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Zhao X, Li F, Ali M, Li X, Fu X, Zhang X. Emerging roles and mechanisms of lncRNAs in fruit and vegetables. HORTICULTURE RESEARCH 2024; 11:uhae046. [PMID: 38706580 PMCID: PMC11069430 DOI: 10.1093/hr/uhae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/07/2024] [Indexed: 05/07/2024]
Abstract
With the development of genome sequencing technologies, many long non-coding RNAs (lncRNAs) have been identified in fruit and vegetables. lncRNAs are primarily transcribed and spliced by RNA polymerase II (Pol II) or plant-specific Pol IV/V, and exhibit limited evolutionary conservation. lncRNAs intricately regulate various aspects of fruit and vegetables, including pigment accumulation, reproductive tissue development, fruit ripening, and responses to biotic and abiotic stresses, through diverse mechanisms such as gene expression modulation, interaction with hormones and transcription factors, microRNA regulation, and involvement in alternative splicing. This review presents a comprehensive overview of lncRNA classification, basic characteristics, and, most importantly, recent advances in understanding their functions and regulatory mechanisms.
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Affiliation(s)
- Xiuming Zhao
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Fujun Li
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Maratab Ali
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Xiaoan Li
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Xiaodong Fu
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Xinhua Zhang
- College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255000, Shandong, China
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2
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Shi D, Huang H, Zhang Y, Qian Z, Du J, Huang L, Yan X, Lin S. The roles of non-coding RNAs in male reproductive development and abiotic stress responses during this unique process in flowering plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 341:111995. [PMID: 38266717 DOI: 10.1016/j.plantsci.2024.111995] [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: 09/10/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
Successful male reproductive development is the guarantee for sexual reproduction of flowering plants. Male reproductive development is a complicated and multi-stage process that integrates physiological processes and adaptation and tolerance to a myriad of environmental stresses. This well-coordinated process is governed by genetic and epigenetic machineries. Non-coding RNAs (ncRNAs) play pleiotropic roles in the plant growth and development. The identification, characterization and functional analysis of ncRNAs and their target genes have opened a new avenue for comprehensively revealing the regulatory network of male reproductive development and its response to environmental stresses in plants. This review briefly addresses the types, origin, biogenesis and mechanisms of ncRNAs in plants, highlights important updates on the roles of ncRNAs in regulating male reproductive development and emphasizes the contribution of ncRNAs, especially miRNAs and lncRNAs, in responses to abiotic stresses during this unique process in flowering plants.
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Affiliation(s)
- Dexi Shi
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Huiting Huang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Yuting Zhang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Zhihao Qian
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Jiao Du
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Li Huang
- Laboratory of Cell & Molecular Biology, Institute of Vegetable Science, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Xiufeng Yan
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China.
| | - Sue Lin
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China.
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3
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Xu T, Yuan J, Song F, Zhang N, Gao C, Chen Z. Exploring the functional role of tRF-39-8HM2OSRNLNKSEKH9 in hepatocellular carcinoma. Heliyon 2024; 10:e27153. [PMID: 38455567 PMCID: PMC10918225 DOI: 10.1016/j.heliyon.2024.e27153] [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: 07/29/2023] [Revised: 02/14/2024] [Accepted: 02/26/2024] [Indexed: 03/09/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is associated with high morbidity and mortality globally. tRNA-derived small RNAs (tsRNAs) have emerged as potential targets for cancer treatment. However, the specific impact of tsRNAs on HCC remains undiscovered. In this study, we aimed to investigate the biological significance of tsRNAs in HCC. First, we screened the differentially expressed tsRNAs in HCC tissues and normal tissues adjacent to the tumor (NAT) using high-throughput sequencing and the results showed that tRF-39-8HM2OSRNLNKSEKH9 was more highly expressed in HCC tissues than NATs. Agarose gel electrophoresis (AGE), nuclear-cytoplasmic separation assays and fluorescence in situ hybridization (FISH) were employed to assess the characterization of tRF-39-8HM2OSRNLNKSEKH9. The relationship between the expression of tRF-39-8HM2OSRNLNKSEKH9 and clinicopathological parameters was evaluated and we found that it was positively associated with tumor size. The cell counting kit-8 (CCK8) assay, colony formation assay and EdU staining assay were employed to investigate the role of tRF-39-8HM2OSRNLNKSEKH9 in the proliferation of HCC cells. Additionally, transwell assays demonstrated that overexpression of tRF-39-8HM2OSRNLNKSEKH9 could accelerate cell migration capability. Taken together, tRF-39-8HM2OSRNLNKSEKH9 was highly expressed in HCC cells, serum and tissues, and it may play an oncogenic role in HCC cells through interacting with downstream mRNA targets.
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Affiliation(s)
- Tianxin Xu
- Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Jie Yuan
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Fei Song
- Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Nannan Zhang
- Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Cheng Gao
- Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
| | - Zhong Chen
- Department of General Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China
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Mierziak J, Wojtasik W. Epigenetic weapons of plants against fungal pathogens. BMC PLANT BIOLOGY 2024; 24:175. [PMID: 38443788 PMCID: PMC10916060 DOI: 10.1186/s12870-024-04829-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 02/16/2024] [Indexed: 03/07/2024]
Abstract
In the natural environment, plants face constant exposure to biotic stress caused by fungal attacks. The plant's response to various biotic stresses relies heavily on its ability to rapidly adjust the transcriptome. External signals are transmitted to the nucleus, leading to activation of transcription factors that subsequently enhance the expression of specific defense-related genes. Epigenetic mechanisms, including histone modifications and DNA methylation, which are closely linked to chromatin states, regulate gene expression associated with defense against biotic stress. Additionally, chromatin remodelers and non-coding RNA play a significant role in plant defense against stressors. These molecular modifications enable plants to exhibit enhanced resistance and productivity under diverse environmental conditions. Epigenetic mechanisms also contribute to stress-induced environmental epigenetic memory and priming in plants, enabling them to recall past molecular experiences and utilize this stored information for adaptation to new conditions. In the arms race between fungi and plants, a significant aspect is the cross-kingdom RNAi mechanism, whereby sRNAs can traverse organismal boundaries. Fungi utilize sRNA as an effector molecule to silence plant resistance genes, while plants transport sRNA, primarily through extracellular vesicles, to pathogens in order to suppress virulence-related genes. In this review, we summarize contemporary knowledge on epigenetic mechanisms of plant defense against attack by pathogenic fungi. The role of epigenetic mechanisms during plant-fungus symbiotic interactions is also considered.
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Affiliation(s)
- Justyna Mierziak
- Department of Genetic Biochemistry, Faculty of Biotechnology, University of Wroclaw, Przybyszewskiego 63, Wroclaw, 51-148, Poland
| | - Wioleta Wojtasik
- Department of Genetic Biochemistry, Faculty of Biotechnology, University of Wroclaw, Przybyszewskiego 63, Wroclaw, 51-148, Poland.
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Khojali WMA, Khalifa NE, Alshammari F, Afsar S, Aboshouk NAM, Khalifa AAS, Enrera JA, Elafandy NM, Abdalla RAH, Ali OHH, Syed RU, Nagaraju P. Pyroptosis-related non-coding RNAs emerging players in atherosclerosis pathology. Pathol Res Pract 2024; 255:155219. [PMID: 38401375 DOI: 10.1016/j.prp.2024.155219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/06/2024] [Accepted: 02/15/2024] [Indexed: 02/26/2024]
Abstract
Globally, atherosclerosis a persistent inflammatory condition of the artery walls continues to be the primary cause of cardiovascular illness and death. The ncRNAs are important regulators of important signalling pathways that affect pyroptosis and the inflammatory environment in atherosclerotic plaques. Comprehending the complex interaction between pyroptosis and non-coding RNAs (ncRNAs) offers fresh perspectives on putative therapeutic targets for ameliorating cardiovascular problems linked to atherosclerosis. The discovery of particular non-coding RNA signatures linked to the advancement of atherosclerosis could lead to the creation of novel biomarkers for risk assessment and customised treatment approaches. A thorough investigation of the regulatory networks regulated by these non-coding RNAs has been made possible by the combination of cutting-edge molecular methods and bioinformatics tools. Studying pyroptosis-related ncRNAs in detail appears to be a promising way to advance our understanding of disease pathophysiology and develop focused therapeutic methods as we work to unravel the complex molecular tapestry of atherosclerosis. This review explores the emerging significance of non-coding RNAs (ncRNAs) in the regulation of pyroptosis and their consequential impact on atherosclerosis pathology.
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Affiliation(s)
- Weam M A Khojali
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Omdurman Islamic University, Omdurman 14415, Republic of the Sudan
| | - Nasrin E Khalifa
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia; Department of Pharmaceutics, Faculty of Pharmacy, University of Khartoum, Khartoum 11115, Republic of the Sudan
| | - Farhan Alshammari
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia
| | - S Afsar
- Department of Virology, Sri Venkateswara University, Tirupathi, Andhra Pradesh 517502, India.
| | - Nayla Ahmed Mohammed Aboshouk
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail 81442, Saudi Arabia
| | - Amna Abakar Suleiman Khalifa
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail 81442, Saudi Arabia
| | - Jerlyn Apatan Enrera
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail 81442, Saudi Arabia
| | - Nancy Mohammad Elafandy
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail 81442, Saudi Arabia
| | - Randa Abdeen Husien Abdalla
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail 81442, Saudi Arabia
| | - Omar Hafiz Haj Ali
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail 81442, Saudi Arabia
| | - Rahamat Unissa Syed
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia.
| | - Potnuri Nagaraju
- Department of Pharmaceutics, Mandesh Institute of Pharmaceutical Science and Research Center, Maharashtra, India
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Yadav A, Mathan J, Dubey AK, Singh A. The Emerging Role of Non-Coding RNAs (ncRNAs) in Plant Growth, Development, and Stress Response Signaling. Noncoding RNA 2024; 10:13. [PMID: 38392968 PMCID: PMC10893181 DOI: 10.3390/ncrna10010013] [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: 12/11/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Plant species utilize a variety of regulatory mechanisms to ensure sustainable productivity. Within this intricate framework, numerous non-coding RNAs (ncRNAs) play a crucial regulatory role in plant biology, surpassing the essential functions of RNA molecules as messengers, ribosomal, and transfer RNAs. ncRNAs represent an emerging class of regulators, operating directly in the form of small interfering RNAs (siRNAs), microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs). These ncRNAs exert control at various levels, including transcription, post-transcription, translation, and epigenetic. Furthermore, they interact with each other, contributing to a variety of biological processes and mechanisms associated with stress resilience. This review primarily concentrates on the recent advancements in plant ncRNAs, delineating their functions in growth and development across various organs such as root, leaf, seed/endosperm, and seed nutrient development. Additionally, this review broadens its scope by examining the role of ncRNAs in response to environmental stresses such as drought, salt, flood, heat, and cold in plants. This compilation offers updated information and insights to guide the characterization of the potential functions of ncRNAs in plant growth, development, and stress resilience in future research.
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Affiliation(s)
- Amit Yadav
- Department of Microbiology & Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA;
| | - Jyotirmaya Mathan
- Sashi Bhusan Rath Government Autonomous Women’s College, Brahmapur 760001, India;
| | - Arvind Kumar Dubey
- Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, NE 68588, USA;
| | - Anuradha Singh
- Department of Plant, Soil and Microbial Science, Michigan State University, East Lansing, MI 48824, USA
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Li S, Zhao Y, Tan S, Li Z. Non-coding RNAs and leaf senescence: Small molecules with important roles. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108399. [PMID: 38277833 DOI: 10.1016/j.plaphy.2024.108399] [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: 11/22/2023] [Revised: 01/09/2024] [Accepted: 01/22/2024] [Indexed: 01/28/2024]
Abstract
Non-coding RNAs (ncRNAs) are a special class of functional RNA molecules that are not translated into proteins. ncRNAs have emerged as pivotal regulators of diverse developmental processes in plants. Recent investigations have revealed the association of ncRNAs with the regulation of leaf senescence, a complex and tightly regulated developmental process. However, a comprehensive review of the involvement of ncRNAs in the regulation of leaf senescence is still lacking. This manuscript aims to summarize the molecular mechanisms underlying ncRNAs-mediated leaf senescence and the potential applications of ncRNAs to manipulate the onset and progression of leaf senescence. Various classes of ncRNAs, including microRNAs (miRNAs), small interfering RNAs (siRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs), are discussed in terms of their regulatory mechanisms in leaf senescence. Furthermore, we explore the interactions between ncRNA and the key regulators of senescence, including transcription factors as well as core components in phytohormone signaling pathways. We also discuss the possible challenges and approaches related to ncRNA-mediated leaf senescence. This review contributes to a further understanding of the intricate regulatory network involving ncRNAs in leaf senescence.
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Affiliation(s)
- Shichun Li
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Yaning Zhao
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Shuya Tan
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Zhonghai Li
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China.
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8
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Graci S, Barone A. Tomato plant response to heat stress: a focus on candidate genes for yield-related traits. FRONTIERS IN PLANT SCIENCE 2024; 14:1245661. [PMID: 38259925 PMCID: PMC10800405 DOI: 10.3389/fpls.2023.1245661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024]
Abstract
Climate change and global warming represent the main threats for many agricultural crops. Tomato is one of the most extensively grown and consumed horticultural products and can survive in a wide range of climatic conditions. However, high temperatures negatively affect both vegetative growth and reproductive processes, resulting in losses of yield and fruit quality traits. Researchers have employed different parameters to evaluate the heat stress tolerance, including evaluation of leaf- (stomatal conductance, net photosynthetic rate, Fv/Fm), flower- (inflorescence number, flower number, stigma exertion), pollen-related traits (pollen germination and viability, pollen tube growth) and fruit yield per plant. Moreover, several authors have gone even further, trying to understand the plants molecular response mechanisms to this stress. The present review focused on the tomato molecular response to heat stress during the reproductive stage, since the increase of temperatures above the optimum usually occurs late in the growing tomato season. Reproductive-related traits directly affects the final yield and are regulated by several genes such as transcriptional factors, heat shock proteins, genes related to flower, flowering, pollen and fruit set, and epigenetic mechanisms involving DNA methylation, histone modification, chromatin remodelling and non-coding RNAs. We provided a detailed list of these genes and their function under high temperature conditions in defining the final yield with the aim to summarize the recent findings and pose the attention on candidate genes that could prompt on the selection and constitution of new thermotolerant tomato plant genotypes able to face this abiotic challenge.
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Affiliation(s)
| | - Amalia Barone
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Naples, Italy
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9
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Li B, Feng C, Zhang W, Sun S, Yue D, Zhang X, Yang X. Comprehensive non-coding RNA analysis reveals specific lncRNA/circRNA-miRNA-mRNA regulatory networks in the cotton response to drought stress. Int J Biol Macromol 2023; 253:126558. [PMID: 37659489 DOI: 10.1016/j.ijbiomac.2023.126558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 07/29/2023] [Accepted: 08/20/2023] [Indexed: 09/04/2023]
Abstract
Root and leaf are essential organs of plants in sensing and responding to drought stress. However, comparative knowledge of non-coding RNAs (ncRNAs) of root and leaf tissues in the regulation of drought response in cotton is limited. Here, we used deep sequencing data of leaf and root tissues of drought-resistant and drought-sensitive cotton varieties for identifying miRNAs, lncRNAs and circRNAs. A total of 1531 differentially expressed (DE) ncRNAs was identified, including 77 DE miRNAs, 1393 DE lncRNAs and 61 DE circRNAs. The tissue-specific and variety-specific competing endogenous RNA (ceRNA) networks of DE lncRNA-miRNA-mRNA response to drought were constructed. Furthermore, the novel drought-responsive lncRNA 1 (DRL1), specifically and differentially expressed in root, was verified to positively affect phenotypes of cotton seedlings under drought stress, competitively binding to miR477b with GhNAC1 and GhSCL3. In addition, we also constructed another ceRNA network consisting of 18 DE circRNAs, 26 DE miRNAs and 368 DE mRNAs. Fourteen circRNA were characterized, and a novel molecular regulatory system of circ125- miR7484b/miR7450b was proposed under drought stress. Our findings revealed the specificity of ncRNA expression in tissue- and variety-specific patterns involved in the response to drought stress, and uncovered novel regulatory pathways and potentially effective molecules in genetic improvement for crop drought resistance.
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Affiliation(s)
- Baoqi Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
| | - Cheng Feng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Wenhao Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Simin Sun
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Dandan Yue
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Xiyan Yang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
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10
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Bravo-Vázquez LA, Méndez-García A, Chamu-García V, Rodríguez AL, Bandyopadhyay A, Paul S. The applications of CRISPR/Cas-mediated microRNA and lncRNA editing in plant biology: shaping the future of plant non-coding RNA research. PLANTA 2023; 259:32. [PMID: 38153530 DOI: 10.1007/s00425-023-04303-z] [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: 05/28/2023] [Accepted: 11/25/2023] [Indexed: 12/29/2023]
Abstract
MAIN CONCLUSION CRISPR/Cas technology has greatly facilitated plant non-coding RNA (ncRNA) biology research, establishing itself as a promising tool for ncRNA functional characterization and ncRNA-mediated plant improvement. Throughout the last decade, the promising genome editing tool clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated proteins (Cas; CRISPR/Cas) has allowed unprecedented advances in the field of plant functional genomics and crop improvement. Even though CRISPR/Cas-mediated genome editing system has been widely used to elucidate the biological significance of a number of plant protein-coding genes, this technology has been barely applied in the functional analysis of those non-coding RNAs (ncRNAs) that modulate gene expression, such as microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). Nevertheless, compelling findings indicate that CRISPR/Cas-based ncRNA editing has remarkable potential for deciphering the biological roles of ncRNAs in plants, as well as for plant breeding. For instance, it has been demonstrated that CRISPR/Cas tool could overcome the challenges associated with other approaches employed in functional genomic studies (e.g., incomplete knockdown and off-target activity). Thus, in this review article, we discuss the current status and progress of CRISPR/Cas-mediated ncRNA editing in plant science in order to provide novel prospects for further assessment and validation of the biological activities of plant ncRNAs and to enhance the development of ncRNA-centered protocols for crop improvement.
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Affiliation(s)
- Luis Alberto Bravo-Vázquez
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Querétaro, Av. Epigmenio González, No. 500 Fracc. San Pablo, 76130, Querétaro, Mexico
| | - Andrea Méndez-García
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Querétaro, Av. Epigmenio González, No. 500 Fracc. San Pablo, 76130, Querétaro, Mexico
| | - Verenice Chamu-García
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, 72453, Puebla, Mexico
| | - Alma L Rodríguez
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Querétaro, Av. Epigmenio González, No. 500 Fracc. San Pablo, 76130, Querétaro, Mexico
| | - Anindya Bandyopadhyay
- International Rice Research Institute, 4031, Manila, Philippines.
- Reliance Industries Ltd., Navi Mumbai, Maharashtra, 400701, India.
| | - Sujay Paul
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Querétaro, Av. Epigmenio González, No. 500 Fracc. San Pablo, 76130, Querétaro, Mexico.
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11
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Karousi P, Samiotaki M, Makridakis M, Zoidakis J, Sideris DC, Scorilas A, Carell T, Kontos CK. 3'-tRF-Cys GCA overexpression in HEK-293 cells alters the global expression profile and modulates cellular processes and pathways. Funct Integr Genomics 2023; 23:341. [PMID: 37987851 PMCID: PMC10663186 DOI: 10.1007/s10142-023-01272-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/12/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023]
Abstract
tRNA fragments (tRFs) are small non-coding RNAs generated through specific cleavage of tRNAs and involved in various biological processes. Among the different types of tRFs, the 3'-tRFs have attracted scientific interest due to their regulatory role in gene expression. In this study, we investigated the role of 3'-tRF-CysGCA, a tRF deriving from cleavage in the T-loop of tRNACysGCA, in the regulation of gene expression in HEK-293 cells. Previous studies have shown that 3'-tRF-CysGCA is incorporated into the RISC complex and interacts with Argonaute proteins, suggesting its involvement in the regulation of gene expression. However, the general role and effect of the deregulation of 3'-tRF-CysGCA levels in human cells have not been investigated so far. To fill this gap, we stably overexpressed 3'-tRF-CysGCA in HEK-293 cells and performed transcriptomic and proteomic analyses. Moreover, we validated the interaction of this tRF with putative targets, the levels of which were found to be affected by 3'-tRF-CysGCA overexpression. Lastly, we investigated the implication of 3'-tRF-CysGCA in various pathways using extensive bioinformatics analysis. Our results indicate that 3'-tRF-CysGCA overexpression led to changes in the global gene expression profile of HEK-293 cells and that multiple cellular pathways were affected by the deregulation of the levels of this tRF. Additionally, we demonstrated that 3'-tRF-CysGCA directly interacts with thymopoietin (TMPO) transcript variant 1 (also known as LAP2α), leading to modulation of its levels. In conclusion, our findings suggest that 3'-tRF-CysGCA plays a significant role in gene expression regulation and highlight the importance of this tRF in cellular processes.
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Affiliation(s)
- Paraskevi Karousi
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15701, Athens, Greece
| | - Martina Samiotaki
- Institute for Bioinnovation, Biomedical Sciences Research Center, "Alexander Fleming", Vari, Greece
| | - Manousos Makridakis
- Center of Systems Biology, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Jerome Zoidakis
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15701, Athens, Greece
- Center of Systems Biology, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Diamantis C Sideris
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15701, Athens, Greece
| | - Andreas Scorilas
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15701, Athens, Greece
| | - Thomas Carell
- Department for Chemistry, Institute for Chemical Epigenetics, Ludwig Maximilian University of Munich, Munich, Germany
| | - Christos K Kontos
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15701, Athens, Greece.
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12
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Sheri V, Kumar M, Jaconis S, Zhang B. Antioxidant defense in cotton under environmental stresses: Unraveling the crucial role of a universal defense regulator for enhanced cotton sustainability. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 204:108141. [PMID: 37926000 DOI: 10.1016/j.plaphy.2023.108141] [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: 06/30/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 11/07/2023]
Abstract
Cotton (Gossypium spp.) is a globally significant crop that provides natural fibers for the textile industry and also an important oil and biopharmaceutical resources. However, the production of cotton faces substantial challenges due to various biotic and abiotic stress factors that can negatively impact cotton growth, yield, and fiber quality. This review offers a comprehensive overview of the effects of biotic stress factors, such as insect pests, bacterial, fungal, and viral pathogens, and nematodes, as well as abiotic stress factors, including extreme hot and cold temperature, drought, toxicity induced by heavy metal and salinity, on the antioxidant systems in cotton. We discuss the crucial antioxidants, such as glutathione, proline, and phenolics, and highlight major antioxidant enzymes, including ascorbate peroxidase (APX), superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and glutathione reductase (GR), and their roles in cotton's response to these stress factors. Furthermore, we explore the potential mechanisms and the crosstalk between different stress factors signaling pathways. We also examine the implications of stress-induced changes in antioxidant levels and enzyme activities for cotton productivity and breeding strategies. Additionally, we shed light on the unanswered questions, research gaps, and future perspectives in this field, paving the way for further investigations to enhance our understanding of cotton's antioxidant defenses and develop novel strategies for improving cotton stress tolerance and yield stability.
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Affiliation(s)
- Vijay Sheri
- Department of Biology, East Carolina University, Greenville, 27858, USA
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, Mumbai, India
| | - Susan Jaconis
- Agricultural & Environmental Research Department, Cotton Incorporated, Cary, NC, 27513, USA
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, 27858, USA.
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13
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Liu L, Heidecker M, Depuydt T, Manosalva Perez N, Crespi M, Blein T, Vandepoele K. Transcription factors KANADI 1, MYB DOMAIN PROTEIN 44, and PHYTOCHROME INTERACTING FACTOR 4 regulate long intergenic noncoding RNAs expressed in Arabidopsis roots. PLANT PHYSIOLOGY 2023; 193:1933-1953. [PMID: 37345955 DOI: 10.1093/plphys/kiad360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/23/2023]
Abstract
Thousands of long intergenic noncoding RNAs (lincRNAs) have been identified in plant genomes. While some lincRNAs have been characterized as important regulators in different biological processes, little is known about the transcriptional regulation for most plant lincRNAs. Through the integration of 8 annotation resources, we defined 6,599 high-confidence lincRNA loci in Arabidopsis (Arabidopsis thaliana). For lincRNAs belonging to different evolutionary age categories, we identified major differences in sequence and chromatin features, as well as in the level of conservation and purifying selection acting during evolution. Spatiotemporal gene expression profiles combined with transcription factor (TF) chromatin immunoprecipitation (ChIP) data were used to construct a TF-lincRNA regulatory network containing 2,659 lincRNAs and 15,686 interactions. We found that properties characterizing lincRNA expression, conservation, and regulation differ between plants and animals. Experimental validation confirmed the role of 3 TFs, KANADI 1, MYB DOMAIN PROTEIN 44, and PHYTOCHROME INTERACTING FACTOR 4, as key regulators controlling root-specific lincRNA expression, demonstrating the predictive power of our network. Furthermore, we identified 58 lincRNAs, regulated by these TFs, showing strong root cell type-specific expression or chromatin accessibility, which are linked with genome-wide association studies genetic associations related to root system development and growth. The multilevel genome-wide characterization covering chromatin state information, promoter conservation, and chromatin immunoprecipitation-based TF binding, for all detectable lincRNAs across 769 expression samples, permits rapidly defining the biological context and relevance of Arabidopsis lincRNAs through regulatory networks.
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Affiliation(s)
- Li Liu
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Michel Heidecker
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université Evry, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris Cité, 91190 Gif-sur-Yvette, France
| | - Thomas Depuydt
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Nicolas Manosalva Perez
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Martin Crespi
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université Evry, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris Cité, 91190 Gif-sur-Yvette, France
| | - Thomas Blein
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université Evry, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris Cité, 91190 Gif-sur-Yvette, France
| | - Klaas Vandepoele
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
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14
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Yadav B, Majhi A, Phagna K, Meena MK, Ram H. Negative regulators of grain yield and mineral contents in rice: potential targets for CRISPR-Cas9-mediated genome editing. Funct Integr Genomics 2023; 23:317. [PMID: 37837547 DOI: 10.1007/s10142-023-01244-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/16/2023]
Abstract
Rice is a major global staple food crop, and improving its grain yield and nutritional quality has been a major thrust research area since last decades. Yield and nutritional quality are complex traits which are controlled by multiple signaling pathways. Sincere efforts during past decades of research have identified several key genetic and molecular regulators that governed these complex traits. The advent of clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9)-mediated gene knockout approaches has accelerated the development of improved varieties; however, finding out target gene with negative regulatory function in particular trait without giving any pleiotropic effect remains a challenge. Here, we have reviewed past and recent literature and identified important negative regulators of grain yield and mineral contents which could be potential targets for CRISPR-Cas9-mediated gene knockout. Additionally, we have also compiled a list of microRNAs (miRNAs), which target positive regulators of grain yield, plant stress tolerance, and grain mineral contents. Knocking out these miRNAs could help to increase expression of such positive regulators and thus improve the plant trait. The knowledge presented in this review would help to further accelerate the CRISPR-Cas9-mediated trait improvement in rice.
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Affiliation(s)
- Banita Yadav
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Ashis Majhi
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Kanika Phagna
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Mukesh Kumar Meena
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067, India.
| | - Hasthi Ram
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, 110067, India.
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15
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Chen YH, Lu J, Yang X, Huang LC, Zhang CQ, Liu QQ, Li QF. Gene editing of non-coding regulatory DNA and its application in crop improvement. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:6158-6175. [PMID: 37549968 DOI: 10.1093/jxb/erad313] [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: 02/23/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
The development of the clustered regularly interspaced short palindromic repeats/CRISPR-associated protein (CRISPR/Cas) system has provided precise and efficient strategies to edit target genes and generate transgene-free crops. Significant progress has been made in the editing of protein-coding genes; however, studies on the editing of non-coding DNA with regulatory roles lags far behind. Non-coding regulatory DNAs, including those which can be transcribed into long non-coding RNAs (lncRNAs), and miRNAs, together with cis-regulatory elements (CREs), play crucial roles in regulating plant growth and development. Therefore, the combination of CRISPR/Cas technology and non-coding regulatory DNA has great potential to generate novel alleles that affect various agronomic traits of crops, thus providing valuable genetic resources for crop breeding. Herein, we review recent advances in the roles of non-coding regulatory DNA, attempts to edit non-coding regulatory DNA for crop improvement, and potential application of novel editing tools in modulating non-coding regulatory DNA. Finally, the existing problems, possible solutions, and future applications of gene editing of non-coding regulatory DNA in modern crop breeding practice are also discussed.
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Affiliation(s)
- Yu-Hao Chen
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Jun Lu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Xia Yang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Li-Chun Huang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Chang-Quan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Qiao-Quan Liu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Qian-Feng Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu, China
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16
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Bhattacharjee S, Bhowmick R, Paul K, Venkat Raman K, Jaiswal S, Tilgam J, Saakre M, Kumari P, Baaniya M, Vijayan J, Sreevathsa R, Pattanayak D. Identification, characterization, and comprehensive expression profiling of floral master regulators in pigeon pea (Cajanus cajan [L.] Millspaugh). Funct Integr Genomics 2023; 23:311. [PMID: 37751043 DOI: 10.1007/s10142-023-01236-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/04/2023] [Accepted: 09/15/2023] [Indexed: 09/27/2023]
Abstract
Pigeon pea is an important protein-rich pulse crop. Identification of flowering master regulators in pigeon pea is highly imperative as indeterminacy and late flowering are impediments towards yield improvement. A genome-wide analysis was performed to explore flowering orthologous groups in pigeon pea. Among the 412 floral orthologs identified in pigeon pea, 148 genes belong to the meristem identity, photoperiod-responsive, and circadian clock-associated ortholog groups. Our comparative genomics study revealed purifying selection pressures (ka/ks) on floral orthologs, and duplication patterns and evolution through synteny with other model species. Phylogenetic analysis of floral genes substantiated a connection between pigeon pea plant architecture and flowering time as all the PEBP domain-containing genes belong to meristem identity floral networks of pigeon pea. Expression profiling of eleven major orthologs in contrasting determinate and indeterminate genotypes indicated that these orthologs might be involved in flowering regulation. Expression of floral inducer, FT, and floral repressor, TFL1, was non-comparable in indeterminate genotypes across all the developmental stages of pigeon pea. However, dynamic FT/TFL1 expression ratio detected in all tissues of both the genotypes suggested their role in floral transition. One TFL1 ortholog having high sequence conserveness across pigeon pea genotypes showed differential expression indicating genotype-dependent regulation of this ortholog. Presence of conserved 6mA-methylation patterns in light-responsive elements and in other cis-regulatory elements of FT and TFL1 across different plant genotypes indicated possible involvement of epigenetic regulation in flowering.
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Affiliation(s)
- Sougata Bhattacharjee
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Rakesh Bhowmick
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata, India
| | - Krishnayan Paul
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - K Venkat Raman
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
| | - Sandeep Jaiswal
- ICAR Research Complex for North Eastern Hill Region, Barapani, Meghalaya, India
| | - Jyotsana Tilgam
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Manjesh Saakre
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
| | - Priyanka Kumari
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Mahi Baaniya
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Joshitha Vijayan
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
| | - Rohini Sreevathsa
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
| | - Debasis Pattanayak
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India.
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17
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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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18
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Durut N, Kornienko AE, Schmidt HA, Lettner N, Donà M, Nordborg M, Mittelsten Scheid O. Long noncoding RNAs contribute to DNA damage resistance in Arabidopsis thaliana. Genetics 2023; 225:iyad135. [PMID: 37467473 PMCID: PMC10471225 DOI: 10.1093/genetics/iyad135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/14/2023] [Accepted: 07/16/2023] [Indexed: 07/21/2023] Open
Abstract
Efficient repair of DNA lesions is essential for the faithful transmission of genetic information between somatic cells and for genome integrity across generations. Plants have multiple, partially redundant, and overlapping DNA repair pathways, probably due to the less constricted germline and the inevitable exposure to light including higher energy wavelengths. Many proteins involved in DNA repair and their mode of actions are well described. In contrast, a role for DNA damage-associated RNA components, evident from many other organisms, is less well understood. Here, we have challenged young Arabidopsis thaliana plants with two different types of genotoxic stress and performed de novo assembly and transcriptome analysis. We identified three long noncoding RNAs (lncRNAs) that are lowly or not expressed under regular conditions but up-regulated or induced by DNA damage. We generated CRISPR/Cas deletion mutants and found that the absence of the lncRNAs impairs the recovery capacity of the plants from genotoxic stress. The genetic loci are highly conserved among world-wide distributed Arabidopsis accessions and within related species in the Brassicaceae group. Together, these results suggest that the lncRNAs have a conserved function in connection with DNA damage and provide a basis for mechanistic analysis of their role.
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Affiliation(s)
- Nathalie Durut
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter (VBC), Dr. Bohr Gasse 3, 1030 Vienna, Austria
| | - Aleksandra E Kornienko
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter (VBC), Dr. Bohr Gasse 3, 1030 Vienna, Austria
| | - Heiko A Schmidt
- Center for Integrative Bioinformatics Vienna (CIBIV), Max Perutz Labs, University of Vienna and Medical University of Vienna, Vienna BioCenter (VBC), Dr. Bohr Gasse 9, 1030 Vienna, Austria
| | - Nicole Lettner
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter (VBC), Dr. Bohr Gasse 3, 1030 Vienna, Austria
| | - Mattia Donà
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter (VBC), Dr. Bohr Gasse 3, 1030 Vienna, Austria
| | - Magnus Nordborg
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter (VBC), Dr. Bohr Gasse 3, 1030 Vienna, Austria
| | - Ortrun Mittelsten Scheid
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter (VBC), Dr. Bohr Gasse 3, 1030 Vienna, Austria
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19
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Boutet G, Lavaud C, Lesné A, Miteul H, Pilet-Nayel ML, Andrivon D, Lejeune-Hénaut I, Baranger A. Five Regions of the Pea Genome Co-Control Partial Resistance to D. pinodes, Tolerance to Frost, and Some Architectural or Phenological Traits. Genes (Basel) 2023; 14:1399. [PMID: 37510304 PMCID: PMC10379203 DOI: 10.3390/genes14071399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/08/2023] [Accepted: 06/14/2023] [Indexed: 07/30/2023] Open
Abstract
Evidence for reciprocal links between plant responses to biotic or abiotic stresses and architectural and developmental traits has been raised using approaches based on epidemiology, physiology, or genetics. Winter pea has been selected for years for many agronomic traits contributing to yield, taking into account architectural or phenological traits such as height or flowering date. It remains nevertheless particularly susceptible to biotic and abiotic stresses, among which Didymella pinodes and frost are leading examples. The purpose of this study was to identify and resize QTL localizations that control partial resistance to D. pinodes, tolerance to frost, and architectural or phenological traits on pea dense genetic maps, considering how QTL colocalizations may impact future winter pea breeding. QTL analysis revealed five metaQTLs distributed over three linkage groups contributing to both D. pinodes disease severity and frost tolerance. At these loci, the haplotypes of alleles increasing both partial resistance to D. pinodes and frost tolerance also delayed the flowering date, increased the number of branches, and/or decreased the stipule length. These results question both the underlying mechanisms of the joint control of biotic stress resistance, abiotic stress tolerance, and plant architecture and phenology and the methods of marker-assisted selection optimizing stress control and productivity in winter pea breeding.
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Affiliation(s)
- Gilles Boutet
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35653 Le Rheu, France
| | - Clément Lavaud
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35653 Le Rheu, France
| | - Angélique Lesné
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35653 Le Rheu, France
| | - Henri Miteul
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35653 Le Rheu, France
| | | | - Didier Andrivon
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35653 Le Rheu, France
| | - Isabelle Lejeune-Hénaut
- BioEcoAgro Joint Research Unit, INRAE, Université de Lille, Université de Liège, Université de Picardie Jules Verne, 80200 Estrées-Mons, France
| | - Alain Baranger
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35653 Le Rheu, France
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20
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Balyan S, Kansal S, Jajo R, Behere PR, Chatterjee R, Raghuvanshi S. Delineating the tissue-mediated drought stress governed tuning of conserved miR408 and its targets in rice. Funct Integr Genomics 2023; 23:187. [PMID: 37243818 DOI: 10.1007/s10142-023-01111-2] [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: 12/30/2022] [Revised: 05/13/2023] [Accepted: 05/16/2023] [Indexed: 05/29/2023]
Abstract
Engineering drought tolerance in rice needs to focus on regulators that enhance tolerance while boosting plant growth and vigor. The present study delineated the concealed function and tissue-mediated interplay of the miR408/target module in imparting drought stress tolerance in rice. The plant miR408 family comprises three dominant mature forms (21 nt), including a distinct monocot variant (F-7 with 5' C) and is divided into six groups. miR408 majorly cleaves genes belonging to the blue copper protein in addition to several other species-specific targets in plants. Comparative sequence analysis in 4726 rice accessions identified 22 sequence variants (SNP and InDELs) in its promoter (15) and pre-miR408 region. Haplotype analysis of the sequence variants indicated eight haplotypes (three: Japonica-specific and five: Indica-specific) of the miR408 promoter. In drought-tolerant Nagina 22, miR408 follows flag leaf preferential expression. Under drought conditions, its levels are upregulated in flag leaf and roots which seems to be regulated by a differential fraction of methylated cytosines (mCs) in the precursor region. The active pool of miR408 regulated targets under control and drought conditions is impacted by the tissue type. Comparative expression analysis of the miR408/target module under different sets of conditions features 83 targets exhibiting antagonistic expression in rice, out of which 12 genes, including four PLANTACYANINS (OsUCL6, 7, 9 and 30), PIRIN, OsLPR1, OsCHUP1, OsDOF12, OsBGLU1, glycine-rich cell wall gene, OsDUT, and OsERF7, are among the high confidence targets. Further, overexpression of MIR408 in drought-sensitive rice cultivar (PB1) leads to the massive enhancement of vegetative growth in rice with improved ETR and Y(II) and enhanced dehydration stress tolerance. The above results suggest that miR408 is likely to act as a positive regulator of growth and vigor, as well as dehydration stress, making it a potential candidate for engineering drought tolerance in rice.
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Affiliation(s)
- Sonia Balyan
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Shivani Kansal
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Ringyao Jajo
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Pratyush Rajiv Behere
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Rishika Chatterjee
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Saurabh Raghuvanshi
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India.
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21
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Samelak-Czajka A, Wojciechowski P, Marszalek-Zenczak M, Figlerowicz M, Zmienko A. Differences in the intraspecies copy number variation of Arabidopsis thaliana conserved and nonconserved miRNA genes. Funct Integr Genomics 2023; 23:120. [PMID: 37036577 PMCID: PMC10085913 DOI: 10.1007/s10142-023-01043-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 04/11/2023]
Abstract
MicroRNAs (miRNAs) regulate gene expression by RNA interference mechanism. In plants, miRNA genes (MIRs) which are grouped into conserved families, i.e. they are present among the different plant taxa, are involved in the regulation of many developmental and physiological processes. The roles of the nonconserved MIRs-which are MIRs restricted to one plant family, genus, or even species-are less recognized; however, many of them participate in the responses to biotic and abiotic stresses. Both over- and underproduction of miRNAs may influence various biological processes. Consequently, maintaining intracellular miRNA homeostasis seems to be crucial for the organism. Deletions and duplications in the genomic sequence may alter gene dosage and/or activity. We evaluated the extent of copy number variations (CNVs) among Arabidopsis thaliana (Arabidopsis) MIRs in over 1000 natural accessions, using population-based analysis of the short-read sequencing data. We showed that the conserved MIRs were unlikely to display CNVs and their deletions were extremely rare, whereas nonconserved MIRs presented moderate variation. Transposon-derived MIRs displayed exceptionally high diversity. Conversely, MIRs involved in the epigenetic control of transposons reactivated during development were mostly invariable. MIR overlap with the protein-coding genes also limited their variability. At the expression level, a higher rate of nonvariable, nonconserved miRNAs was detectable in Col-0 leaves, inflorescence, and siliques compared to nonconserved variable miRNAs, although the expression of both groups was much lower than that of the conserved MIRs. Our data indicate that CNV rate of Arabidopsis MIRs is related with their age, function, and genomic localization.
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Affiliation(s)
- Anna Samelak-Czajka
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland
| | - Pawel Wojciechowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland
- Institute of Computing Science, Faculty of Computing and Telecommunications, Poznan University of Technology, 60-965, Poznan, Poland
| | | | - Marek Figlerowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland.
| | - Agnieszka Zmienko
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland.
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22
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Bravo-Vázquez LA, Angulo-Bejarano PI, Bandyopadhyay A, Sharma A, Paul S. Regulatory roles of noncoding RNAs in callus induction and plant cell dedifferentiation. PLANT CELL REPORTS 2023; 42:689-705. [PMID: 36753041 DOI: 10.1007/s00299-023-02992-0] [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: 11/11/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Plant regulatory noncoding RNAs (ncRNAs) have emerged as key modulators of gene expression during callus induction. Their further study may promote the design of innovative plant tissue culture protocols. The use of plants by humans has recently taken on a new and expanding insight due to the advent of genetic engineering technologies. In this context, callus cultures have shown remarkable potential for synthesizing valuable biomolecules, crop improvement, plant micropropagation, and biodiversity preservation. A crucial stage in callus production is the conversion of somatic cells into totipotent cells; compelling evidence indicates that stress factors, transcriptional regulators, and plant hormones can trigger this biological event. Besides, posttranscriptional regulators of gene expression might be essential participants in callus induction. However, research related to the analysis of noncoding RNAs (ncRNAs) that modulate callogenesis and plant cell dedifferentiation in vitro is still at an early stage. During the last decade, some relevant studies have enlightened the fact that different classes of ncRNAs, such as microRNAs (miRNAs), small interfering RNAs (siRNAs), and long noncoding RNAs (lncRNAs) are implicated in plant cell dedifferentiation through regulating the expression levels of diverse gene targets. Hence, understanding the molecular relevance of these ncRNAs in the aforesaid biological processes might represent a promising source of new biotechnological approaches for callus culture and plant improvement. In this current work, we review the experimental evidence regarding the prospective roles of ncRNAs in callus induction and plant cell dedifferentiation to promote this field of study.
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Affiliation(s)
- Luis Alberto Bravo-Vázquez
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc. San Pablo, 76130, Queretaro, Mexico
| | - Paola Isabel Angulo-Bejarano
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc. San Pablo, 76130, Queretaro, Mexico
| | - Anindya Bandyopadhyay
- International Rice Research Institute, 4031, Manila, Philippines
- Reliance Industries Ltd., Navi Mumbai, 400701, India
| | - Ashutosh Sharma
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc. San Pablo, 76130, Queretaro, Mexico.
| | - Sujay Paul
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc. San Pablo, 76130, Queretaro, Mexico.
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23
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Pradhan UK, Meher PK, Naha S, Rao AR, Gupta A. ASLncR: a novel computational tool for prediction of abiotic stress-responsive long non-coding RNAs in plants. Funct Integr Genomics 2023; 23:113. [PMID: 37000299 DOI: 10.1007/s10142-023-01040-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 04/01/2023]
Abstract
Abiotic stresses are detrimental to plant growth and development and have a major negative impact on crop yields. A growing body of evidence indicates that a large number of long non-coding RNAs (lncRNAs) are key to many abiotic stress responses. Thus, identifying abiotic stress-responsive lncRNAs is essential in crop breeding programs in order to develop crop cultivars resistant to abiotic stresses. In this study, we have developed the first machine learning-based computational model for predicting abiotic stress-responsive lncRNAs. The lncRNA sequences which were responsive and non-responsive to abiotic stresses served as the two classes of the dataset for binary classification using the machine learning algorithms. The training dataset was created using 263 stress-responsive and 263 non-stress-responsive sequences, whereas the independent test set consists of 101 sequences from both classes. As the machine learning model can adopt only the numeric data, the Kmer features ranging from sizes 1 to 6 were utilized to represent lncRNAs in numeric form. To select important features, four different feature selection strategies were utilized. Among the seven learning algorithms, the support vector machine (SVM) achieved the highest cross-validation accuracy with the selected feature sets. The observed 5-fold cross-validation accuracy, AU-ROC, and AU-PRC were found to be 68.84, 72.78, and 75.86%, respectively. Furthermore, the robustness of the developed model (SVM with the selected feature) was evaluated using an independent test dataset, where the overall accuracy, AU-ROC, and AU-PRC were found to be 76.23, 87.71, and 88.49%, respectively. The developed computational approach was also implemented in an online prediction tool ASLncR accessible at https://iasri-sg.icar.gov.in/aslncr/ . The proposed computational model and the developed prediction tool are believed to supplement the existing effort for the identification of abiotic stress-responsive lncRNAs in plants.
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Affiliation(s)
- Upendra Kumar Pradhan
- Division of Statistical Genetics, ICAR-Indian Agricultural Statistics Research Institute, PUSA, New Delhi, 110012, India
| | - Prabina Kumar Meher
- Division of Statistical Genetics, ICAR-Indian Agricultural Statistics Research Institute, PUSA, New Delhi, 110012, India.
| | - Sanchita Naha
- Division of Computer Applications, ICAR-Indian Agricultural Statistics Research Institute, PUSA, New Delhi, 110012, India
| | | | - Ajit Gupta
- Division of Statistical Genetics, ICAR-Indian Agricultural Statistics Research Institute, PUSA, New Delhi, 110012, India
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24
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Nieto-Hernández J, Arenas-Huertero C, Ibarra-Laclette E. LncRNA-encoded peptides: the case of the lncRNA gene located downstream of EIN2. Funct Integr Genomics 2023; 23:108. [PMID: 36991241 DOI: 10.1007/s10142-023-01038-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/31/2023]
Affiliation(s)
- Jesús Nieto-Hernández
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, 78290, San Luis Potosí, México
| | | | - Enrique Ibarra-Laclette
- Red de Estudios Moleculares Avanzados (REMAV), Instituto de Ecología, A.C. (INECOL), Xalapa, 91073, Veracruz, México.
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25
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Halder K, Chaudhuri A, Abdin MZ, Datta A. Tweaking the Small Non-Coding RNAs to Improve Desirable Traits in Plant. Int J Mol Sci 2023; 24:ijms24043143. [PMID: 36834556 PMCID: PMC9966754 DOI: 10.3390/ijms24043143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 02/09/2023] Open
Abstract
Plant transcriptome contains an enormous amount of non-coding RNAs (ncRNAs) that do not code for proteins but take part in regulating gene expression. Since their discovery in the early 1990s, much research has been conducted to elucidate their function in the gene regulatory network and their involvement in plants' response to biotic/abiotic stresses. Typically, 20-30 nucleotide-long small ncRNAs are a potential target for plant molecular breeders because of their agricultural importance. This review summarizes the current understanding of three major classes of small ncRNAs: short-interfering RNAs (siRNAs), microRNA (miRNA), and transacting siRNAs (tasiRNAs). Furthermore, their biogenesis, mode of action, and how they have been utilized to improve crop productivity and disease resistance are discussed here.
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Affiliation(s)
- Koushik Halder
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
- Centre for Transgenic Plant Development, Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Abira Chaudhuri
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
- Correspondence: (A.C.); (A.D.); Tel.: +91-1126742750 or +91-1126735119 (A.D.)
| | - Malik Z. Abdin
- Centre for Transgenic Plant Development, Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Asis Datta
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
- Correspondence: (A.C.); (A.D.); Tel.: +91-1126742750 or +91-1126735119 (A.D.)
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26
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Cadavid IC, Balbinott N, Margis R. Beyond transcription factors: more regulatory layers affecting soybean gene expression under abiotic stress. Genet Mol Biol 2023; 46:e20220166. [PMID: 36706026 PMCID: PMC9881580 DOI: 10.1590/1678-4685-gmb-2022-0166] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 11/18/2022] [Indexed: 01/28/2023] Open
Abstract
Abiotic stresses such as nutritional imbalance, salt, light intensity, and high and low temperatures negatively affect plant growth and development. Through the course of evolution, plants developed multiple mechanisms to cope with environmental variations, such as physiological, morphological, and molecular adaptations. Epigenetic regulation, transcription factor activity, and post-transcriptional regulation operated by RNA molecules are mechanisms associated with gene expression regulation under stress. Epigenetic regulation, including histone and DNA covalent modifications, triggers chromatin remodeling and changes the accessibility of transcription machinery leading to alterations in gene activity and plant homeostasis responses. Soybean is a legume widely produced and whose productivity is deeply affected by abiotic stresses. Many studies explored how soybean faces stress to identify key elements and improve productivity through breeding and genetic engineering. This review summarizes recent progress in soybean gene expression regulation through epigenetic modifications and circRNAs pathways, and points out the knowledge gaps that are important to study by the scientific community. It focuses on epigenetic factors participating in soybean abiotic stress responses, and chromatin modifications in response to stressful environments and draws attention to the regulatory potential of circular RNA in post-transcriptional processing.
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Affiliation(s)
- Isabel Cristina Cadavid
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Programa de Pós-graduação em Biologia Celular e Molecular (PPGBCM), Porto Alegre, Brazil
| | - Natalia Balbinott
- Universidade Federal do Rio Grande do Sul, Departamento de Genética, Programa de Pós-graduação em Genética e Biologia Molecular (PPGBM), Porto Alegre, Brazil
| | - Rogerio Margis
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Programa de Pós-graduação em Biologia Celular e Molecular (PPGBCM), Porto Alegre, Brazil.,Universidade Federal do Rio Grande do Sul, Departamento de Genética, Programa de Pós-graduação em Genética e Biologia Molecular (PPGBM), Porto Alegre, Brazil.,Universidade Federal do Rio Grande do Sul, Departamento de Biofisica, Porto Alegre, Brazil
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27
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Raval M, Mishra S, Tiwari AK. Epigenetic regulons in Alzheimer's disease. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 198:185-247. [DOI: 10.1016/bs.pmbts.2023.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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28
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Cordeiro D, Canhoto J, Correia S. Regulatory non-coding RNAs: Emerging roles during plant cell reprogramming and in vitro regeneration. FRONTIERS IN PLANT SCIENCE 2022; 13:1049631. [PMID: 36438127 PMCID: PMC9684189 DOI: 10.3389/fpls.2022.1049631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Plant regeneration is a well-known capacity of plants occurring either in vivo or in vitro. This potential is the basis for plant micropropagation and genetic transformation as well as a useful system to analyse different aspects of plant development. Recent studies have proven that RNA species with no protein-coding capacity are key regulators of cellular function and essential for cell reprogramming. In this review, the current knowledge on the role of several ncRNAs in plant regeneration processes is summarized, with a focus on cell fate reprogramming. Moreover, the involvement/impact of microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and small-interfering RNAs (siRNAs) in the regulatory networks of cell dedifferentiation, proliferation and differentiation is also analysed. A deeper understanding of plant ncRNAs in somatic cell reprogramming will allow a better modulation of in vitro regeneration processes such as organogenesis and somatic embryogenesis.
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29
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Wang M, Zhang Y, Chang W, Zhang L, Syrigos KN, Li P. Noncoding RNA-mediated regulation of pyroptotic cell death in cancer. Front Oncol 2022; 12:1015587. [PMID: 36387211 PMCID: PMC9659888 DOI: 10.3389/fonc.2022.1015587] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/18/2022] [Indexed: 07/30/2023] Open
Abstract
Pyroptosis is a newly discovered form of programmed cell death, which is manifested by DNA fragmentation, cell swelling, cell membrane rupture and leakage of cell contents. Previous studies have demonstrated that pyroptosis is tightly associated with the initiation and development of various cancers, whereas the molecular mechanisms underlying pyroptosis remain obscure. Noncoding RNAs (ncRNAs) are a type of heterogeneous transcripts that are broadly expressed in mammalian cells. Owing to their potency of regulating gene expression, ncRNAs play essential roles in physiological and pathological processes. NcRNAs are increasingly acknowledged as important regulators of the pyroptosis process. Importantly, the crosstalk between ncRNAs and pyroptosis affects various hallmarks of cancer, including cell growth, survival, metastasis and therapeutic resistance. The study of the involvement of pyroptosis-associated ncRNAs in cancer pathobiology has become a hot area in recent years, while there are limited reviews on this topic. Herein, we provide an overview of the complicated roles of ncRNAs, mainly including microRNAs (miRNAs), long noncoding RNAs (lncRNAs) and circular RNAs (circRNAs), in modulating pyroptosis, with a focus on the underlying mechanisms of the ncRNA-pyroptosis axis in cancer pathogenesis. Finally, we discuss the potential applications and challenges of exploiting pyroptosis-regulating ncRNAs as molecular biomarkers and therapeutic targets in cancer.
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Affiliation(s)
- Man Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Wenguang Chang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Lei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Konstantinos N. Syrigos
- Third Department of Internal Medicine and Laboratory, National & Kapodistrian University of Athens, Athens, Greece
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
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30
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Ali S, Khan N, Tang Y. Epigenetic marks for mitigating abiotic stresses in plants. JOURNAL OF PLANT PHYSIOLOGY 2022; 275:153740. [PMID: 35716656 DOI: 10.1016/j.jplph.2022.153740] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 03/02/2022] [Accepted: 05/29/2022] [Indexed: 06/15/2023]
Abstract
Abiotic stressors are one of the major factors affecting agricultural output. Plants have evolved adaptive systems to respond appropriately to various environmental cues. These responses can be accomplished by modulating or fine-tuning genetic and epigenetic regulatory mechanisms. Understanding the response of plants' molecular features to abiotic stress is a priority in the current period of continued environmental changes. Epigenetic modifications are necessary that control gene expression by changing chromatin status and recruiting various transcription regulators. The present study summarized the current knowledge on epigenetic modifications concerning plant responses to various environmental stressors. The functional relevance of epigenetic marks in regulating stress tolerance has been revealed, and epigenetic changes impact the effector genes. This study looks at the epigenetic mechanisms that govern plant abiotic stress responses, especially DNA methylation, histone methylation/acetylation, chromatin remodeling, and various metabolites. Plant breeders will benefit from a thorough understanding of these processes to create alternative crop improvement approaches. Genome editing with clustered regularly interspaced short palindromic repeat/CRISPR-associated proteins (CRISPR/Cas) provides genetic tools to make agricultural genetic engineering more sustainable and publicly acceptable.
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Affiliation(s)
- Shahid Ali
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Longhua Institute of Innovative Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
| | - Naeem Khan
- Department of Agronomy, Institute of Food and Agricultural Sciences, University of Florida, FL, 32611, USA
| | - Yulin Tang
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Longhua Institute of Innovative Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.
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31
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Mazurier M, Drouaud J, Bahrman N, Rau A, Lejeune-Hénaut I, Delbreil B, Legrand S. Integrated sRNA-seq and RNA-seq Analyses Reveal a microRNA Regulation Network Involved in Cold Response in Pisum sativum L. Genes (Basel) 2022; 13:1119. [PMID: 35885902 PMCID: PMC9322779 DOI: 10.3390/genes13071119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/14/2022] [Accepted: 06/20/2022] [Indexed: 12/04/2022] Open
Abstract
(1) Background: Cold stress affects growth and development in plants and is a major environmental factor that decreases productivity. Over the past two decades, the advent of next generation sequencing (NGS) technologies has opened new opportunities to understand the molecular bases of stress resistance by enabling the detection of weakly expressed transcripts and the identification of regulatory RNAs of gene expression, including microRNAs (miRNAs). (2) Methods: In this study, we performed time series sRNA and mRNA sequencing experiments on two pea (Pisum sativum L., Ps) lines, Champagne frost-tolerant and Térèse frost-sensitive, during a low temperature treatment versus a control condition. (3) Results: An integrative analysis led to the identification of 136 miRNAs and a regulation network composed of 39 miRNA/mRNA target pairs with discordant expression patterns. (4) Conclusions: Our findings indicate that the cold response in pea involves 11 miRNA families as well as their target genes related to antioxidative and multi-stress defense mechanisms and cell wall biosynthesis.
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Affiliation(s)
- Mélanie Mazurier
- BioEcoAgro Joint Research Unit, Université de Lille, INRAE, Université de Liège, Université de Picardie Jules Verne, 59000 Lille, France; (M.M.); (N.B.); (B.D.)
| | - Jan Drouaud
- BioEcoAgro Joint Research Unit, INRAE, Université de Lille, Université de Liège, Université de Picardie Jules Verne, 80200 Estrées-Mons, France; (J.D.); (A.R.); (I.L.-H.)
| | - Nasser Bahrman
- BioEcoAgro Joint Research Unit, Université de Lille, INRAE, Université de Liège, Université de Picardie Jules Verne, 59000 Lille, France; (M.M.); (N.B.); (B.D.)
- BioEcoAgro Joint Research Unit, INRAE, Université de Lille, Université de Liège, Université de Picardie Jules Verne, 80200 Estrées-Mons, France; (J.D.); (A.R.); (I.L.-H.)
| | - Andrea Rau
- BioEcoAgro Joint Research Unit, INRAE, Université de Lille, Université de Liège, Université de Picardie Jules Verne, 80200 Estrées-Mons, France; (J.D.); (A.R.); (I.L.-H.)
- Université Paris-Saclay, AgroParisTech, INRAE, GABI, 78350 Jouy-en-Josas, France
| | - Isabelle Lejeune-Hénaut
- BioEcoAgro Joint Research Unit, INRAE, Université de Lille, Université de Liège, Université de Picardie Jules Verne, 80200 Estrées-Mons, France; (J.D.); (A.R.); (I.L.-H.)
| | - Bruno Delbreil
- BioEcoAgro Joint Research Unit, Université de Lille, INRAE, Université de Liège, Université de Picardie Jules Verne, 59000 Lille, France; (M.M.); (N.B.); (B.D.)
| | - Sylvain Legrand
- Univ. Lille, CNRS, UMR 8198—Evo-Eco-Paleo, 59000 Lille, France
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32
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Integrated SMRT and Illumina Sequencing Provide New Insights into Crocin Biosynthesis of Gardenia jasminoides. Int J Mol Sci 2022; 23:ijms23116321. [PMID: 35683000 PMCID: PMC9181021 DOI: 10.3390/ijms23116321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/04/2022] [Accepted: 06/04/2022] [Indexed: 02/04/2023] Open
Abstract
Crocins are valuable bioactive components of gardenia fruit, and their biosynthesis and accumulation have attracted widespread interest. Studies have investigated the biosynthesis and accumulation of crocin based on Illumina sequencing, but there is a lack of reports based on full-length transcriptome sequencing. Utilising SMRT sequencing and high-performance liquid chromatography (HPLC), we explored crocin biosynthesis and accumulation in the fruit of Gardenia jasminoides. HPLC analysis showed that crocins specifically exist in fruit and that the content of crocins increases gradually during fruit development. SMRT sequencing generated 46,715 high-quality full-length isoforms, including 5230 novel isoforms that are not present in the G. jasminoides genome. Furthermore, a total of 46 genes and 91 lncRNAs were involved in the biosynthesis and accumulation of crocin. The qRT-PCR indicated that genes involved in crocin biosynthesis reached a peak in the NOV stage. These findings contributed to our understanding of crocin biosynthesis and accumulation.
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Li L, Chen G, Yuan M, Guo S, Wang Y, Sun J. CsbZIP2-miR9748-CsNPF4.4 Module Mediates High Temperature Tolerance of Cucumber Through Jasmonic Acid Pathway. FRONTIERS IN PLANT SCIENCE 2022; 13:883876. [PMID: 35574100 PMCID: PMC9096661 DOI: 10.3389/fpls.2022.883876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/12/2022] [Indexed: 06/02/2023]
Abstract
High temperature stress seriously affects the growth of cucumber seedlings, and even leads to a decline in yield and quality. miRNAs have been shown to be involved in regulating the response to stress in plants, but little is known about its effects on cucumber high temperature stress tolerance. Here, we found that high temperature stress induced the expression of miR9748 in cucumber. Overexpression of cucumber miR9748 in Arabidopsis improved high temperature tolerance. Transcriptome analysis revealed that miR9748 might mediate high temperature tolerance through plant hormone signal pathway. 5' RNA ligase-mediated rapid amplification of cDNA ends (5' RLM-RACE) and transient transformation technology demonstrated that CsNPF4.4 was the target gene of miR9748. CsNPF4.4 overexpression plants decreased high temperature tolerance accompanied by reducing the content of jasmonic acid (JA), but alleviated by foliar application of methyl jasmonate, indicating that CsNPF4.4 negatively regulated high temperature stress tolerance through inhibition JA signal pathway. Furthermore, high temperature stress also increased the expression level of CsbZIP2. Yeast one-hybrid and dual-luciferase assays showed that CsbZIP2 directly bound to the promoter of MIR9748 to induce its expression. Taken together, our results indicated that CsbZIP2 directly regulated miR9748 expression to cleave CsNPF4.4 to mediate high temperature tolerance through JA pathway.
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Micheel J, Safrastyan A, Wollny D. Advances in Non-Coding RNA Sequencing. Noncoding RNA 2021; 7:70. [PMID: 34842804 PMCID: PMC8628893 DOI: 10.3390/ncrna7040070] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022] Open
Abstract
Non-coding RNAs (ncRNAs) comprise a set of abundant and functionally diverse RNA molecules. Since the discovery of the first ncRNA in the 1960s, ncRNAs have been shown to be involved in nearly all steps of the central dogma of molecular biology. In recent years, the pace of discovery of novel ncRNAs and their cellular roles has been greatly accelerated by high-throughput sequencing. Advances in sequencing technology, library preparation protocols as well as computational biology helped to greatly expand our knowledge of which ncRNAs exist throughout the kingdoms of life. Moreover, RNA sequencing revealed crucial roles of many ncRNAs in human health and disease. In this review, we discuss the most recent methodological advancements in the rapidly evolving field of high-throughput sequencing and how it has greatly expanded our understanding of ncRNA biology across a large number of different organisms.
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Affiliation(s)
| | | | - Damian Wollny
- RNA Bioinformatics/High Throughput Analysis, Faculty of Mathematics and Computer Science, Friedrich Schiller University, 07743 Jena, Germany; (J.M.); (A.S.)
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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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Liao Y, Zhang Q, Cui R, Xu X, Zhu F, Cheng Q, Li X. High-Throughput Sequencing Reveals the Regulatory Networks of Transcriptome and Small RNAs During the Defense Against Marssonina brunnea in Poplar. FRONTIERS IN PLANT SCIENCE 2021; 12:719549. [PMID: 34567031 PMCID: PMC8456019 DOI: 10.3389/fpls.2021.719549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/05/2021] [Indexed: 05/06/2023]
Abstract
MicroRNAs are implicated in the adjustment of gene expression in plant response to biotic stresses. However, the regulatory networks of transcriptome and miRNAs are still poorly understood. In the present study, we ascertained the induction of genes for small RNA biosynthesis in poplar defense to a hemibiotrophic fungus Marssonina brunnea and afterward investigated the molecular regulatory networks by performing comprehensive sequencing analysis of mRNAs and small RNAs in M. brunnea-inoculated leaves. Differentially expressed genes in M. brunnea-infected poplar are mainly involved in secondary metabolisms, phytohormone pathways, the recognition of pathogens, and MAPK pathway in the plant, with real-time quantitative PCR (qPCR) validating the mRNA-seq results. Furthermore, differentially expressed miRNAs, such as MIR167_1-6, MIR167_1-12, MIR171_2-3, MIR395-13, MIR396-3, MIR396-16, MIR398-8, and MIR477-6, were identified. Through psRobot and TargetFinder programs, MIR167-1-6, MIR395-13, MIR396-3, MIR396-16, and MIR398-8 were annotated to modulate the expression of genes implicated in transportation, signaling, and biological responses of phytohormones and activation of antioxidants for plant immunity. Besides, validated differentially expressed genes involved in lignin generation, which were phenylalanine ammonia-lyase, ferulate-5-hydroxylase, cinnamyl alcohol dehydrogenase, and peroxidase 11, were selected as targets for the identification of novel miRNAs. Correspondingly, novel miRNAs, such as Novel MIR8567, Novel MIR3228, Novel MIR5913, and Novel MIR6493, were identified using the Mireap online program, which functions in the transcriptional regulation of lignin biosynthesis for poplar anti-fungal response. The present study underlines the roles of miRNAs in the regulation of transcriptome in the anti-fungal response of poplar and provides a new idea for molecular breeding of woody plants.
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