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Meng J, Li W, Qi F, Yang T, Li N, Wan J, Li X, Jiang Y, Wang C, Huang M, Zhang Y, Chen Y, Teotia S, Tang G, Zhang Z, Tang J. Knockdown of microRNA390 Enhances Maize Brace Root Growth. Int J Mol Sci 2024; 25:6791. [PMID: 38928499 PMCID: PMC11203754 DOI: 10.3390/ijms25126791] [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: 04/09/2024] [Revised: 05/13/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Brace root architecture is a critical determinant of maize's stalk anchorage and nutrition uptake, influencing root lodging resistance, stress tolerance, and plant growth. To identify the key microRNAs (miRNAs) in control of maize brace root growth, we performed small RNA sequencing using brace root samples at emergence and growth stages. We focused on the genetic modulation of brace root development in maize through manipulation of miR390 and its downstream regulated auxin response factors (ARFs). In the present study, miR167, miR166, miR172, and miR390 were identified to be involved in maize brace root growth in inbred line B73. Utilizing short tandem target mimic (STTM) technology, we further developed maize lines with reduced miR390 expression and analyzed their root architecture compared to wild-type controls. Our findings show that STTM390 maize lines exhibit enhanced brace root length and increased whorl numbers. Gene expression analyses revealed that the suppression of miR390 leads to upregulation of its downstream regulated ARF genes, specifically ZmARF11 and ZmARF26, which may significantly alter root architecture. Additionally, loss-of-function mutants for ZmARF11 and ZmARF26 were characterized to further confirm the role of these genes in brace root growth. These results demonstrate that miR390, ZmARF11, and ZmARF26 play crucial roles in regulating maize brace root growth; the involved complicated molecular mechanisms need to be further explored. This study provides a genetic basis for breeding maize varieties with improved lodging resistance and adaptability to diverse agricultural environments.
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Affiliation(s)
- Juan Meng
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Weiya Li
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Feiyan Qi
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Tianxiao Yang
- Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, FL 32611, USA;
| | - Na Li
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Jiong Wan
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Xiaoqi Li
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Yajuan Jiang
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Chenhui Wang
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Meilian Huang
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Yuanyuan Zhang
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Yongqiang Chen
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Sachin Teotia
- Department of Biotechnology, Sharda University, Greater Noida 201306, India;
| | - Guiliang Tang
- Department of Biological Sciences, Life Science and Technology Institute, Michigan Technological University, Houghton, MI 49931, USA;
| | - Zhanhui Zhang
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
| | - Jihua Tang
- National Key Laboratory of Wheat and Maize Crop Science/Collaborative Innovation Center of Henan Grain Crops/College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China; (J.M.); (W.L.); (F.Q.); (N.L.); (J.W.); (X.L.); (Y.J.); (C.W.); (M.H.); (Y.Z.); (Y.C.)
- The Shennong Laboratory, Zhengzhou 450002, China
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Zheng K, Lu J, He X, Lan S, Zhai T, Cao S, Lin Y. Genome-Wide Identification and Expression Analysis of GATA Family Genes in Dimocarpus longan Lour. Int J Mol Sci 2024; 25:731. [PMID: 38255805 PMCID: PMC10815313 DOI: 10.3390/ijms25020731] [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: 11/25/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
GATA transcription factors, which are DNA-binding proteins with type IV zinc finger binding domains, have a role in transcriptional regulation in biological organisms. They have an indispensable role in the growth and development of plants, as well as in improvements in their ability to face various environmental stresses. To date, GATAs have been identified in many gene families, but the GATA gene in longan (Dimocarpus longan Lour) has not been studied in previous explorations. Various aspects of genes in the longan GATA family, including their identification and classification, the distribution of their positions on chromosomes, their exon/intron structures, a synteny analysis, their expression at different temperatures, concentration of PEG, early developmental stages of somatic embryos and their expression levels in different tissues, and concentrations of exogenous hormones, were investigated in this study. This study showed that the 22 DlGATAs could be divided into four subfamilies. There were 10 pairs of homologous GATA genes in the synteny analysis of DlGATA and AtGATA. Four segmental replication motifs and one pair of tandem duplication events were present among the DlGATA family members. The cis-acting elements located in promoter regions were also found to be enriched with light-responsive elements, which contained related hormone-responsive elements. In somatic embryos, DlGATA4 is upregulated for expression at the globular embryo (GE) stage. We also found that DlGATA expression was strongly up-regulated in roots and stems. The study demonstrated the expression of DlGATA under hormone (ABA and IAA) treatments in embryogenic callus of longan. Under ABA treatment, DlGATA4 was up-regulated and the other DlGATA genes did not respond significantly. Moreover, as demonstrated with qRT-PCR, the expression of DlGATA genes showed strong up-regulated expression levels under 100 μmol·L-1 concentration IAA treatment. This experiment further studied these and simulated their possible connections with a drought response mechanism, while correlating them with their expression under PEG treatment. Overall, this experiment explored the GATA genes and dug into their evolution, structure, function, and expression profile, thus providing more information for a more in-depth study of the characteristics of the GATA family of genes.
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Affiliation(s)
- Kehui Zheng
- College of Computer and Information Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Jiayue Lu
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Xinyu He
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Shuoxian Lan
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Tingkai Zhai
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Shijiang Cao
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Yuling Lin
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
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Herrera-Ubaldo H, Nájera-González HR, Luna-García V, Marsch-Martínez N, de Folter S. Hormone immunolabeling in resin-embedded Arabidopsis tissues. STAR Protoc 2023; 4:102514. [PMID: 37573503 PMCID: PMC10448208 DOI: 10.1016/j.xpro.2023.102514] [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: 05/17/2023] [Revised: 06/26/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023] Open
Abstract
Here, we present a protocol for immunolabeling of molecules in Arabidopsis tissues. We describe steps for tissue fixation and embedding in resin of microtome-derived sections, immunolabeling using fluorescent and non-fluorescent secondary antibodies, and visualization of cytokinin and auxin molecules. This protocol is suitable to study reproductive structures such as inflorescences, flowers, fruits, and tissue-culture-derived samples. This protocol is useful for studying the distribution of a wide range of molecules including hormones and cell wall components. For complete details on the use and execution of this protocol, please refer to Herrera-Ubaldo et al. (2019).1.
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Affiliation(s)
- Humberto Herrera-Ubaldo
- Unidad de Genómica Avanzada (UGA-LANGEBIO), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Irapuato, Guanajuato 36824, México
| | - Héctor-Rogelio Nájera-González
- Unidad de Genómica Avanzada (UGA-LANGEBIO), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Irapuato, Guanajuato 36824, México
| | - Valentín Luna-García
- Unidad de Genómica Avanzada (UGA-LANGEBIO), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Irapuato, Guanajuato 36824, México
| | - Nayelli Marsch-Martínez
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Irapuato, Guanajuato 36824, México
| | - Stefan de Folter
- Unidad de Genómica Avanzada (UGA-LANGEBIO), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Irapuato, Guanajuato 36824, México.
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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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Zhao B, Liu Q, Wang B, Yuan F. Roles of Phytohormones and Their Signaling Pathways in Leaf Development and Stress Responses. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3566-3584. [PMID: 33739096 DOI: 10.1021/acs.jafc.0c07908] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Phytohormones participate in various processes over the course of a plant's lifecycle. In addition to the five classical phytohormones (auxins, cytokinins, gibberellins, abscisic acid, and ethylene), phytohormones such as brassinosteroids, jasmonic acid, salicylic acid, strigolactones, and peptides also play important roles in plant growth and stress responses. Given the highly interconnected nature of phytohormones during plant development and stress responses, it is challenging to study the biological function of a single phytohormone in isolation. In the current Review, we describe the combined functions and signaling cascades (especially the shared points and pathways) of various phytohormones in leaf development, in particular, during leaf primordium initiation and the establishment of leaf polarity and leaf morphology as well as leaf development under various stress conditions. We propose a model incorporating the roles of multiple phytohormones in leaf development and stress responses to illustrate the underlying combinatorial signaling pathways. This model provides a reference for breeding stress-resistant crops.
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Affiliation(s)
- Boqing Zhao
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
| | - Qingyun Liu
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
| | - Baoshan Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
| | - Fang Yuan
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
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