bring alteration of plant LR development, and that the poplar R2R3 MYB TF PtrSSR1 vitally improve salt stress tolerance by integrating the regulation of LRE and ABA signaling in Arabidopsis.
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Affiliation(s)
- Qing Fang
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China; Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China.
| | - Tianzhi Jiang
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Liangxiang Xu
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Hai Liu
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Hui Mao
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Xianqiang Wang
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Bo Jiao
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Yanjiao Duan
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Qiong Wang
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Qiannan Dong
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Li Yang
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Guozheng Tian
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Chi Zhang
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Yifeng Zhou
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Xiaopeng Liu
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Haiyang Wang
- Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities, School of Biological Science and Technology, Enshi 445000, China
| | - Di Fan
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Bangjun Wang
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Keming Luo
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education Chongqing, Institute of Resources Botany, School of Life Sciences, Southwest University, Chongqing 400715, China.
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LI T, SUN J, BI Y. A R2R3 MYB transcription factor from ash positively regulates salt response in tobacco. Turk J Biol 2017. [DOI: 10.3906/biy-1612-31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Langenbach C, Campe R, Beyer SF, Mueller AN, Conrath U. Fighting Asian Soybean Rust. FRONTIERS IN PLANT SCIENCE 2016; 7:797. [PMID: 27375652 PMCID: PMC4894884 DOI: 10.3389/fpls.2016.00797] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 05/22/2016] [Indexed: 05/18/2023]
Abstract
Phakopsora pachyrhizi is a biotrophic fungus provoking SBR disease. SBR poses a major threat to global soybean production. Though several R genes provided soybean immunity to certain P. pachyrhizi races, the pathogen swiftly overcame this resistance. Therefore, fungicides are the only current means to control SBR. However, insensitivity to fungicides is soaring in P. pachyrhizi and, therefore, alternative measures are needed for SBR control. In this article, we discuss the different approaches for fighting SBR and their potential, disadvantages, and advantages over other measures. These encompass conventional breeding for SBR resistance, transgenic approaches, exploitation of transcription factors, secondary metabolites, and antimicrobial peptides, RNAi/HIGS, and biocontrol strategies. It seems that an integrating approach exploiting different measures is likely to provide the best possible means for the effective control of SBR.
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Affiliation(s)
- Caspar Langenbach
- Department of Plant Physiology, RWTH Aachen UniversityAachen, Germany
| | - Ruth Campe
- BASF Plant Science Company GmbHLimburgerhof, Germany
| | | | - André N. Mueller
- Department of Plant Physiology, RWTH Aachen UniversityAachen, Germany
| | - Uwe Conrath
- Department of Plant Physiology, RWTH Aachen UniversityAachen, Germany
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21
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Gao Z, Li Y, Wu G, Li G, Sun H, Deng S, Shen Y, Chen G, Zhang R, Meng C, Zhang X. Transcriptome Analysis in Haematococcus pluvialis: Astaxanthin Induction by Salicylic Acid (SA) and Jasmonic Acid (JA). PLoS One 2015; 10:e0140609. [PMID: 26484871 PMCID: PMC4979887 DOI: 10.1371/journal.pone.0140609] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/27/2015] [Indexed: 11/30/2022] Open
Abstract
Haematococcus pluvialis is an astaxanthin-rich microalga that can increase its astaxanthin production by salicylic acid (SA) or jasmonic acid (JA) induction. The genetic transcriptome details of astaxanthin biosynthesis were analyzed by exposing the algal cells to 25 mg/L of SA and JA for 1, 6 and 24 hours, plus to the control (no stress). Based on the RNA-seq analysis, 56,077 unigenes (51.7%) were identified with functions in response to the hormone stress. The top five identified subcategories were cell, cellular process, intracellular, catalytic activity and cytoplasm, which possessed 5600 (~9.99%), 5302 (~9.45%), 5242 (~9.35%), 4407 (~7.86%) and 4195 (~7.48%) unigenes, respectively. Furthermore, 59 unigenes were identified and assigned to 26 putative transcription factors (TFs), including 12 plant-specific TFs. They were likely associated with astaxanthin biosynthesis in Haematococcus upon SA and JA stress. In comparison, the up-regulation of differential expressed genes occurred much earlier, with higher transcript levels in the JA treatment (about 6 h later) than in the SA treatment (beyond 24 h). These results provide valuable information for directing metabolic engineering efforts to improve astaxanthin biosynthesis in H. pluvialis.
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Affiliation(s)
- Zhengquan Gao
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Yan Li
- College of Marine and Environmental Sciences, James Cook University, Douglas, 4811, Australia
- School of Food and Agriculture Sciences, University of Queensland, St. Lucia, 4072, Australia
| | - Guanxun Wu
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Guoqiang Li
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Haifeng Sun
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Suzhen Deng
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Yicheng Shen
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Guoqiang Chen
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Ruihao Zhang
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
| | - Chunxiao Meng
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, P.R. China
- * E-mail: (CXM); (XWZ)
| | - Xiaowen Zhang
- Yellow Sea Fishery Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, P.R. China
- * E-mail: (CXM); (XWZ)
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22
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Liu H, Yu G, Wei B, Wang Y, Zhang J, Hu Y, Liu Y, Yu G, Zhang H, Huang Y. Identification and Phylogenetic Analysis of a Novel Starch Synthase in Maize. FRONTIERS IN PLANT SCIENCE 2015; 6:1013. [PMID: 26635839 PMCID: PMC4653816 DOI: 10.3389/fpls.2015.01013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/02/2015] [Indexed: 05/02/2023]
Abstract
Starch is an important reserve of carbon and energy in plants, providing the majority of calories in the human diet and animal feed. Its synthesis is orchestrated by several key enzymes, and the amount and structure of starch, affecting crop yield and quality, are determined mainly by starch synthase (SS) activity. To date, five SS isoforms, including SSI-IV and Granule Bound Starch Synthase (GBSS) have been identified and their physiological functions have been well characterized. Here, we report the identification of a new SS isoform in maize, designated SSV. By searching sequenced genomes, SSV has been found in all green plants with conserved sequences and gene structures. Our phylogenetic analysis based on 780 base pairs has suggested that SSIV and SSV resulted from a gene duplication event, which may have occurred before the algae formation. An expression profile analysis of SSV in maize has indicated that ZmSSV is mainly transcribed in the kernel and ear leaf during the grain filling stage, which is partly similar to other SS isoforms. Therefore, it is likely that SSV may play an important role in starch biosynthesis. Subsequent analysis of SSV function may facilitate understanding the mechanism of starch granules formation, number and structure.
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Affiliation(s)
- Hanmei Liu
- College of Life Science, Sichuan Agricultural UniversityYa’an, China
| | - Guiling Yu
- College of Life Science, Sichuan Agricultural UniversityYa’an, China
| | - Bin Wei
- Maize Research Institute, Sichuan Agricultural UniversityChengdu, China
| | - Yongbin Wang
- Maize Research Institute, Sichuan Agricultural UniversityChengdu, China
| | - Junjie Zhang
- College of Life Science, Sichuan Agricultural UniversityYa’an, China
| | - Yufeng Hu
- College of Agronomy, Sichuan Agricultural UniversityChengdu, China
| | - Yinghong Liu
- Maize Research Institute, Sichuan Agricultural UniversityChengdu, China
| | - Guowu Yu
- College of Agronomy, Sichuan Agricultural UniversityChengdu, China
| | - Huaiyu Zhang
- College of Life Science, Sichuan Agricultural UniversityYa’an, China
| | - Yubi Huang
- Maize Research Institute, Sichuan Agricultural UniversityChengdu, China
- College of Agronomy, Sichuan Agricultural UniversityChengdu, China
- *Correspondence: Yubi Huang,
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