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Sharma D, Koul A, Bhushan S, Gupta S, Kaul S, Dhar MK. Insights into microRNA-mediated interaction and regulation of metabolites in tomato. PLANT BIOLOGY (STUTTGART, GERMANY) 2023; 25:1142-1153. [PMID: 37681459 DOI: 10.1111/plb.13572] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/23/2023] [Indexed: 09/09/2023]
Abstract
microRNAs direct regulation of various metabolic pathways in plants and animals. miRNAs may be useful in developing novel/elite genotypes, with enhanced metabolites and disease resistance. We examined miRNAs in tomato. In tomato, miRNAs in the carotenoid pathway have not been fully elucidated. We examined the potential role of miRNAs in biosynthesis of carotenoids, transcript profiling of miRNAs and their possible targets (genes and transcription factors) at different development stages of tomato using stem-loop PCR and RT-qPCR. We also identified miRNAs targeting key flavonoid genes, such as chalcone isomerase (CHI), and dihydroflavonol-4-reductase (DFR). Distinct expression profiles of miRNAs and their targets were found in fruits of three tomato accessions, suggesting carotenoid regulation by miRNAs at various stages of fruit development. This was also confirmed using HPLC of the carotenoids. The present study may help in understanding possible regulation of carotenoid biosynthesis. The identified miRNAs can be exploited to enhance biosynthesis of different carotenoids in plants.
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Affiliation(s)
- D Sharma
- Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu, India
| | - A Koul
- Department of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | - S Bhushan
- Department of Botany, Central University of Jammu, Bagla (Rahya Suchani), Samba, Jammu, India
| | - S Gupta
- Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu, India
| | - S Kaul
- Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu, India
| | - M K Dhar
- Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu, India
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2
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Cao K, Sun Y, Zhang X, Zhao Y, Bian J, Zhu H, Wang P, Gao B, Sun X, Hu M, Guo Y, Wang X. The miRNA-mRNA regulatory networks of the response to NaHCO 3 stress in industrial hemp (Cannabis sativa L.). BMC PLANT BIOLOGY 2023; 23:509. [PMID: 37875794 PMCID: PMC10594861 DOI: 10.1186/s12870-023-04463-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 09/14/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND Industrial hemp is an important industrial crop and has strong resistance to saline-alkaline stress. However, research on the industrial hemp response to NaHCO3 stress is limited. Therefore, the response mechanisms of industrial hemp under NaHCO3 stress were analysed through miRNA-mRNA regulatory networks. RESULTS Seedlings of two salt-alkali tolerant and sensitive varieties were cultured in a solution containing 100 mM NaHCO3 and randomly sampled at 0, 6, 12, and 24 h. With prolonged NaHCO3 stress, the seedlings gradually withered, and the contents of jasmonic acid, lignin, trehalose, soluble protein, peroxidase, and superoxide dismutase in the roots increased significantly. The abscisic acid content decreased and then gradually increased. Overall, 18,215 mRNAs and 74 miRNAs were identified as differentially expressed under NaHCO3 stress. The network showed that 230 miRNA-mRNA interactions involved 16 miRNAs and 179 mRNAs, including some key hub novel mRNAs of these crucial pathways. Carbon metabolism, starch, sucrose metabolism, plant hormone signal transduction, and the spliceosome (SPL) were crucial pathways in industrial hemp's response to NaHCO3 stress. CONCLUSIONS It is speculated that industrial hemp can regulate SPL pathway by upregulating miRNAs such as novel_miR_179 and novel_miR_75, thus affecting starch and sucrose metabolism, plant hormone signal transduction and carbon metabolism and improving key physiological indices such as jasmonic acid content, trehalose content, and peroxidase and superoxide dismutase activities under NaHCO3 stress.
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Affiliation(s)
- Kun Cao
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
- Heilongjiang BaYi Agricultural University, Daqing, 163319, Heilongjiang, China
| | - Yufeng Sun
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Xiaoyan Zhang
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Yue Zhao
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Jing Bian
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Hao Zhu
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Pan Wang
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Baochang Gao
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Xiaoli Sun
- Heilongjiang BaYi Agricultural University, Daqing, 163319, Heilongjiang, China
- National Coarse Cereal Engineering Research Center, Daqing, 163319, Heilongjiang, China
- Heilongjaing Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology, Daqing, 163319, Heilongjiang, China
| | - Ming Hu
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China
| | - Yongxia Guo
- Heilongjiang BaYi Agricultural University, Daqing, 163319, Heilongjiang, China.
- National Coarse Cereal Engineering Research Center, Daqing, 163319, Heilongjiang, China.
- Heilongjaing Province Cultivating Collaborative Innovation Center for The Beidahuang Modern Agricultural Industry Technology, Daqing, 163319, Heilongjiang, China.
| | - Xiaonan Wang
- Daqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319, Heilongjiang, China.
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3
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Hazra S, Moulick D, Mukherjee A, Sahib S, Chowardhara B, Majumdar A, Upadhyay MK, Yadav P, Roy P, Santra SC, Mandal S, Nandy S, Dey A. Evaluation of efficacy of non-coding RNA in abiotic stress management of field crops: Current status and future prospective. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 203:107940. [PMID: 37738864 DOI: 10.1016/j.plaphy.2023.107940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/23/2023] [Accepted: 08/04/2023] [Indexed: 09/24/2023]
Abstract
Abiotic stresses are responsible for the major losses in crop yield all over the world. Stresses generate harmful ROS which can impair cellular processes in plants. Therefore, plants have evolved antioxidant systems in defence against the stress-induced damages. The frequency of occurrence of abiotic stressors has increased several-fold due to the climate change experienced in recent times and projected for the future. This had particularly aggravated the risk of yield losses and threatened global food security. Non-coding RNAs are the part of eukaryotic genome that does not code for any proteins. However, they have been recently found to have a crucial role in the responses of plants to both abiotic and biotic stresses. There are different types of ncRNAs, for example, miRNAs and lncRNAs, which have the potential to regulate the expression of stress-related genes at the levels of transcription, post-transcription, and translation of proteins. The lncRNAs are also able to impart their epigenetic effects on the target genes through the alteration of the status of histone modification and organization of the chromatins. The current review attempts to deliver a comprehensive account of the role of ncRNAs in the regulation of plants' abiotic stress responses through ROS homeostasis. The potential applications ncRNAs in amelioration of abiotic stresses in field crops also have been evaluated.
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Affiliation(s)
- Swati Hazra
- Sharda School of Agricultural Sciences, Sharda University, Greater Noida, Uttar Pradesh 201310, India.
| | - Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India.
| | | | - Synudeen Sahib
- S. S. Cottage, Njarackal, P.O.: Perinad, Kollam, 691601, Kerala, India.
| | - Bhaben Chowardhara
- Department of Botany, Faculty of Science and Technology, Arunachal University of Studies, Arunachal Pradesh 792103, India.
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, West Bengal 741246, India.
| | - Munish Kumar Upadhyay
- Department of Civil Engineering, Indian Institute of Technology Kanpur, Uttar Pradesh 208016, India.
| | - Poonam Yadav
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India.
| | - Priyabrata Roy
- Department of Molecular Biology and Biotechnology, University of Kalyani, West Bengal 741235, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal 741235, India.
| | - Sayanti Mandal
- Department of Biotechnology, Dr. D. Y. Patil Arts, Commerce & Science College (affiliated to Savitribai Phule Pune University), Sant Tukaram Nagar, Pimpri, Pune, Maharashtra-411018, India.
| | - Samapika Nandy
- School of Pharmacy, Graphic Era Hill University, Bell Road, Clement Town, Dehradun, 248002, Uttarakhand, India; Department of Botany, Vedanta College, 33A Shiv Krishna Daw Lane, Kolkata-700054, India.
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata, West Bengal 700073, India.
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4
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Liu S, Zenda T, Tian Z, Huang Z. Metabolic pathways engineering for drought or/and heat tolerance in cereals. FRONTIERS IN PLANT SCIENCE 2023; 14:1111875. [PMID: 37810398 PMCID: PMC10557149 DOI: 10.3389/fpls.2023.1111875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 09/04/2023] [Indexed: 10/10/2023]
Abstract
Drought (D) and heat (H) are the two major abiotic stresses hindering cereal crop growth and productivity, either singly or in combination (D/+H), by imposing various negative impacts on plant physiological and biochemical processes. Consequently, this decreases overall cereal crop production and impacts global food availability and human nutrition. To achieve global food and nutrition security vis-a-vis global climate change, deployment of new strategies for enhancing crop D/+H stress tolerance and higher nutritive value in cereals is imperative. This depends on first gaining a mechanistic understanding of the mechanisms underlying D/+H stress response. Meanwhile, functional genomics has revealed several stress-related genes that have been successfully used in target-gene approach to generate stress-tolerant cultivars and sustain crop productivity over the past decades. However, the fast-changing climate, coupled with the complexity and multigenic nature of D/+H tolerance suggest that single-gene/trait targeting may not suffice in improving such traits. Hence, in this review-cum-perspective, we advance that targeted multiple-gene or metabolic pathway manipulation could represent the most effective approach for improving D/+H stress tolerance. First, we highlight the impact of D/+H stress on cereal crops, and the elaborate plant physiological and molecular responses. We then discuss how key primary metabolism- and secondary metabolism-related metabolic pathways, including carbon metabolism, starch metabolism, phenylpropanoid biosynthesis, γ-aminobutyric acid (GABA) biosynthesis, and phytohormone biosynthesis and signaling can be modified using modern molecular biotechnology approaches such as CRISPR-Cas9 system and synthetic biology (Synbio) to enhance D/+H tolerance in cereal crops. Understandably, several bottlenecks hinder metabolic pathway modification, including those related to feedback regulation, gene functional annotation, complex crosstalk between pathways, and metabolomics data and spatiotemporal gene expressions analyses. Nonetheless, recent advances in molecular biotechnology, genome-editing, single-cell metabolomics, and data annotation and analysis approaches, when integrated, offer unprecedented opportunities for pathway engineering for enhancing crop D/+H stress tolerance and improved yield. Especially, Synbio-based strategies will accelerate the development of climate resilient and nutrient-dense cereals, critical for achieving global food security and combating malnutrition.
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Affiliation(s)
- Songtao Liu
- Hebei Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food, Hebei North University, Zhangjiakou, China
| | - Tinashe Zenda
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, China
| | - Zaimin Tian
- Hebei Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food, Hebei North University, Zhangjiakou, China
| | - Zhihong Huang
- Hebei Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food, Hebei North University, Zhangjiakou, China
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5
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Liu J, Wei L, Feng S. Research progress of non-coding RNAs in vegetable responses to abiotic stresses. Gene 2023:147537. [PMID: 37301448 DOI: 10.1016/j.gene.2023.147537] [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: 05/13/2023] [Revised: 05/25/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023]
Abstract
Vegetable crops play a crucial role in agricultural production, providing essential vitamins and minerals necessary for a healthy diet. Recently, there has been growing interest in cultivating vegetable varieties with outstanding agricultural and economic traits. However, vegetable production is often exposed to various abiotic stresses like soil drought, temperature fluctuations, and heavy metal stress, which can negatively impact yield and quality. While previous research has investigated the physiological responses of vegetable crops to such stressors, less attention has been given to genetic networks. Plants respond to environmental stress mainly by adapting first and then reacting, thereby enhancing their resistance to stress. Typically, different abiotic stresses trigger epigenetic changes, which can regulate non-coding RNAs. Therefore, studying the epigenetic mechanisms of vegetable crop responses to abiotic stress can provide insights into the molecular response mechanisms of plants under stress. This knowledge has practical applications in breeding vegetable crops for resistance. This article summarizes the primary research findings on the regulation of non-coding RNAs and their expression levels in vegetable crops exposed to abiotic stresses to guide molecular breeding approaches for vegetable crops.
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Affiliation(s)
- Jipeng Liu
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China
| | - Liang Wei
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China
| | - Shengjun Feng
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China.
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6
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Cai T, Sharif Y, Zhuang Y, Yang Q, Chen X, Chen K, Chen Y, Gao M, Dang H, Pan Y, Raza A, Zhang C, Chen H, Zhuang W. In-silico identification and characterization of O-methyltransferase gene family in peanut ( Arachis hypogaea L.) reveals their putative roles in development and stress tolerance. FRONTIERS IN PLANT SCIENCE 2023; 14:1145624. [PMID: 37063183 PMCID: PMC10102615 DOI: 10.3389/fpls.2023.1145624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/10/2023] [Indexed: 06/19/2023]
Abstract
Cultivated peanut (Arachis hypogaea) is a leading protein and oil-providing crop and food source in many countries. At the same time, it is affected by a number of biotic and abiotic stresses. O-methyltransferases (OMTs) play important roles in secondary metabolism, biotic and abiotic stress tolerance. However, the OMT genes have not been comprehensively analyzed in peanut. In this study, we performed a genome-wide investigation of A. hypogaea OMT genes (AhOMTs). Gene structure, motifs distribution, phylogenetic history, genome collinearity and duplication of AhOMTs were studied in detail. Promoter cis-elements, protein-protein interactions, and micro-RNAs targeting AhOMTs were also predicted. We also comprehensively studied their expression in different tissues and under different stresses. We identified 116 OMT genes in the genome of cultivated peanut. Phylogenetically, AhOMTs were divided into three groups. Tandem and segmental duplication events played a role in the evolution of AhOMTs, and purifying selection pressure drove the duplication process. AhOMT promoters were enriched in several key cis-elements involved in growth and development, hormones, light, and defense-related activities. Micro-RNAs from 12 different families targeted 35 AhOMTs. GO enrichment analysis indicated that AhOMTs are highly enriched in transferase and catalytic activities, cellular metabolic and biosynthesis processes. Transcriptome datasets revealed that AhOMTs possessed varying expression levels in different tissues and under hormones, water, and temperature stress. Expression profiling based on qRT-PCR results also supported the transcriptome results. This study provides the theoretical basis for further work on the biological roles of AhOMT genes for developmental and stress responses.
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Affiliation(s)
- Tiecheng Cai
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Yasir Sharif
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Yuhui Zhuang
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Qiang Yang
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Xiangyu Chen
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
- Crops Research Institute, Fujian Academy of Agricultural Science, Fuzhou, Fujian, China
| | - Kun Chen
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Yuting Chen
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Meijia Gao
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Hao Dang
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Yijing Pan
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Ali Raza
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Chong Zhang
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Hua Chen
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Weijian Zhuang
- Center of Legume Plant Genetics and System Biology, College of Agronomy, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
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Expression Profile of Selected Genes Involved in Na+ Homeostasis and In Silico miRNA Identification in Medicago sativa and Medicago arborea under Salinity Stress. STRESSES 2023. [DOI: 10.3390/stresses3010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The accumulation of ions due to increased salinity in the soil is one of the major abiotic stressors of cultivated plants that negatively affect their productivity. The model plant, Medicago truncatula, is the only Medicago species that has been extensively studied, whereas research into increased salinity adaptation of two important forage legumes, M. sativa and M. arborea, has been limited. In the present study, the expression of six genes, namely SOS1, SOS3, NHX2, AKT, AVP and HKT1 was monitored to investigate the manner in which sodium ions are blocked and transferred to the various plant parts. In addition, in silico miRNA analysis was performed to identify miRNAs that possibly control the expression of the genes studied. The following treatments were applied: (1) salt stress, with initial treatment of 50 mM NaCl and gradual acclimatization every 10 days, (2) salt shock, with continuous application of 100 mM NaCl concentration and (3) no application of NaCl. Results showed that M. arborea appeared to overexpress and activate all available mechanisms of resistance in conditions of increased salinity, while M. sativa acted in a more targeted way, overexpressing the HKT1 and AKT genes that contribute to the accumulation of sodium ions, particularly in the root. Regarding miRNA in silico analysis, five miRNAs with significant complementarity to putative target genes, AKT1, AVP and SOS3 were identified and served as a first step in investigating miRNA regulatory networks. Further miRNA expression studies will validate these results. Our findings contribute to the understanding of the molecular mechanisms underlying salt-responsiveness in Medicago and could be used in the future for generating salt-tolerant genotypes in crop improvement programs.
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Jamla M, Joshi S, Patil S, Tripathi BN, Kumar V. MicroRNAs modulating nutrient homeostasis: a sustainable approach for developing biofortified crops. PROTOPLASMA 2023; 260:5-19. [PMID: 35657503 DOI: 10.1007/s00709-022-01775-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
During their lifespan, sessile plants have to cope with bioavailability of the suboptimal nutrient concentration and have to constantly sense/evolve the connecting web of signal cascades for efficient nutrient uptake, storage, and translocation for proper growth and metabolism. However, environmental fluctuations and escalating anthropogenic activities are making it a formidable challenge for plants. This is adding to (micro)nutrient-deficient crops and nutritional insecurity. Biofortification is emerging as a sustainable and efficacious approach which can be utilized to combat the micronutrient malnutrition. A biofortified crop has an enriched level of desired nutrients developed using conventional breeding, agronomic practices, or advanced biotechnological tools. Nutrient homeostasis gets hampered under nutrient stress, which involves disturbance in short-distance and long-distance cell-cell/cell-organ communications involving multiple cellular and molecular components. Advanced sequencing platforms coupled with bioinformatics pipelines and databases have suggested the potential roles of tiny signaling molecules and post-transcriptional regulators, the microRNAs (miRNAs) in key plant phenomena including nutrient homeostasis. miRNAs are seen as emerging targets for biotechnology-based biofortification programs. Thus, understanding the mechanistic insights and regulatory role of miRNAs could open new windows for exploring them in developing nutrient-efficient biofortified crops. This review discusses significance and roles of miRNAs in plant nutrition and nutrient homeostasis and how they play key roles in plant responses to nutrient imbalances/deficiencies/toxicities covering major nutrients-nitrogen (N), phosphorus (P), sulfur (S), magnesium (Mg), iron (Fe), and zinc (Zn). A perspective view has been given on developing miRNA-engineered biofortified crops with recent success stories. Current challenges and future strategies have also been discussed.
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Affiliation(s)
- Monica Jamla
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Ganeshkhind, Pune, 411016, India
| | - Shrushti Joshi
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Ganeshkhind, Pune, 411016, India
| | - Suraj Patil
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Ganeshkhind, Pune, 411016, India
| | - Bhumi Nath Tripathi
- Department of Biotechnology, Indira Gandhi National Tribal University, Amarkantak, 484887, India
| | - Vinay Kumar
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Ganeshkhind, Pune, 411016, India.
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9
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Overexpression of Mtr-miR319a Contributes to Leaf Curl and Salt Stress Adaptation in Arabidopsis thaliana and Medicago truncatula. Int J Mol Sci 2022; 24:ijms24010429. [PMID: 36613873 PMCID: PMC9820427 DOI: 10.3390/ijms24010429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
Salt stress is a worldwide agronomic issue that limits crop yield and quality. Improving salt stress tolerance via genetic modification is the most efficient method to conquer soil salinization problems in crops. Crop miRNAs have been declared to be tightly associated with responding and adapting to salt stress and are advantageous for salt tolerance modification. However, very few studies have validated vital salt tolerance miRNAs and coupled potent target genes in Medicago species, the most economically important forage legume species. In this study, Mtr-miR319a, a miRNA that was identified from the previous next-generation sequencing assay of salt-treated Medicago truncatula, was overexpressed in M. truncatula and Arabidopsis thaliana, inducing the curly leaves and salt stress tolerance phenotypes. Combining the elevated expression level of Mtr-miR319a in the M. truncatula overexpression lines under normal and salt-treatment conditions, the regulatory roles of Mtr-miR319a in leaf development and salt stress adaptation were demonstrated. Several predicted target genes of Mtr-miR319a were also regulated by Mtr-miR319a and were associated with the aforementioned phenotypes in M. truncatula plants, most notably MtTCP4. Our study clarified the functional role of Mtr-miR319a and its target genes in regulating leaf development and defending salt stress, which can help to inform crop breeding efforts for improving salt tolerance via genetic engineering.
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10
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MicroRNAs Mediated Plant Responses to Salt Stress. Cells 2022; 11:cells11182806. [PMID: 36139379 PMCID: PMC9496875 DOI: 10.3390/cells11182806] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 12/17/2022] Open
Abstract
One of the most damaging issues to cultivatable land is soil salinity. While salt stress influences plant growth and yields at low to moderate levels, severe salt stress is harmful to plant growth. Mineral shortages and toxicities frequently exacerbate the problem of salinity. The growth of many plants is quantitatively reduced by various levels of salt stress depending on the stage of development and duration of stress. Plants have developed various mechanisms to withstand salt stress. One of the key strategies is the utilization of microRNAs (miRNAs) that can influence gene regulation at the post-transcriptional stage under different environmental conditions, including salinity. Here, we have reviewed the miRNA-mediated adaptations of various plant species to salt stress and other abiotic variables. Moreover, salt responsive (SR)-miRNAs, their targets, and corresponding pathways have also been discussed. The review article concludes by suggesting that the utilization of miRNAs may be a vital strategy to generate salt tolerant crops ensuring food security in the future.
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11
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Chen B, Ding Z, Zhou X, Wang Y, Huang F, Sun J, Chen J, Han W. Integrated Full-Length Transcriptome and MicroRNA Sequencing Approaches Provide Insights Into Salt Tolerance in Mangrove ( Sonneratia apetala Buch.-Ham.). Front Genet 2022; 13:932832. [PMID: 35899202 PMCID: PMC9310009 DOI: 10.3389/fgene.2022.932832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/08/2022] [Indexed: 11/13/2022] Open
Abstract
MicroRNAs (miRNAs) are small RNA molecules that serve as key players in plant stress responses. Although stress-regulated miRNAs have been explored in various plants, they are not well studied in mangroves. Herein, we combined PacBio isoform sequencing (Iso-Seq) with BGISEQ short-read RNA-seq to probe the role of miRNAs in the salt stress response of the mangrove plant, Sonneratia apetala Buch.-Ham. A total of 1,702,463 circular consensus sequencing reads were generated that produced 295,501 nonredundant full-length transcripts from the leaves of a 1-year-old S. apetala. After sequencing nine small RNA libraries constructed from control and 1- and 28-day 300 mM NaCl treatments, we identified 143 miRNAs (114 known and 29 novel) from a total of >261 million short reads. With the criteria of |log2FC| ≥ 1 and q-value < 0.05, 42 and 70 miRNAs were differentially accumulated after 1- and 28-day salt treatments, respectively. These differential accumulated miRNAs potentially targeted salt-responsive genes encoding transcription factors, ion homeostasis, osmotic protection, and detoxificant-related proteins, reminiscent of their responsibility for salinity adaptation in S. apetala. Particularly, 62 miRNAs were Sonneratia specific under salt stress, of which 34 were co-expressed with their 131 predicted targets, thus producing 140 miRNA-target interactions. Of these, 82 miRNA-target pairs exhibited negative correlations. Eighteen miRNA targets were categorized for the 'environmental information processing' during KEGG analysis and were related to plant hormone signal transduction (ko04075), MAPK signaling pathway-plant (ko04016), and ABC transporters (ko02010). These results underscored miRNAs as possible contributors to mangrove success in severe environments and offer insights into an miRNA-mediated regulatory mechanism of salt response in S. apetala.
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Affiliation(s)
- Beibei Chen
- College of Coastal Agricultural Science, Guangdong Ocean University, Zhanjiang, China
| | - Zeyi Ding
- College of Coastal Agricultural Science, Guangdong Ocean University, Zhanjiang, China
| | - Xiang Zhou
- College of Coastal Agricultural Science, Guangdong Ocean University, Zhanjiang, China
| | - Yue Wang
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China
| | - Fei Huang
- College of Coastal Agricultural Science, Guangdong Ocean University, Zhanjiang, China
| | - Jiaxin Sun
- College of Coastal Agricultural Science, Guangdong Ocean University, Zhanjiang, China
| | - Jinhui Chen
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China
| | - Weidong Han
- College of Coastal Agricultural Science, Guangdong Ocean University, Zhanjiang, China
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12
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Drought tolerance improvement in Solanum lycopersicum: an insight into "OMICS" approaches and genome editing. 3 Biotech 2022; 12:63. [PMID: 35186660 PMCID: PMC8825918 DOI: 10.1007/s13205-022-03132-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/24/2022] [Indexed: 12/16/2022] Open
Abstract
Solanum lycopersicum (tomato) is an internationally acclaimed vegetable crop that is grown worldwide. However, drought stress is one of the most critical challenges for tomato production, and it is a crucial task for agricultural biotechnology to produce drought-resistant cultivars. Although breeders have done a lot of work on the tomato to boost quality and quantity of production and enhance resistance to biotic and abiotic stresses, conventional tomato breeding approaches have been limited to improving drought tolerance because of the intricacy of drought traits. Many efforts have been made to better understand the mechanisms involved in adaptation and tolerance to drought stress in tomatoes throughout the years. "Omics" techniques, such as genomics, transcriptomics, proteomics, and metabolomics in combination with modern sequencing technologies, have tremendously aided the discovery of drought-responsive genes. In addition, the availability of biotechnological tools, such as plant transformation and the recently developed genome editing system for tomatoes, has opened up wider opportunities for validating the function of drought-responsive genes and the generation of drought-tolerant varieties. This review highlighted the recent progresses for tomatoes improvement against drought stress through "omics" and "multi-omics" technologies including genetic engineering. We have also discussed the roles of non-coding RNAs and genome editing techniques for drought stress tolerance improvement in tomatoes.
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13
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ASRmiRNA: Abiotic Stress-Responsive miRNA Prediction in Plants by Using Machine Learning Algorithms with Pseudo K-Tuple Nucleotide Compositional Features. Int J Mol Sci 2022; 23:ijms23031612. [PMID: 35163534 PMCID: PMC8835813 DOI: 10.3390/ijms23031612] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/23/2022] [Accepted: 01/26/2022] [Indexed: 02/04/2023] Open
Abstract
MicroRNAs (miRNAs) play a significant role in plant response to different abiotic stresses. Thus, identification of abiotic stress-responsive miRNAs holds immense importance in crop breeding programmes to develop cultivars resistant to abiotic stresses. In this study, we developed a machine learning-based computational method for prediction of miRNAs associated with abiotic stresses. Three types of datasets were used for prediction, i.e., miRNA, Pre-miRNA, and Pre-miRNA + miRNA. The pseudo K-tuple nucleotide compositional features were generated for each sequence to transform the sequence data into numeric feature vectors. Support vector machine (SVM) was employed for prediction. The area under receiver operating characteristics curve (auROC) of 70.21, 69.71, 77.94 and area under precision-recall curve (auPRC) of 69.96, 65.64, 77.32 percentages were obtained for miRNA, Pre-miRNA, and Pre-miRNA + miRNA datasets, respectively. Overall prediction accuracies for the independent test set were 62.33, 64.85, 69.21 percentages, respectively, for the three datasets. The SVM also achieved higher accuracy than other learning methods such as random forest, extreme gradient boosting, and adaptive boosting. To implement our method with ease, an online prediction server “ASRmiRNA” has been developed. The proposed approach is believed to supplement the existing effort for identification of abiotic stress-responsive miRNAs and Pre-miRNAs.
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Wen Y, Raza A, Chu W, Zou X, Cheng H, Hu Q, Liu J, Wei W. Comprehensive In Silico Characterization and Expression Profiling of TCP Gene Family in Rapeseed. Front Genet 2021; 12:794297. [PMID: 34868279 PMCID: PMC8635964 DOI: 10.3389/fgene.2021.794297] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/01/2021] [Indexed: 11/13/2022] Open
Abstract
TCP proteins are plant-specific transcription factors that have multipurpose roles in plant developmental procedures and stress responses. Therefore, a genome-wide analysis was performed to categorize the TCP genes in the rapeseed genome. In this study, a total of 80 BnTCP genes were identified in the rapeseed genome and grouped into two main classes (PCF and CYC/TB1) according to phylogenetic analysis. The universal evolutionary analysis uncovered that BnTCP genes had experienced segmental duplications and positive selection pressure. Gene structure and conserved motif examination presented that Class I and Class II have diverse intron-exon patterns and motifs numbers. Overall, nine conserved motifs were identified and varied from 2 to 7 in all TCP genes; and some of them were gene-specific. Mainly, Class II (PCF and CYC/TB1) possessed diverse structures compared to Class I. We identified four hormone- and four stress-related responsive cis-elements in the promoter regions. Moreover, 32 bna-miRNAs from 14 families were found to be targeting 21 BnTCPs genes. Gene ontology enrichment analysis presented that the BnTCP genes were primarily related to RNA/DNA binding, metabolic processes, transcriptional regulatory activities, etc. Transcriptome-based tissue-specific expression analysis showed that only a few genes (mainly BnTCP9, BnTCP22, BnTCP25, BnTCP48, BnTCP52, BnTCP60, BnTCP66, and BnTCP74) presented higher expression in root, stem, leaf, flower, seeds, and silique among all tested tissues. Likewise, qRT-PCR-based expression analysis exhibited that BnTCP36, BnTCP39, BnTCP53, BnTCP59, and BnTCP60 showed higher expression at certain time points under various hormones and abiotic stress conditions but not by drought and MeJA. Our results opened the new groundwork for future understanding of the intricate mechanisms of BnTCP in various developmental processes and abiotic stress signaling pathways in rapeseed.
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Affiliation(s)
- Yunfei Wen
- College of Agriculture, Yangtze University, Jingzhou, China.,Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Ali Raza
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China.,Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Wen Chu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Xiling Zou
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Hongtao Cheng
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Qiong Hu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Jia Liu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Wenliang Wei
- College of Agriculture, Yangtze University, Jingzhou, China
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15
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Patil S, Joshi S, Jamla M, Zhou X, Taherzadeh MJ, Suprasanna P, Kumar V. MicroRNA-mediated bioengineering for climate-resilience in crops. Bioengineered 2021; 12:10430-10456. [PMID: 34747296 PMCID: PMC8815627 DOI: 10.1080/21655979.2021.1997244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/24/2022] Open
Abstract
Global projections on the climate change and the dynamic environmental perturbations indicate severe impacts on food security in general, and crop yield, vigor and the quality of produce in particular. Sessile plants respond to environmental challenges such as salt, drought, temperature, heavy metals at transcriptional and/or post-transcriptional levels through the stress-regulated network of pathways including transcription factors, proteins and the small non-coding endogenous RNAs. Amongs these, the miRNAs have gained unprecedented attention in recent years as key regulators for modulating gene expression in plants under stress. Hence, tailoring of miRNAs and their target pathways presents a promising strategy for developing multiple stress-tolerant crops. Plant stress tolerance has been successfully achieved through the over expression of microRNAs such as Os-miR408, Hv-miR82 for drought tolerance; OsmiR535A and artificial DST miRNA for salinity tolerance; and OsmiR535 and miR156 for combined drought and salt stress. Examples of miR408 overexpression also showed improved efficiency of irradiation utilization and carbon dioxide fixation in crop plants. Through this review, we present the current understanding about plant miRNAs, their roles in plant growth and stress-responses, the modern toolbox for identification, characterization and validation of miRNAs and their target genes including in silico tools, machine learning and artificial intelligence. Various approaches for up-regulation or knock-out of miRNAs have been discussed. The main emphasis has been given to the exploration of miRNAs for development of bioengineered climate-smart crops that can withstand changing climates and stressful environments, including combination of stresses, with very less or no yield penalties.
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Affiliation(s)
- Suraj Patil
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Pune, India
| | - Shrushti Joshi
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Pune, India
| | - Monica Jamla
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Pune, India
| | - Xianrong Zhou
- School of Life Science and Biotechnology, Yangtze Normal University, Ch-ongqing, China
| | | | - Penna Suprasanna
- Bhabha Atomic Research Centre, Homi Bhabha National Institute, Mumbai, India
| | - Vinay Kumar
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Pune, India
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16
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miRNAomic Approach to Plant Nitrogen Starvation. Int J Genomics 2021; 2021:8560323. [PMID: 34796230 PMCID: PMC8595019 DOI: 10.1155/2021/8560323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/02/2022] Open
Abstract
Nitrogen (N) is one of the indispensable nutrients required by plants for their growth, development, and survival. Being a limited nutrient, it is mostly supplied exogenously to the plants, to maintain quality and productivity. The increased use of N fertilizers is associated with high-cost inputs and negative environmental consequences, which necessitates the development of nitrogen-use-efficient plants for sustainable agriculture. Understanding the regulatory mechanisms underlying N metabolism in plants under low N is one of the prerequisites for the development of nitrogen-use-efficient plants. One of the important and recently discovered groups of regulatory molecules acting at the posttranscriptional and translational levels are microRNAs (miRNAs). miRNAs are known to play critical roles in the regulation of gene expression in plants under different stress conditions including N stress. Several classes of miRNAs associated with N metabolism have been identified so far. These nitrogen-responsive miRNAs may provide a platform for a better understanding of the regulation of N metabolism and pave a way for the development of genotypes for better N utilization. The current review presents a brief outline of miRNAs and their regulatory role in N metabolism.
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da Silva MSRDA, Dos Santos BDMS, da Silva CSRDA, da Silva CSRDA, Antunes LFDS, Dos Santos RM, Santos CHB, Rigobelo EC. Humic Substances in Combination With Plant Growth-Promoting Bacteria as an Alternative for Sustainable Agriculture. Front Microbiol 2021; 12:719653. [PMID: 34777275 PMCID: PMC8589081 DOI: 10.3389/fmicb.2021.719653] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/16/2021] [Indexed: 11/13/2022] Open
Abstract
Plant growth-promoting bacteria (PGPB) and humic substances (HSs) are promising options for reducing the use of pesticides and mineral fertilizers. Although many studies have shown the effects of PGPB and HSs separately, little information is available on plant responses to the combined application of these biostimulants despite the great potential for the simultaneous action of these biological inputs. Thus, the objective of this review is to present an overview of scientific studies that addressed the application of PGPB and HSs to different crops. First, we discuss the effect of these biostimulants on biological nitrogen fixation, the various effects of the inoculation of beneficial bacteria combined with the application of HSs on promoting the growth of nonleguminous plants and how this combination can increase bacterial colonization of plant hosts. We also address the effect of PGPB and HSs on plant responses to abiotic stresses, in addition to discussing the role of HSs in protecting plants against pathogens. There is a lack of studies that address the role of PGPB + HSs in biocontrol. Understanding the factors involved in the promotion of plant growth through the application of PGPB and HSs can assist in the development of efficient biostimulants for agricultural management. This approach has the potential to accelerate the transition from conventional cultivation to sustainable agrosystems.
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Affiliation(s)
| | | | - Camilla Santos Reis de Andrade da Silva
- Department of Soil, Universidade Federal Rural do Rio de Janeiro, Seropédica, Brazil.,National Agrobiology Research Center, Embrapa Agrobiologia, Seropédica, Brazil
| | | | | | | | | | - Everlon Cid Rigobelo
- Department of Agricultural Production Sciences, Universidade Estadual Paulista, Jaboticabal, Brazil
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19
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Waterlogging-Stress-Responsive LncRNAs, Their Regulatory Relationships with miRNAs and Target Genes in Cucumber ( Cucumis sativus L.). Int J Mol Sci 2021; 22:ijms22158197. [PMID: 34360961 PMCID: PMC8348067 DOI: 10.3390/ijms22158197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/19/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022] Open
Abstract
Low oxygen level is a phenomenon often occurring during the cucumber cultivation period. Genes involved in adaptations to stress can be regulated by non-coding RNA. The aim was the identification of long non-coding RNAs (lncRNAs) involved in the response to long-term waterlogging stress in two cucumber haploid lines, i.e., DH2 (waterlogging tolerant—WL-T) and DH4 (waterlogging sensitive—WL-S). Plants, at the juvenile stage, were waterlogged for 7 days (non-primed, 1xH), and after a 14-day recovery period, plants were stressed again for another 7 days (primed, 2xH). Roots were collected for high-throughput RNA sequencing. Implementation of the bioinformatic pipeline made it possible to determine specific lncRNAs for non-primed and primed plants of both accessions, highlighting differential responses to hypoxia stress. In total, 3738 lncRNA molecules were identified. The highest number (1476) of unique lncRNAs was determined for non-primed WL-S plants. Seventy-one lncRNAs were depicted as potentially being involved in acquiring tolerance to hypoxia in cucumber. Understanding the mechanism of gene regulation under long-term waterlogging by lncRNAs and their interactions with miRNAs provides sufficient information in terms of adaptation to the oxygen deprivation in cucumber. To the best of our knowledge, this is the first report concerning the role of lncRNAs in the regulation of long-term waterlogging tolerance by priming application in cucumber.
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20
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Prathi NB, Durga Rani CV, Balachandran SM, Prakasam V, Chandra Mohan Y, Nagalakshmi S, Srivastava SK, Sundaram RM, Mangrauthia SK. Genome-Wide Expression Profiling of Small RNAs in Indian Strain of Rhizoctonia solani AG1-1A Reveals Differential Regulation of milRNAs during Pathogenesis and Crosstalk of Gene Regulation. J Fungi (Basel) 2021; 7:jof7070561. [PMID: 34356939 PMCID: PMC8304579 DOI: 10.3390/jof7070561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/26/2021] [Accepted: 07/08/2021] [Indexed: 11/16/2022] Open
Abstract
Rhizoctonia solani AG1-1A is a necrotrophic fungus that causes sheath blight disease in rice. The reliable resistant source against this phytopathogenic fungus is not available in the gene pool of rice. Better understanding of pathogen genomics and gene regulatory networks are critical to devise alternate strategies for developing resistance against this noxious pathogen. In this study, miRNA-like RNAs (milRNAs) of an Indian strain of R. solani were identified by deep sequencing of small RNAs. We identified 128 known and 22 novel milRNAs from 20,963,123 sequence reads. These milRNAs showed 1725 target genes in the fungal genome which include genes associated with growth, development, pathogenesis and virulence of R. solani. Notably, these fungal milRNAs showed their target genes in host (rice) genome also which were later verified by qRT-PCR. The host target genes are associated with auxin metabolism, hypersensitive response, defense genes, and genes related to growth and development of rice. Osa-vacuolar-sorting receptor precursor: Rhi-milR-13, Osa-KANADI1:Rhi-milR-124, Osa-isoflavone reductase: Rhi-milR-135, Osa-nuclear transcription factor Y:Rhi-milR-131, Osa-NB-ARC domain containing protein: Rhi-milR-18, and Osa-OsFBX438: Rhi-milR-142 are notable potential regulons of host target genes: fungal milRNAs that need to be investigated for better understanding of the crosstalk of RNAi pathways between R. solani and rice. The detailed expression analysis of 17 milRNAs by qRT-PCR was analysed during infection at different time points of inoculation, at different growth stages of the host, in four different genotypes of the host, and also in four different strains of fungi which revealed differential regulation of milRNAs associated with pathogenesis and virulence. This study highlights several important findings on fungal milRNAs which need to be further studied and characterized to decipher the gene expression and regulation of this economically important phytopathogen.
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Affiliation(s)
- Naresh Babu Prathi
- Institute of Biotechnology, Professor Jayashankar Telangana State Agricultural University (PJTSAU), Rajendranagar, Hyderabad 500030, India; (N.B.P.); (C.V.D.R.); (Y.C.M.)
- Indian Council of Agricultural Research (ICAR)-Indian Institute of Rice Research, Hyderabad 500030, India; (S.M.B.); (V.P.); (S.N.); (R.M.S.)
| | - Chagamreddy Venkata Durga Rani
- Institute of Biotechnology, Professor Jayashankar Telangana State Agricultural University (PJTSAU), Rajendranagar, Hyderabad 500030, India; (N.B.P.); (C.V.D.R.); (Y.C.M.)
| | - Sena Munuswamy Balachandran
- Indian Council of Agricultural Research (ICAR)-Indian Institute of Rice Research, Hyderabad 500030, India; (S.M.B.); (V.P.); (S.N.); (R.M.S.)
| | - Vellaisamy Prakasam
- Indian Council of Agricultural Research (ICAR)-Indian Institute of Rice Research, Hyderabad 500030, India; (S.M.B.); (V.P.); (S.N.); (R.M.S.)
| | - Yeshala Chandra Mohan
- Institute of Biotechnology, Professor Jayashankar Telangana State Agricultural University (PJTSAU), Rajendranagar, Hyderabad 500030, India; (N.B.P.); (C.V.D.R.); (Y.C.M.)
| | - Sanivarapu Nagalakshmi
- Indian Council of Agricultural Research (ICAR)-Indian Institute of Rice Research, Hyderabad 500030, India; (S.M.B.); (V.P.); (S.N.); (R.M.S.)
| | - Sunil K. Srivastava
- Department of Microbiology, Swami Shraddhanand College, University of Delhi, Alipur, Delhi 110036, India;
| | - Raman Meenakshi Sundaram
- Indian Council of Agricultural Research (ICAR)-Indian Institute of Rice Research, Hyderabad 500030, India; (S.M.B.); (V.P.); (S.N.); (R.M.S.)
| | - Satendra K. Mangrauthia
- Indian Council of Agricultural Research (ICAR)-Indian Institute of Rice Research, Hyderabad 500030, India; (S.M.B.); (V.P.); (S.N.); (R.M.S.)
- Correspondence: or ; Tel.: +91-40-24591342
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21
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Zenda T, Liu S, Dong A, Duan H. Advances in Cereal Crop Genomics for Resilience under Climate Change. Life (Basel) 2021; 11:502. [PMID: 34072447 PMCID: PMC8228855 DOI: 10.3390/life11060502] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 12/12/2022] Open
Abstract
Adapting to climate change, providing sufficient human food and nutritional needs, and securing sufficient energy supplies will call for a radical transformation from the current conventional adaptation approaches to more broad-based and transformative alternatives. This entails diversifying the agricultural system and boosting productivity of major cereal crops through development of climate-resilient cultivars that can sustainably maintain higher yields under climate change conditions, expanding our focus to crop wild relatives, and better exploitation of underutilized crop species. This is facilitated by the recent developments in plant genomics, such as advances in genome sequencing, assembly, and annotation, as well as gene editing technologies, which have increased the availability of high-quality reference genomes for various model and non-model plant species. This has necessitated genomics-assisted breeding of crops, including underutilized species, consequently broadening genetic variation of the available germplasm; improving the discovery of novel alleles controlling important agronomic traits; and enhancing creation of new crop cultivars with improved tolerance to biotic and abiotic stresses and superior nutritive quality. Here, therefore, we summarize these recent developments in plant genomics and their application, with particular reference to cereal crops (including underutilized species). Particularly, we discuss genome sequencing approaches, quantitative trait loci (QTL) mapping and genome-wide association (GWAS) studies, directed mutagenesis, plant non-coding RNAs, precise gene editing technologies such as CRISPR-Cas9, and complementation of crop genotyping by crop phenotyping. We then conclude by providing an outlook that, as we step into the future, high-throughput phenotyping, pan-genomics, transposable elements analysis, and machine learning hold much promise for crop improvements related to climate resilience and nutritional superiority.
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Affiliation(s)
- Tinashe Zenda
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Science, Faculty of Agriculture and Environmental Science, Bindura University of Science Education, Bindura P. Bag 1020, Zimbabwe
| | - Songtao Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Anyi Dong
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Huijun Duan
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (S.L.); (A.D.)
- North China Key Laboratory for Crop Germplasm Resources of the Education Ministry, Hebei Agricultural University, Baoding 071001, China
- Department of Crop Genetics and Breeding, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
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Pagano L, Rossi R, Paesano L, Marmiroli N, Marmiroli M. miRNA regulation and stress adaptation in plants. ENVIRONMENTAL AND EXPERIMENTAL BOTANY 2021. [PMID: 0 DOI: 10.1016/j.envexpbot.2020.104369] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
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Krishnatreya DB, Agarwala N, Gill SS, Bandyopadhyay T. Understanding the role of miRNAs for improvement of tea quality and stress tolerance. J Biotechnol 2021; 328:34-46. [PMID: 33421509 DOI: 10.1016/j.jbiotec.2020.12.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/04/2020] [Accepted: 12/28/2020] [Indexed: 12/18/2022]
Abstract
MicroRNAs (miRNAs) are an emerging class of small non-coding RNAs that exhibit important role in regulation of gene expression, mostly through the mechanism of cleavage and/or inhibition of translation of target mRNAs during or after transcription. Although much has been unravelled about the role of miRNAs in diverse biological processes like maintenance of functional integrity of genes and genome, growth and development, metabolism, and adaptive responses towards biotic and abiotic stresses in plants, not much is known on their specific roles in majority of cash crops - an area of investigation with potentially significant and gainful economic implications. Tea (Camellia sinensis) is globally the second most consumed beverage after water and its cultivation has major agro-economic and social ramifications. In recent years, global tea production has been greatly challenged by many biotic and abiotic stress factors and a deeper understanding of molecular processes regulating stress adaptation in this largely under investigated crop stands to significantly facilitate potential crop improvement strategies towards durable stress tolerance. This review endeavours to highlight recent advances in our understanding of the role of miRNAs in regulating stress tolerance traits in tea plant with additional focus on their role in determining tea quality attributes.
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Affiliation(s)
| | - Niraj Agarwala
- Department of Botany, Gauhati University, Jalukbari, Guwahati, Assam, 781014, India.
| | - Sarvajeet Singh Gill
- Center for Biotechnology, Maharshi Dayanand University, Rohtak, Haryana, 124001, India
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Wen Y, Raza A, Chu W, Zou X, Cheng H, Hu Q, Liu J, Wei W. Comprehensive In Silico Characterization and Expression Profiling of TCP Gene Family in Rapeseed. Front Genet 2021. [PMID: 34868279 DOI: 10.3389/fgene2021.794297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023] Open
Abstract
TCP proteins are plant-specific transcription factors that have multipurpose roles in plant developmental procedures and stress responses. Therefore, a genome-wide analysis was performed to categorize the TCP genes in the rapeseed genome. In this study, a total of 80 BnTCP genes were identified in the rapeseed genome and grouped into two main classes (PCF and CYC/TB1) according to phylogenetic analysis. The universal evolutionary analysis uncovered that BnTCP genes had experienced segmental duplications and positive selection pressure. Gene structure and conserved motif examination presented that Class I and Class II have diverse intron-exon patterns and motifs numbers. Overall, nine conserved motifs were identified and varied from 2 to 7 in all TCP genes; and some of them were gene-specific. Mainly, Class II (PCF and CYC/TB1) possessed diverse structures compared to Class I. We identified four hormone- and four stress-related responsive cis-elements in the promoter regions. Moreover, 32 bna-miRNAs from 14 families were found to be targeting 21 BnTCPs genes. Gene ontology enrichment analysis presented that the BnTCP genes were primarily related to RNA/DNA binding, metabolic processes, transcriptional regulatory activities, etc. Transcriptome-based tissue-specific expression analysis showed that only a few genes (mainly BnTCP9, BnTCP22, BnTCP25, BnTCP48, BnTCP52, BnTCP60, BnTCP66, and BnTCP74) presented higher expression in root, stem, leaf, flower, seeds, and silique among all tested tissues. Likewise, qRT-PCR-based expression analysis exhibited that BnTCP36, BnTCP39, BnTCP53, BnTCP59, and BnTCP60 showed higher expression at certain time points under various hormones and abiotic stress conditions but not by drought and MeJA. Our results opened the new groundwork for future understanding of the intricate mechanisms of BnTCP in various developmental processes and abiotic stress signaling pathways in rapeseed.
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Affiliation(s)
- Yunfei Wen
- College of Agriculture, Yangtze University, Jingzhou, China
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Ali Raza
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
- Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Wen Chu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Xiling Zou
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Hongtao Cheng
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Qiong Hu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Jia Liu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Wenliang Wei
- College of Agriculture, Yangtze University, Jingzhou, China
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A Comprehensive Analysis of MicroRNAs Expressed in Susceptible and Resistant Rice Cultivars during Rhizoctonia solani AG1-IA Infection Causing Sheath Blight Disease. Int J Mol Sci 2020; 21:ijms21217974. [PMID: 33120987 PMCID: PMC7662745 DOI: 10.3390/ijms21217974] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs regulate plant responses to fungal infections and immunity. In this study, miRNAs were identified in six rice cultivars during a Rhizoctonia solani Kühn AG1-IA infection using a deep sequencing approach. Known and novel miRNAs were analyzed in these rice cultivars, and a set of fungal infection/immunity-associated miRNAs and target genes were quantified by reverse transcription (RT)-qPCR in six rice cultivars. Additionally, the relative expression of these miRNAs was analyzed in different time points of the infection, wild species of rice, and in response to different strains of R. solani. Osa-miR1320-5p showed preferential expression during the fungal infection in all the six rice genotypes, while Osa-miR156d, Osa-miR159b, Osa-miR820c, and Osa-miR1876 were differentially regulated in susceptible and resistant genotypes. A greater degree of downregulation of miRNAs was observed during the initial time points of infection (24-72 h), suggesting a maximum molecular activity of rice-R. solani interaction and resistance response of the host during the early phase of infection. After R. solani infection, the expression of Osa-miR820c and Osa-miR156d was downregulated in Oryza rufipogon, O. alta, O. latifolia, and O. minuta, while Osa-miR397b was downregulated in all the wild rice species except O. officinalis. This study provided comprehensive information on the repertoire of miRNAs expressed in six sheath blight disease-susceptible and resistant indica and aus rice cultivars.
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Jha UC, Nayyar H, Jha R, Khurshid M, Zhou M, Mantri N, Siddique KHM. Long non-coding RNAs: emerging players regulating plant abiotic stress response and adaptation. BMC PLANT BIOLOGY 2020; 20:466. [PMID: 33046001 PMCID: PMC7549229 DOI: 10.1186/s12870-020-02595-x] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 08/12/2020] [Indexed: 05/13/2023]
Abstract
BACKGROUND The immobile nature of plants means that they can be frequently confronted by various biotic and abiotic stresses during their lifecycle. Among the various abiotic stresses, water stress, temperature extremities, salinity, and heavy metal toxicity are the major abiotic stresses challenging overall plant growth. Plants have evolved complex molecular mechanisms to adapt under the given abiotic stresses. Long non-coding RNAs (lncRNAs)-a diverse class of RNAs that contain > 200 nucleotides(nt)-play an essential role in plant adaptation to various abiotic stresses. RESULTS LncRNAs play a significant role as 'biological regulators' for various developmental processes and biotic and abiotic stress responses in animals and plants at the transcription, post-transcription, and epigenetic level, targeting various stress-responsive mRNAs, regulatory gene(s) encoding transcription factors, and numerous microRNAs (miRNAs) that regulate the expression of different genes. However, the mechanistic role of lncRNAs at the molecular level, and possible target gene(s) contributing to plant abiotic stress response and adaptation, remain largely unknown. Here, we review various types of lncRNAs found in different plant species, with a focus on understanding the complex molecular mechanisms that contribute to abiotic stress tolerance in plants. We start by discussing the biogenesis, type and function, phylogenetic relationships, and sequence conservation of lncRNAs. Next, we review the role of lncRNAs controlling various abiotic stresses, including drought, heat, cold, heavy metal toxicity, and nutrient deficiency, with relevant examples from various plant species. Lastly, we briefly discuss the various lncRNA databases and the role of bioinformatics for predicting the structural and functional annotation of novel lncRNAs. CONCLUSIONS Understanding the intricate molecular mechanisms of stress-responsive lncRNAs is in its infancy. The availability of a comprehensive atlas of lncRNAs across whole genomes in crop plants, coupled with a comprehensive understanding of the complex molecular mechanisms that regulate various abiotic stress responses, will enable us to use lncRNAs as potential biomarkers for tailoring abiotic stress-tolerant plants in the future.
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Affiliation(s)
- Uday Chand Jha
- ICAR-Indian Institute of Pulses Research (IIPR), Kanpur, 208024, India.
| | - Harsh Nayyar
- Department of Botany, Panjab University, Chandigarh, India
| | - Rintu Jha
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Muhammad Khurshid
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Institute of Biochemistry and Biotechnology, University of the Punjab, Lahore, Pakistan
| | - Meiliang Zhou
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Nitin Mantri
- School of Science, RMIT University, Plenty Road, Bundoora. Victoria. 3083., Australia
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia.
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Singh DK, Mehra S, Chatterjee S, Purty RS. In silico identification and validation of miRNA and their DIR specific targets in Oryza sativa Indica under abiotic stress. Noncoding RNA Res 2020; 5:167-177. [PMID: 33024905 PMCID: PMC7522899 DOI: 10.1016/j.ncrna.2020.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 11/08/2022] Open
Abstract
Several biotic (bacterial and viral pathogenesis) and abiotic stress factors like salt, drought, cold, and extreme temperatures significantly reduce crop productivity and grain quality throughout the world. MicroRNAs (miRNAs) are small (~22 nucleotides) non-coding endogenous RNA molecules which negatively regulate gene expression at the post-transcriptional level either by degrading the target protein-coding mRNA genes or suppressing translation in plants. Dirigent (DIR) gene protein plays a crucial role as they are involved to dictate the stereochemistry of a compound synthesized by other enzymes as well as in lignifications against biotic and abiotic stress. In plants, several miRNAs, as well as their targets, are known to regulate stress response but systematic identification of the same is limited. The present work has been designed for in silico identification of miRNAs against a total of sixty-one DIR genes in Oryza sativa Indica followed by target prediction of identified miRNAs through the computational approach and thereafter validation of potential miRNAs in rice genotypes. We systematically identified 3 miRNA and their respective DIR specific target gene in Oryza sativa Indica. The expression of these three miRNAs and their respective DIR specific targets were validated in rice seedlings subjected to five different abiotic stress conditions (heavy metal, high temperature, low temperature, salinity and drought) by quantitative Real-Time PCR (qRT-PCR). Expression analysis indicated that miRNA under stress conditions regulates the gene expression of the DIR gene in rice. To the best of our knowledge this is this is the first report in any organism showing the expression of ath-miRf10317-akr, and osamiRf10761-akr miRNAs in response to various abiotic stresses. Total 61 DIR proteins were identified & classified into 6 groups based on phylogeny analysis in Oryza sativa Indica. Three miRNAs ath-miRf10317-akr, cre-miR910 and osa-miRf10761-akr were identified via computational approach. These 3 miRNAs in response to abiotic stresses showed inverse expression pattern in the respective target genes. This is the first report on expression of ath-miRf10317-akr, and osa-miRf10761-akr miRNAs in response to abiotic stresses.
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Affiliation(s)
- Deepak Kumar Singh
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sec-16C, Dwarka, New Delhi, India
| | - Shourya Mehra
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sec-16C, Dwarka, New Delhi, India
| | - Sayan Chatterjee
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sec-16C, Dwarka, New Delhi, India
| | - Ram Singh Purty
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sec-16C, Dwarka, New Delhi, India
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