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Kumar D, Kirti PB. The genus Arachis: an excellent resource for studies on differential gene expression for stress tolerance. FRONTIERS IN PLANT SCIENCE 2023; 14:1275854. [PMID: 38023864 PMCID: PMC10646159 DOI: 10.3389/fpls.2023.1275854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Peanut Arachis hypogaea is a segmental allotetraploid in the section Arachis of the genus Arachis along with the Section Rhizomataceae. Section Arachis has several diploid species along with Arachis hypogaea and A. monticola. The section Rhizomataceae comprises polyploid species. Several species in the genus are highly tolerant to biotic and abiotic stresses and provide excellent sets of genotypes for studies on differential gene expression. Though there were several studies in this direction, more studies are needed to identify more and more gene combinations. Next generation RNA-seq based differential gene expression study is a powerful tool to identify the genes and regulatory pathways involved in stress tolerance. Transcriptomic and proteomic study of peanut plants under biotic stresses reveals a number of differentially expressed genes such as R genes (NBS-LRR, LRR-RLK, protein kinases, MAP kinases), pathogenesis related proteins (PR1, PR2, PR5, PR10) and defense related genes (defensin, F-box, glutathione S-transferase) that are the most consistently expressed genes throughout the studies reported so far. In most of the studies on biotic stress induction, the differentially expressed genes involved in the process with enriched pathways showed plant-pathogen interactions, phenylpropanoid biosynthesis, defense and signal transduction. Differential gene expression studies in response to abiotic stresses, reported the most commonly expressed genes are transcription factors (MYB, WRKY, NAC, bZIP, bHLH, AP2/ERF), LEA proteins, chitinase, aquaporins, F-box, cytochrome p450 and ROS scavenging enzymes. These differentially expressed genes are in enriched pathways of transcription regulation, starch and sucrose metabolism, signal transduction and biosynthesis of unsaturated fatty acids. These identified differentially expressed genes provide a better understanding of the resistance/tolerance mechanism, and the genes for manipulating biotic and abiotic stress tolerance in peanut and other crop plants. There are a number of differentially expressed genes during biotic and abiotic stresses were successfully characterized in peanut or model plants (tobacco or Arabidopsis) by genetic manipulation to develop stress tolerance plants, which have been detailed out in this review and more concerted studies are needed to identify more and more gene/gene combinations.
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Affiliation(s)
- Dilip Kumar
- Department of Microbial Genetics and Gene Expression, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Pulugurtha Bharadwaja Kirti
- Agri Biotech Foundation, Professor Jayashankar Telangana State (PJTS) Agricultural University, Hyderabad, Telangana, India
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Zhuang Y, Sharif Y, Zeng X, Chen S, Chen H, Zhuang C, Deng Y, Ruan M, Chen S, Weijian Z. Molecular cloning and functional characterization of the promoter of a novel Aspergillus flavus inducible gene ( AhOMT1) from peanut. FRONTIERS IN PLANT SCIENCE 2023; 14:1102181. [PMID: 36844094 PMCID: PMC9947529 DOI: 10.3389/fpls.2023.1102181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
Peanut is an important oil and food legume crop grown in more than one hundred countries, but the yield and quality are often impaired by different pathogens and diseases, especially aflatoxins jeopardizing human health and causing global concerns. For better management of aflatoxin contamination, we report the cloning and characterization of a novel A. flavus inducible promoter of the O-methyltransferase gene (AhOMT1) from peanut. The AhOMT1 gene was identified as the highest inducible gene by A. flavus infection through genome-wide microarray analysis and verified by qRT-PCR analysis. AhOMT1 gene was studied in detail, and its promoter, fussed with the GUS gene, was introduced into Arabidopsis to generate homozygous transgenic lines. Expression of GUS gene was studied in transgenic plants under the infection of A. flavus. The analysis of AhOMT1 gene characterized by in silico assay, RNAseq, and qRT-PCR revealed minute expression in different organs and tissues with trace or no response to low temperature, drought, hormones, Ca2+, and bacterial stresses, but highly induced by A. flavus infection. It contains four exons encoding 297 aa predicted to transfer the methyl group of S-adenosyl-L-methionine (SAM). The promoter contains different cis-elements responsible for its expression characteristics. Functional characterization of AhOMT1P in transgenic Arabidopsis plants demonstrated highly inducible behavior only under A. flavus infection. The transgenic plants did not show GUS expression in any tissue(s) without inoculation of A. flavus spores. However, GUS activity increased significantly after inoculation of A. flavus and maintained a high level of expression after 48 hours of infection. These results provided a novel way for future management of peanut aflatoxins contamination through driving resistance genes in A. flavus inducible manner.
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Affiliation(s)
- Yuhui Zhuang
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yasir Sharif
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xiaohong Zeng
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Suzheng Chen
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hua Chen
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Chunhong Zhuang
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ye Deng
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | | | | | - Zhuang Weijian
- Center of Legume Plant Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
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Wang L, Jian Z, Wang P, Zhao L, Chen K. Combined physiological responses and differential expression of drought-responsive genes preliminarily explain the drought resistance mechanism of Lotus corniculatus. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:46-57. [PMID: 36031596 DOI: 10.1071/fp22051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Lotus corniculatus L. is a perennial high-quality legume forage species but is vulnerable to drought, and water deficit reduces productivity. To understand the drought response mechanism of L. corniculatus , we investigated physiological responses under drought stress and constructed suppression subtractive hybridisation (SSH) cDNA libraries to isolate drought-inducible genes and quantitatively study the expression levels of candidate drought- responsive genes. Genes encoding calmodulin-like protein, mitogen-activated protein kinase, indole-3-acetic acid-induced protein, ser/thr-protein phosphatase homolog-related proteins, and β -galactosidase-related protein with hydrolysis activity were isolated and considered the main factors that explained the resistance of L. corniculatus to drought. Approximately 632 expressed sequence tags (ESTs) were identified and confirmed in the constructed SSH library. The Gene Ontology (GO) analysis revealed that these genes were involved mainly in transcription processes, protein synthesis, material metabolism, catalytic reactions, sugar metabolism, and photosynthesis. The interaction between the functions of these drought-related genes and the physiological responses preliminarily explains the drought resistance mechanisms of L. corniculatus .
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Affiliation(s)
- Leiting Wang
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Zhongling Jian
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Puchang Wang
- Guizhou Institute of Prataculture, Guiyang 550006, China
| | - Lili Zhao
- College of Animal Science, Guizhou University, Guiyang 550025, China; and State Engineering Technology Institute for Karst Rocky Desertification Control, Guiyang 550025, China
| | - Keke Chen
- College of Animal Science, Guizhou University, Guiyang 550025, China
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Cai T, Chen H, Yan L, Zhang C, Deng Y, Wu S, Yang Q, Pan R, Raza A, Chen S, Zhuang W. The root-specific NtR12 promoter-based expression of RIP increased the resistance against bacterial wilt disease in tobacco. Mol Biol Rep 2022; 49:11503-11514. [PMID: 36097128 DOI: 10.1007/s11033-022-07817-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 07/21/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Tobacco is an important economic crop, but the quality and yield have been severely impaired by bacterial wilt disease (BWD) caused by Ralstonia solanacearum. METHODS AND RESULTS Here, we describe a transgenic approach to prevent BWD in tobacco plants. A new root-specific promoter of an NtR12 gene was successfully cloned. The NtR12 promoter drove GUS reporter gene expression to a high level in roots but to less extent in stems, and no significant expression was detected in leaves. The Ribosome-inactivating proteins (RIP) gene from Momordica charantia was also cloned, and its ability to inhibit Ralstonia solanacearum was evaluated using RIP protein produced by the prokaryotic expression system. The RIP gene was constructed downstream of the NtR12 promoter and transformed into the tobacco cultivar "Cuibi No. 1" (CB-1), resulting in many descendants. The resistance against BWD was significantly improved in transgenic tobacco lines expressing NtR12::RIP. CONCLUSION This study confirms that the RIP gene confers resistance to BWD and the NtR12 as a new promoter for its specific expression in root and stem. Our findings pave a novel avenue for transgenic engineering to prevent the harmful impact of diseases and pests in roots and stems.
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Affiliation(s)
- Tiecheng Cai
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hua Chen
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Liming Yan
- School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Chong Zhang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Ye Deng
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Shengxin Wu
- Fujian Province Bureau of Tobacco, Tobacco Agriculture and Scientific Research Institute, Fuzhou, 350001, Fujian, China
| | - Qiang Yang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Ronglong Pan
- Department of Life Science and Institute of Bioinformatics and Structural Biology, College of Life Science, National Tsing Hua University, Hsin Chu, 30013, Taiwan
| | - Ali Raza
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China
| | - Shunhui Chen
- Fujian Province Bureau of Tobacco, Tobacco Agriculture and Scientific Research Institute, Fuzhou, 350001, Fujian, China.
| | - Weijian Zhuang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China. .,State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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Chen H, Yang Q, Fu H, Chen K, Zhao S, Zhang C, Cai T, Wang L, Lu W, Dang H, Gao M, Li H, Yuan X, Varshney RK, Zhuang W. Identification of Key Gene Networks and Deciphering Transcriptional Regulators Associated With Peanut Embryo Abortion Mediated by Calcium Deficiency. FRONTIERS IN PLANT SCIENCE 2022; 13:814015. [PMID: 35386666 PMCID: PMC8978587 DOI: 10.3389/fpls.2022.814015] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Peanut embryo development is easily affected by a variety of nutrient elements in the soil, especially the calcium level. Peanut produces abortive embryos in calcium-deficient soil, but underlying mechanism remains unclear. Thus, identifying key transcriptional regulators and their associated regulatory networks promises to contribute to a better understanding of this process. In this study, cellular biology and gene expression analyses were performed to investigate peanut embryo development with the aim to discern the global architecture of gene regulatory networks underlying peanut embryo abortion under calcium deficiency conditions. The endomembrane systems tended to disintegrate, impairing cell growth and starch, protein and lipid body accumulation, resulting in aborted seeds. RNA-seq analysis showed that the gene expression profile in peanut embryos was significantly changed under calcium deficiency. Further analysis indicated that multiple signal pathways were involved in the peanut embryo abortion. Differential expressed genes (DEGs) related to cytoplasmic free Ca2+ were significantly altered. DEGs in plant hormone signaling pathways tended to be associated with increased IAA and ethylene but with decreased ABA, gibberellin, cytokinin, and brassinosteroid levels. Certain vital genes, including apoptosis-inducing factor, WRKYs and ethylene-responsive transcription factors, were up-regulated, while key regulators of embryo development, such as TCP4, WRI1, FUS3, ABI3, and GLK1 were down-regulated. Weighted gene co-expression network analysis (WGCNA) identified 16 significant modules associated with the plant hormone signaling, MAPK signaling, ubiquitin mediated proteolysis, reserve substance biosynthesis and metabolism pathways to decipher regulatory network. The most significant module was darkolivegreen2 and FUS3 (AH06G23930) had the highest connectivity among this module. Importantly, key transcription factors involved in embryogenesis or ovule development including TCP4, GLK1, ABI3, bHLH115, MYC2, etc., were also present in this module and down regulated under calcium deficiency. This study presents the first global view of the gene regulatory network involved in peanut embryo abortion under calcium deficiency conditions and lays foundation for improving peanut tolerances to calcium deficiency by a targeted manipulation of molecular breeding.
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Affiliation(s)
- Hua Chen
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qiang Yang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Huiwen Fu
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Kun Chen
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shanshan Zhao
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Chong Zhang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tiecheng Cai
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lihui Wang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wenzhi Lu
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hao Dang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Meijia Gao
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Agricultural Biotechnology Center, Center for Crop and Food Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, Australia
| | - Huaqi Li
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Agricultural Biotechnology Center, Center for Crop and Food Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, Australia
| | - Xinyi Yuan
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Rajeev K. Varshney
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Agricultural Biotechnology Center, Center for Crop and Food Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, Australia
| | - Weijian Zhuang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Institute of Oil Crops Research, Research Center for Genetics and Systems Biology of Leguminous Oil Plants, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, China
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Sharif Y, Chen H, Deng Y, Ali N, Khan SA, Zhang C, Xie W, Chen K, Cai T, Yang Q, Zhuang Y, Raza A, Zhuang W. Cloning and Functional Characterization of a Pericarp Abundant Expression Promoter (AhGLP17-1P) From Peanut (Arachis hypogaea L.). Front Genet 2022; 12:821281. [PMID: 35126474 PMCID: PMC8811503 DOI: 10.3389/fgene.2021.821281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/31/2021] [Indexed: 12/11/2022] Open
Abstract
Peanut (Arachis hypogaea L.) is an important oil and food legume crop grown in tropical and subtropical areas of the world. As a geocarpic crop, it is affected by many soil-borne diseases and pathogens. The pericarp, an inedible part of the seed, acts as the first layer of defense against biotic and abiotic stresses. Pericarp promoters could drive the defense-related genes specific expression in pericarp for the defense application. Here, we identified a pericarp-abundant promoter (AhGLP17-1P) through microarray and transcriptome analysis. Besides the core promoter elements, several other important cis-elements were identified using online promoter analysis tools. Semiquantitative and qRT-PCR analyses validated that the AhGLP17-1 gene was specifically expressed only in the pericarp, and no expression was detected in leaves, stem, roots, flowers, gynophore/peg, testa, and embryo in peanut. Transgenic Arabidopsis plants showed strong GUS expression in siliques, while GUS staining was almost absent in remaining tissues, including roots, seedlings, leaf, stem, flowers, cotyledons, embryo, and seed coat confirmed its peanut expressions. Quantitative expression of the GUS gene also supported the GUS staining results. The results strongly suggest that this promoter can drive foreign genes’ expression in a pericarp-abundant manner. This is the first study on the functional characterization of the pericarp-abundant promoters in peanut. The results could provide practical significance to improve the resistance of peanut, and other crops for seed protection uses.
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Affiliation(s)
- Yasir Sharif
- College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Hua Chen
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Ye Deng
- College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Niaz Ali
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Shahid Ali Khan
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Chong Zhang
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Wenping Xie
- College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Kun Chen
- College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Tiecheng Cai
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Qiang Yang
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Yuhui Zhuang
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Ali Raza
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Weijian Zhuang
- College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Center of Legume Crop Genetics and Systems Biology, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- *Correspondence: Weijian Zhuang,
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7
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Khan SA, Chen H, Deng Y, Chen Y, Zhang C, Cai T, Ali N, Mamadou G, Xie D, Guo B, Varshney RK, Zhuang W. High-density SNP map facilitates fine mapping of QTLs and candidate genes discovery for Aspergillus flavus resistance in peanut (Arachis hypogaea). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:2239-2257. [PMID: 32285164 DOI: 10.1007/s00122-020-03594-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
Two novel resistant QTLs mapped and candidate genes identified for Aspergillus flavus resistance in cultivated peanut using SLAF-seq. Aflatoxin contamination in peanuts caused by Aspergillus flavus is a serious food safety issue for human health around the world. Host plant resistance to fungal infection and reduction in aflatoxin are crucial for mitigating this problem. Identification of the resistance-linked markers can be used in marker-assisted breeding for varietal development. Here we report construction of two high-density genetic linkage maps with 1975 SNP loci and 5022 SNP loci, respectively. Two consistent quantitative trait loci (QTL) were identified as qRAF-3-1 and qRAF-14-1, which located on chromosomes A03 and B04, respectively. QTL qRAF-3-1 was mapped within 1.67 cM and had more than 19% phenotypic variance explained (PVE), while qRAF-14-1 was located within 1.34 cM with 5.15% PVE. While comparing with the reference genome, the mapped QTLs, qRAF-3-1 and qRAF-14-1, were located within a physical distance of 1.44 Megabase pair (Mbp) and 2.22 Mbp, harboring 67 and 137 genes, respectively. Among the identified candidate genes, six genes with the same function were found within both QTLs regions. In addition, putative disease resistance RPP13-like protein 1 (RPP13), lipoxygenase (Lox), WRKY transcription factor (WRKY) and cytochrome P450 71B34 genes were also identified. Using microarray analysis, genes responded to A. flavus infection included coding for RPP13, pentatricopeptide repeat-containing-like protein, and Lox which may be possible candidate genes for resistance to A. flavus. The QTLs and candidate genes will further facilitate marker development and validation of genes for deployment in the molecular breeding programs against A. flavus in peanuts.
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Affiliation(s)
- Shahid Ali Khan
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Hua Chen
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Ye Deng
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yuhua Chen
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Chong Zhang
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Tiecheng Cai
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Niaz Ali
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Gandeka Mamadou
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Dongyang Xie
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Baozhu Guo
- Crop Protection and Management Research Unit, USDA-ARS, Tifton, GA, 31793, USA
| | - Rajeev K Varshney
- Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, Telangana, 502324, India
| | - Weijian Zhuang
- Fujian Provincial Key Laboratory of Plant Molecular and Cell Biology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
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Ectopic Expression of AhGLK1b (GOLDEN2-like Transcription Factor) in Arabidopsis Confers Dual Resistance to Fungal and Bacterial Pathogens. Genes (Basel) 2020; 11:genes11030343. [PMID: 32213970 PMCID: PMC7141132 DOI: 10.3390/genes11030343] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/10/2020] [Accepted: 03/17/2020] [Indexed: 11/17/2022] Open
Abstract
GOLDEN2-LIKE (GLK) is a member of the myeloblastosis (MYB) family transcription factor and it plays an important role in the regulation of plastid development and stress tolerance. In this study, a gene named AhGLK1b was identified from a cultivated peanut showing down-regulation in response to low calcium with a complete open reading frame (ORF) of 1212 bp. The AhGLK1b has 99.26% and 96.28% sequence similarities with its orthologs in Arachis ipaensis and A. duranensis, respectively. In the peanut, the AhGLK1b was localized in the nucleus and demonstrated the highest expression in the leaf, followed by the embryo. Furthermore, the expression of AhGLK1b was induced significantly in response to a bacterial pathogen, Ralstonia solanacearum infection. Ectopic expression of AhGLK1b in Arabidopsis showed stronger resistance against important phytopathogenic fungi S. sclerotiorum. It also exhibited high resistance to infection of the bacterial pathogen Pst DC3000. AhGLK1b-expressing Arabidopsis induced defense-related genes including PR10 and Phox/Bem 1 (PBI), which are involved in multiple disease resistance. Taken together, the results suggest that AhGLK1b might be useful in providing dual resistance to fungal and bacterial pathogens as well as tolerance to abiotic stresses.
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Kumar R, Pandey MK, Roychoudhry S, Nayyar H, Kepinski S, Varshney RK. Peg Biology: Deciphering the Molecular Regulations Involved During Peanut Peg Development. FRONTIERS IN PLANT SCIENCE 2019; 10:1289. [PMID: 31681383 PMCID: PMC6813228 DOI: 10.3389/fpls.2019.01289] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/17/2019] [Indexed: 05/07/2023]
Abstract
Peanut or groundnut is one of the most important legume crops with high protein and oil content. The high nutritional qualities of peanut and its multiple usage have made it an indispensable component of our daily life, in both confectionary and therapeutic food industries. Given the socio-economic significance of peanut, understanding its developmental biology is important in providing a molecular framework to support breeding activities. In peanut, the formation and directional growth of a specialized reproductive organ called a peg, or gynophore, is especially relevant in genetic improvement. Several studies have indicated that peanut yield can be improved by improving reproductive traits including peg development. Therefore, we aim to identify unifying principles for the genetic control, underpinning molecular and physiological basis of peg development for devising appropriate strategy for peg improvement. This review discusses the current understanding of the molecular aspects of peanut peg development citing several studies explaining the key mechanisms. Deciphering and integrating recent transcriptomic, proteomic, and miRNA-regulomic studies provide a new perspective for understanding the regulatory events of peg development that participate in pod formation and thus control yield.
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Affiliation(s)
- Rakesh Kumar
- Center of Excellence in Genomics and Systems Biology, International Crops Research, Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Manish K. Pandey
- Center of Excellence in Genomics and Systems Biology, International Crops Research, Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | | | - Harsh Nayyar
- Department of Botany, Panjab University, Chandigarh, India
| | - Stefan Kepinski
- Centre for Plant Sciences, University of Leeds, Leeds, United Kingdom
| | - Rajeev K. Varshney
- Center of Excellence in Genomics and Systems Biology, International Crops Research, Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
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10
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Zhang C, Chen H, Zhuang RR, Chen YT, Deng Y, Cai TC, Wang SY, Liu QZ, Tang RH, Shan SH, Pan RL, Chen LS, Zhuang WJ. Overexpression of the peanut CLAVATA1-like leucine-rich repeat receptor-like kinase AhRLK1 confers increased resistance to bacterial wilt in tobacco. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:5407-5421. [PMID: 31173088 PMCID: PMC6793444 DOI: 10.1093/jxb/erz274] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 05/31/2019] [Indexed: 06/04/2023]
Abstract
Bacterial wilt caused by Ralstonia solanacearum is a devastating disease affecting hundreds of plant species, yet the host factors remain poorly characterized. The leucine-rich repeat receptor-like kinase gene AhRLK1, characterized as CLAVATA1, was found to be up-regulated in peanut upon inoculation with R. solanacearum. The AhRLK1 protein was localized in the plasma membrane and cell wall. qPCR results showed AhRLK1 was induced in a susceptible variety but little changed in a resistant cultivar after inoculated with R. solanacearum. Hormones such as salicylic acid, abscisic acid, methyl jasmonate, and ethephon induced AhRLK1 expression. In contrast, AhRLK1 expression was down-regulated under cold and drought treatments. Transient overexpression of AhRLK1 led to a hypersensitive response (HR) in Nicotiana benthamiana. Furthermore, AhRLK1 overexpression in tobacco significantly increased the resistance to R. solanacearum. Besides, the transcripts of most representative defense responsive genes in HR and hormone signal pathways were significantly increased in the transgenic lines. EDS1 and PAD4 in the R gene signaling pathway were also up-regulated, but NDR1 was down-regulated. Accordingly, AhRLK1 may increase the defense response to R. solanacearum via HR and hormone defense signaling, in particular through the EDS1 pathway of R gene signaling. These results provide a new understanding of the CLAVATA1 function and will contribute to genetic enhancement of peanut.
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Affiliation(s)
- Chong Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hua Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Rui-Rong Zhuang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yu-Ting Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ye Deng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tie-Cheng Cai
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shuai-Yin Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qin-Zheng Liu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Rong-Hua Tang
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Shi-Hua Shan
- Shandong Peanut Research Institute, Qingdao, China
| | - Rong-Long Pan
- Department of Life Science and Institute of Bioinformatics and Structural Biology, College of Life Science, National Tsing Hua University, Hsin Chu, Taiwan
| | - Li-Song Chen
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wei-Jian Zhuang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, China
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11
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Chen H, Yang Q, Chen K, Zhao S, Zhang C, Pan R, Cai T, Deng Y, Wang X, Chen Y, Chu W, Xie W, Zhuang W. Integrated microRNA and transcriptome profiling reveals a miRNA-mediated regulatory network of embryo abortion under calcium deficiency in peanut (Arachis hypogaea L.). BMC Genomics 2019; 20:392. [PMID: 31113378 PMCID: PMC6528327 DOI: 10.1186/s12864-019-5770-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 05/03/2019] [Indexed: 12/14/2022] Open
Abstract
Background Peanut embryo development is a complex process involving a series of gene regulatory pathways and is easily affected by various elements in the soil. Calcium deficiency in the soil induces early embryo abortion in peanut, which provides an opportunity to determine the mechanism underlying this important event. MicroRNA (miRNA)-guided target gene regulation is vital to a wide variety of biological processes. However, whether miRNAs participate in peanut embryo abortion under calcium deficiency has yet to be explored. Results In this study, with the assistance of a recently established platform for genome sequences of wild peanut species, we analyzed small RNAs (sRNAs) in early peanut embryos. A total of 29 known and 132 potential novel miRNAs were discovered in 12 peanut-specific miRNA families. Among the identified miRNAs, 87 were differentially expressed during early embryo development under calcium deficiency and sufficiency conditions, and 117 target genes of the differentially expressed miRNAs were identified. Integrated analysis of miRNAs and transcriptome expression revealed 52 differentially expressed target genes of 20 miRNAs. The expression profiles for some differentially expressed targets by gene chip analysis were consistent with the transcriptome sequencing results. Together, our results demonstrate that seed/embryo development-related genes such as TCP3, AP2, EMB2750, and GRFs; cell division and proliferation-related genes such as HsfB4 and DIVARICATA; plant hormone signaling pathway-related genes such as CYP707A1 and CYP707A3, with which abscisic acid (ABA) is involved; and BR1, with which brassinosteroids (BRs) are involved, were actively modulated by miRNAs during early embryo development. Conclusions Both a number of miRNAs and corresponding target genes likely playing key roles in the regulation of peanut embryo abortion under calcium deficiency were identified. These findings provide for the first time new insights into miRNA-mediated regulatory pathways involved in peanut embryo abortion under calcium deficiency. Electronic supplementary material The online version of this article (10.1186/s12864-019-5770-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hua Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Qiang Yang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Kun Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Shanshan Zhao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Chong Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Ronglong Pan
- Department of Life Science and Institute of Bioinformatics and Structural Biology, College of Life Science, National Tsing Hua University, Hsin Chu, 30013, Taiwan
| | - Tiecheng Cai
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Ye Deng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Xingjun Wang
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan, 250100, People's Republic of China
| | - Yuting Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Wenting Chu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Wenping Xie
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China
| | - Weijian Zhuang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China. .,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China. .,College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, People's Republic of China.
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12
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Deng Y, Chen H, Zhang C, Cai T, Zhang B, Zhou S, Fountain JC, Pan RL, Guo B, Zhuang WJ. Evolution and characterisation of the AhRAF4 NB-ARC gene family induced by Aspergillus flavus inoculation and abiotic stresses in peanut. PLANT BIOLOGY (STUTTGART, GERMANY) 2018; 20:737-750. [PMID: 29603544 DOI: 10.1111/plb.12726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 03/23/2018] [Indexed: 06/08/2023]
Abstract
Aflatoxin contamination in peanut is a serious food safety issue to human health around the world. Finding disease resistance genes is a key strategy for genetic improvement in breeding to deal with this issue. We identified an Aspergillus flavus-induced NBS-LRR gene, AhRAF4, using a microarray-based approach. By comparison of 23 sequences from three species using phytogenetics, protein secondary structure and three-dimensional structural analyses, AhRAF4 was revealed to be derived from Arachis duranensis by recombination, and has newly evolved into a family of several members, characterised by duplications and point mutations. However, the members of the family descended from A. ipaensis were lost following tetraploidisation. AhRAF4 was slightly up-regulated by low temperature, drought, salicylic acid and ethylene, but down-regulated by methyl jasmonate. The distinct responses upon As. flavus inoculation and the differential reactions between resistant and susceptible varieties indicate that AhRAF4 might play a role in defence responses. Temporal and spatial expression and the phenotype of transformed protoplasts suggest that AhRAF4 may also be associated with pericarp development. Because tetraploid cultivated peanuts are vulnerable to many pathogens, an exploration of R-genes may provide an effective method for genetic improvement of peanut cultivars.
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Affiliation(s)
- Y Deng
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - H Chen
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - C Zhang
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - T Cai
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - B Zhang
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - S Zhou
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - J C Fountain
- Department of Plant Pathology, University of Georgia, Tifton, GA, USA
| | - R-L Pan
- Department of Life Science and Institute of Bioinformatics and Structural Biology, College of Life Science, National Tsing Hua University, Hsin Chu, Taiwan, China
| | - B Guo
- Department of Plant Pathology, University of Georgia, Tifton, GA, USA
- Crop Protection and Management Research Unit, US Department of Agriculture, Agricultural Research Service, Tifton, GA, USA
| | - W-J Zhuang
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
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13
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Vishwakarma H, Junaid A, Manjhi J, Singh GP, Gaikwad K, Padaria JC. Heat stress transcripts, differential expression, and profiling of heat stress tolerant gene TaHsp90 in Indian wheat (Triticum aestivum L.) cv C306. PLoS One 2018; 13:e0198293. [PMID: 29939987 PMCID: PMC6016904 DOI: 10.1371/journal.pone.0198293] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/16/2018] [Indexed: 12/18/2022] Open
Abstract
To generate a genetic resource of heat stress responsive genes/ESTs, suppression subtractive hybridization (SSH) library was constructed in a heat and drought stress tolerant Indian bread wheat cultivar C306. Ninety three days old plants during grain filling stage were subjected to heat stress at an elevated temperature of 37°C and 42°C for different time intervals (30 min, 1h, 2h, 4h, and 6h). Two subtractive cDNA libraries were prepared with RNA isolated from leaf samples at 37°C and 42°C heat stress. The ESTs obtained were reconfirmed by reverse northern dot blot hybridization. A total of 175 contigs and 403 singlets were obtained from 1728 ESTs by gene ontology analysis. Differential expression under heat stress was validated for a few selected genes (10) by qRT-PCR. A transcript showing homology to Hsp90 was observed to be upregulated (7.6 fold) under heat stress in cv. C306. CDS of TaHsp90 (Accession no. MF383197) was isolated from cv. C306 and characterized. Heterologous expression of TaHsp90 was validated in E. coli BL21 and confirmed by protein gel blot and MALDI-TOF analysis. Computational based analysis was carried out to understand the molecular functioning of TaHsp90. The heat stress responsive SSH library developed led to identification of a number of heat responsive genes/ESTs, which can be utilized for unravelling the heat tolerance mechanism in wheat. Gene TaHsp90 isolated and characterized in the present study can be utilized for developing heat tolerant transgenic crops.
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Affiliation(s)
| | - Alim Junaid
- National Research Centre on Plant Biotechnology, Pusa campus, New Delhi, India
| | | | | | - Kishor Gaikwad
- National Research Centre on Plant Biotechnology, Pusa campus, New Delhi, India
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14
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Yang S, Li L, Zhang J, Geng Y, Guo F, Wang J, Meng J, Sui N, Wan S, Li X. Transcriptome and Differential Expression Profiling Analysis of the Mechanism of Ca 2+ Regulation in Peanut ( Arachis hypogaea) Pod Development. FRONTIERS IN PLANT SCIENCE 2017; 8:1609. [PMID: 29033956 PMCID: PMC5625282 DOI: 10.3389/fpls.2017.01609] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 09/04/2017] [Indexed: 05/23/2023]
Abstract
Calcium not only serves as a necessary nutrient for plant growth but also acts as a ubiquitous central hub in a large number of signaling pathways. Free Ca2+ deficiency in the soil may cause early embryo abortion, which eventually led to abnormal development of peanut pod during the harvest season. To understand the mechanisms of Ca2+ regulation in pod development, transcriptome analysis of peanut gynophores and pods was performed by comparing the treatments between free Ca2+ sufficiency and free Ca2+ deficiency using Illumina HiSeq™ 2000. 9,903,082,800 nt bases are generated totally. After assembly, the average length of 102,819 unigenes is 999 nt, N50 is 1,782 nt. RNA-seq based gene expression profilings showed a large number of genes at the transcriptional level changed significantly between the aerial pegs and underground swelling pods under free Ca2+ sufficienct or deficiency treatments, respectively. Genes encoding key members of Ca2+ signaling transduction pathway, enzymes for hormone metabolism, cell division and growth, transcriptional factor as well as embryo development were highlighted. This information provides useful information for our further study. The results of digital gene expression (DGE) indicated that exogenous calcium might contribute to the development of peanut pod through its signal transduction pathway, meanwhile, promote the normal transition of the gynophores to the reproductive development.
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Affiliation(s)
- Sha Yang
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Lin Li
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Jialei Zhang
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yun Geng
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Feng Guo
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Jianguo Wang
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Jingjing Meng
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Na Sui
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Shubo Wan
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xinguo Li
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
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15
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Zhang C, Chen H, Cai T, Deng Y, Zhuang R, Zhang N, Zeng Y, Zheng Y, Tang R, Pan R, Zhuang W. Overexpression of a novel peanut NBS-LRR gene AhRRS5 enhances disease resistance to Ralstonia solanacearum in tobacco. PLANT BIOTECHNOLOGY JOURNAL 2017; 15:39-55. [PMID: 27311738 PMCID: PMC5253469 DOI: 10.1111/pbi.12589] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/16/2016] [Accepted: 06/10/2016] [Indexed: 05/20/2023]
Abstract
Bacterial wilt caused by Ralstonia solanacearum is a ruinous soilborne disease affecting more than 450 plant species. Efficient control methods for this disease remain unavailable to date. This study characterized a novel nucleotide-binding site-leucine-rich repeat resistance gene AhRRS5 from peanut, which was up-regulated in both resistant and susceptible peanut cultivars in response to R. solanacearum. The product of AhRRS5 was localized in the nucleus. Furthermore, treatment with phytohormones such as salicylic acid (SA), abscisic acid (ABA), methyl jasmonate (MeJA) and ethephon (ET) increased the transcript level of AhRRS5 with diverse responses between resistant and susceptible peanuts. Abiotic stresses such as drought and cold conditions also changed AhRRS5 expression. Moreover, transient overexpression induced hypersensitive response in Nicotiana benthamiana. Overexpression of AhRRS5 significantly enhanced the resistance of heterogeneous tobacco to R. solanacearum, with diverse resistance levels in different transgenic lines. Several defence-responsive marker genes in hypersensitive response, including SA, JA and ET signals, were considerably up-regulated in the transgenic lines as compared with the wild type inoculated with R. solanacearum. Nonexpressor of pathogenesis-related gene 1 (NPR1) and non-race-specific disease resistance 1 were also up-regulated in response to the pathogen. These results indicate that AhRRS5 participates in the defence response to R. solanacearum through the crosstalk of multiple signalling pathways and the involvement of NPR1 and R gene signals for its resistance. This study may guide the resistance enhancement of peanut and other economic crops to bacterial wilt disease.
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Affiliation(s)
- Chong Zhang
- College of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Hua Chen
- College of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Tiecheng Cai
- College of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Ye Deng
- College of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Ruirong Zhuang
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Ning Zhang
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Yuanhuan Zeng
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
| | - Yixiong Zheng
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
- College of AgronomyZhongkai Agriculture and Engineering CollegeGuangzhouGuangdongChina
| | - Ronghua Tang
- Cash Crops Research InstituteGuangxi Academy of Agricultural SciencesNanningChina
| | - Ronglong Pan
- Department of Life Science and Institute of Bioinformatics and Structural BiologyCollege of Life ScienceNational Tsing Hua UniversityHsinchuTaiwan
| | - Weijian Zhuang
- College of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhouChina
- Fujian Key Laboratory of Crop Molecular and Cell BiologyFujian Agriculture and Forestry UniversityFuzhouFujianChina
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