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Larran AS, Pajoro A, Qüesta JI. Is winter coming? Impact of the changing climate on plant responses to cold temperature. PLANT, CELL & ENVIRONMENT 2023; 46:3175-3193. [PMID: 37438895 DOI: 10.1111/pce.14669] [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: 05/03/2023] [Revised: 06/23/2023] [Accepted: 07/03/2023] [Indexed: 07/14/2023]
Abstract
Climate change is causing alterations in annual temperature regimes worldwide. Important aspects of this include the reduction of winter chilling temperatures as well as the occurrence of unpredicted frosts, both significantly affecting plant growth and yields. Recent studies advanced the knowledge of the mechanisms underlying cold responses and tolerance in the model plant Arabidopsis thaliana. However, how these cold-responsive pathways will readjust to ongoing seasonal temperature variation caused by global warming remains an open question. In this review, we highlight the plant developmental programmes that depend on cold temperature. We focus on the molecular mechanisms that plants have evolved to adjust their development and stress responses upon exposure to cold. Covering both genetic and epigenetic aspects, we present the latest insights into how alternative splicing, noncoding RNAs and the formation of biomolecular condensates play key roles in the regulation of cold responses. We conclude by commenting on attractive targets to accelerate the breeding of increased cold tolerance, bringing up biotechnological tools that might assist in overcoming current limitations. Our aim is to guide the reflection on the current agricultural challenges imposed by a changing climate and to provide useful information for improving plant resilience to unpredictable cold regimes.
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Affiliation(s)
- Alvaro Santiago Larran
- Centre for Research in Agricultural Genomics (CRAG) IRTA-CSIC-UAB-UB, Campus UAB, Barcelona, Spain
| | - Alice Pajoro
- National Research Council, Institute of Molecular Biology and Pathology, Rome, Italy
| | - Julia I Qüesta
- Centre for Research in Agricultural Genomics (CRAG) IRTA-CSIC-UAB-UB, Campus UAB, Barcelona, Spain
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2
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Yan J, Liu Y, Yan J, Liu Z, Lou H, Wu J. The salt-activated CBF1/CBF2/CBF3-GALS1 module fine-tunes galactan-induced salt hypersensitivity in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:1904-1917. [PMID: 37149782 DOI: 10.1111/jipb.13501] [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: 01/12/2023] [Accepted: 05/04/2023] [Indexed: 05/08/2023]
Abstract
Plant growth and development are significantly hampered in saline environments, limiting agricultural productivity. Thus, it is crucial to unravel the mechanism underlying plant responses to salt stress. β-1,4-Galactan (galactan), which forms the side chains of pectic rhamnogalacturonan I, enhances plant sensitivity to high-salt stress. Galactan is synthesized by GALACTAN SYNTHASE1 (GALS1). We previously showed that NaCl relieves the direct suppression of GALS1 transcription by the transcription factors BPC1 and BPC2 to induce the excess accumulation of galactan in Arabidopsis (Arabidopsis thaliana). However, how plants adapt to this unfavorable environment remains unclear. Here, we determined that the transcription factors CBF1, CBF2, and CBF3 directly interact with the GALS1 promoter and repress its expression, leading to reduced galactan accumulation and enhanced salt tolerance. Salt stress enhances the binding of CBF1/CBF2/CBF3 to the GALS1 promoter by inducing CBF1/CBF2/CBF3 transcription and accumulation. Genetic analysis suggested that CBF1/CBF2/CBF3 function upstream of GALS1 to modulate salt-induced galactan biosynthesis and the salt response. CBF1/CBF2/CBF3 and BPC1/BPC2 function in parallel to regulate GALS1 expression, thereby modulating the salt response. Our results reveal a mechanism in which salt-activated CBF1/CBF2/CBF3 inhibit BPC1/BPC2-regulated GALS1 expression to alleviate galactan-induced salt hypersensitivity, providing an activation/deactivation fine-tune mechanism for dynamic regulation of GALS1 expression under salt stress in Arabidopsis.
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Affiliation(s)
- Jingwei Yan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Ya Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jiawen Yan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zhihui Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Heqiang Lou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jiasheng Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
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Du L, Ma Z, Mao H. Duplicate Genes Contribute to Variability in Abiotic Stress Resistance in Allopolyploid Wheat. PLANTS (BASEL, SWITZERLAND) 2023; 12:2465. [PMID: 37447026 DOI: 10.3390/plants12132465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 07/15/2023]
Abstract
Gene duplication is a universal biological phenomenon that drives genomic variation and diversity, plays a crucial role in plant evolution, and contributes to innovations in genetic engineering and crop development. Duplicated genes participate in the emergence of novel functionality, such as adaptability to new or more severe abiotic stress resistance. Future crop research will benefit from advanced, mechanistic understanding of the effects of gene duplication, especially in the development and deployment of high-performance, stress-resistant, elite wheat lines. In this review, we summarize the current knowledge of gene duplication in wheat, including the principle of gene duplication and its effects on gene function, the diversity of duplicated genes, and how they have functionally diverged. Then, we discuss how duplicated genes contribute to abiotic stress response and the mechanisms of duplication. Finally, we have a future prospects section that discusses the direction of future efforts in the short term regarding the elucidation of replication and retention mechanisms of repetitive genes related to abiotic stress response in wheat, excellent gene function research, and practical applications.
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Affiliation(s)
- Linying Du
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, China
| | - Zhenbing Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling 712100, China
| | - Hude Mao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China
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4
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Yu MM, Wang R, Xia JQ, Li C, Xu QH, Cang J, Wang YY, Zhang D. JA-induced TaMPK6 enhanced the freeze tolerance of Arabidopsis thaliana through regulation of ICE-CBF-COR module and antioxidant enzyme system. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 329:111621. [PMID: 36736462 DOI: 10.1016/j.plantsci.2023.111621] [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: 12/12/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
Mitogen-activated protein kinases (MAPKs) play important roles in the stress response of plants. However, the function of MPK proteins in freeze-resistance in wheat remains unclear. Dongnongdongmai No.1 (Dn1) is a winter wheat variety with a strong freezing resistance at extremely low temperature. In this study, we demonstrated that TaMPK6 is induced by JA signaling and is involved in the modulation of Dn1 freeze resistance. Overexpression of TaMPK6 in Arabidopsis increased the survival rate of plant at -10 ℃. The scavenging ability of reactive oxygen species (ROS) and the expression of cold-responsive genes CBFs and CORs were significantly enhanced in TaMPK6-overexpressed Arabidopsis, suggesting a role of TaMPK6 in activating the ICE-CBF-COR module and antioxidant enzyme system to resist freezing stress. Furthermore, TaMPK6 is localized in the nucleus and TaMPK6 interacts with TaICE41, TaCBF14, and TaMYC2 proteins, the key components in JA signaling and the ICE-CBF-COR pathway. These results suggest that JA-induced TaMPK6 may regulate freezing-resistance in wheat by interacting with the TaICE41, TaCBF14, and TaMYC2 proteins, which in turn enhances the ICE-CBF-COR pathway. Our study revealed the molecular mechanism of TaMPK6 involvement in the cold resistance pathway in winter wheat under cold stress, which provides a basis for enriching the theory of wheat cold resistance.
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Affiliation(s)
- Meng-Meng Yu
- College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
| | - Rui Wang
- College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
| | - Jing-Qiu Xia
- College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
| | - Chang Li
- College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
| | - Qing-Hua Xu
- College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
| | - Jing Cang
- College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China
| | - Yu-Ying Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
| | - Da Zhang
- College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang, China.
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5
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Kopecká R, Kameniarová M, Černý M, Brzobohatý B, Novák J. Abiotic Stress in Crop Production. Int J Mol Sci 2023; 24:ijms24076603. [PMID: 37047573 PMCID: PMC10095105 DOI: 10.3390/ijms24076603] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/23/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
The vast majority of agricultural land undergoes abiotic stress that can significantly reduce agricultural yields. Understanding the mechanisms of plant defenses against stresses and putting this knowledge into practice is, therefore, an integral part of sustainable agriculture. In this review, we focus on current findings in plant resistance to four cardinal abiotic stressors—drought, heat, salinity, and low temperatures. Apart from the description of the newly discovered mechanisms of signaling and resistance to abiotic stress, this review also focuses on the importance of primary and secondary metabolites, including carbohydrates, amino acids, phenolics, and phytohormones. A meta-analysis of transcriptomic studies concerning the model plant Arabidopsis demonstrates the long-observed phenomenon that abiotic stressors induce different signals and effects at the level of gene expression, but genes whose regulation is similar under most stressors can still be traced. The analysis further reveals the transcriptional modulation of Golgi-targeted proteins in response to heat stress. Our analysis also highlights several genes that are similarly regulated under all stress conditions. These genes support the central role of phytohormones in the abiotic stress response, and the importance of some of these in plant resistance has not yet been studied. Finally, this review provides information about the response to abiotic stress in major European crop plants—wheat, sugar beet, maize, potatoes, barley, sunflowers, grapes, rapeseed, tomatoes, and apples.
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Affiliation(s)
- Romana Kopecká
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Michaela Kameniarová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Jan Novák
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
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Yao D, Wang J, Peng W, Zhang B, Wen X, Wan X, Wang X, Li X, Ma J, Liu X, Fan Y, Sun G. Transcriptomic profiling of wheat stem during meiosis in response to freezing stress. FRONTIERS IN PLANT SCIENCE 2023; 13:1099677. [PMID: 36714719 PMCID: PMC9878610 DOI: 10.3389/fpls.2022.1099677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 12/19/2022] [Indexed: 06/18/2023]
Abstract
Low temperature injury in spring has seriously destabilized the production and grain quality of common wheat. However, the molecular mechanisms underlying spring frost tolerance remain elusive. In this study, we investigated the response of a frost-tolerant wheat variety Zhongmai8444 to freezing stress at the meiotic stage. Transcriptome profiles over a time course were subsequently generated by high-throughput sequencing. Our results revealed that the prolonged freezing temperature led to the significant reductions in plant height and seed setting rate. Cell wall thickening in the vascular tissue was also observed in the stems. RNA-seq analyses demonstrated the identification of 1010 up-regulated and 230 down-regulated genes shared by all time points of freezing treatment. Enrichment analysis revealed that gene activity related to hormone signal transduction and cell wall biosynthesis was significantly modulated under freezing. In addition, among the identified differentially expressed genes, 111 transcription factors belonging to multiple gene families exhibited dynamic expression pattern. This study provided valuable gene resources beneficial for the breeding of wheat varieties with improved spring frost tolerance.
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Affiliation(s)
- Danyu Yao
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Juan Wang
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wentao Peng
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agricultural Science and Engineering, Liaocheng University, Liaocheng, Shandong, China
| | - Bowen Zhang
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agronomy, Jilin Agricultural University, Changchun, Jilin, China
| | - Xiaolan Wen
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Hebei, China
| | - Xiaoneng Wan
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiuyuan Wang
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agricultural Science and Engineering, Liaocheng University, Liaocheng, Shandong, China
| | - Xinchun Li
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jian Ma
- College of Agronomy, Jilin Agricultural University, Changchun, Jilin, China
| | - Xiaofen Liu
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, Hebei, China
| | - Yinglun Fan
- College of Agricultural Science and Engineering, Liaocheng University, Liaocheng, Shandong, China
| | - Guozhong Sun
- National Engineering Laboratory of Crop Molecular Breeding, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
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7
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Aslam MM, Deng L, Meng J, Wang Y, Pan L, Niu L, Lu Z, Cui G, Zeng W, Wang Z. Characterization and expression analysis of basic leucine zipper (bZIP) transcription factors responsive to chilling injury in peach fruit. Mol Biol Rep 2023; 50:361-376. [PMID: 36334232 DOI: 10.1007/s11033-022-08035-3] [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: 03/30/2022] [Accepted: 10/17/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Peach (Prunus persica L.) is prone to chilling injury as exhibited by inhibition of the ethylene production, failure in softening, and the manifestation of internal browning. The basic leucine zipper (bZIP) transcription factors play an essential role in regulatory networks that control many processes associated with physiological, abiotic and biotic stress responses in fruits. Formerly, the underlying molecular and regulatory mechanism of (bZIP) transcription factors responsive to chilling injury in peach fruit is still elusive. METHODS AND RESULTS In the current experiment, the solute peach 'Zhongyou Peach No. 13' was used as the test material and cold storage at low temperature (4 °C). It was found that long-term low-temperature storage induced the production of ethylene, the hardness of the pulp decreased, and the low temperature also induced ABA accumulation. The changes of ABA and ethylene in peach fruits during low-temperature storage were clarified. Since the bZIP transcription factor is involved in the regulation of downstream pathways of ABA signals, 47 peach bZIP transcription factor family genes were identified through bioinformatics analysis. Further based on RT-qPCR analysis, 18 PpbZIP genes were discovered to be expressed in refrigerated peach fruits. Among them, the expression of PpbZIP23 and PpbZIP25 was significantly reduced during the refrigeration process, the promoter analysis of these genes found that this region contains the MYC/MYB/ABRES binding element, but not the DRES/CBFS element, indicating that the expression may be regulated by the ABA-dependent cold induction pathway, thereby responding to chilling injury in peach fruit. CONCLUSIONS Over investigation will provide new insights for further postharvest protocols related to molecular changes during cold storage and will prove a better cope for chilling injury.
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Affiliation(s)
- Muhammad Muzammal Aslam
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Li Deng
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Junren Meng
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Yan Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Lei Pan
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Liang Niu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Zhenhua Lu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Guochao Cui
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China
| | - Wenfang Zeng
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China.
| | - Zhiqiang Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, People's Republic of China.
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Su H, Tan C, Liu Y, Chen X, Li X, Jones A, Zhu Y, Song Y. Physiology and Molecular Breeding in Sustaining Wheat Grain Setting and Quality under Spring Cold Stress. Int J Mol Sci 2022; 23:ijms232214099. [PMID: 36430598 PMCID: PMC9693015 DOI: 10.3390/ijms232214099] [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: 09/15/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 11/17/2022] Open
Abstract
Spring cold stress (SCS) compromises the reproductive growth of wheat, being a major constraint in achieving high grain yield and quality in winter wheat. To sustain wheat productivity in SCS conditions, breeding cultivars conferring cold tolerance is key. In this review, we examine how grain setting and quality traits are affected by SCS, which may occur at the pre-anthesis stage. We have investigated the physiological and molecular mechanisms involved in floret and spikelet SCS tolerance. It includes the protective enzymes scavenging reactive oxygen species (ROS), hormonal adjustment, and carbohydrate metabolism. Lastly, we explored quantitative trait loci (QTLs) that regulate SCS for identifying candidate genes for breeding. The existing cultivars for SCS tolerance were primarily bred on agronomic and morphophysiological traits and lacked in molecular investigations. Therefore, breeding novel wheat cultivars based on QTLs and associated genes underlying the fundamental resistance mechanism is urgently needed to sustain grain setting and quality under SCS.
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Affiliation(s)
- Hui Su
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Cheng Tan
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Yonghua Liu
- School of Horticulture, Hainan University, Haikou 570228, China
| | - Xiang Chen
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Xinrui Li
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Ashley Jones
- Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
| | - Yulei Zhu
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
- Correspondence: (Y.Z.); (Y.S.)
| | - Youhong Song
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia
- Correspondence: (Y.Z.); (Y.S.)
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9
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Wang R, Yu M, Xia J, Xing J, Fan X, Xu Q, Cang J, Zhang D. Overexpression of TaMYC2 confers freeze tolerance by ICE-CBF-COR module in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2022; 13:1042889. [PMID: 36466238 PMCID: PMC9710523 DOI: 10.3389/fpls.2022.1042889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
Dongnongdongmai No.1 (Dn1) is one of the few winter wheat varieties that can successfully overwinter at temperatures as low as -25°C or even lower. To date, few researches were carried to identify the freeze tolerance genes in Dn1 and applied them to improve plant resistance to extreme low temperatures. The basic helix-loop-helix (bHLH) transcription factor MYC2 is a master regulator in JA signaling, which has been reported to involve in responses to mild cold stress (2°C and 7°C). We hypothesized that MYC2 might be part of the regulatory network responsible for the tolerance of Dn1 to extreme freezing temperatures. In this study, we showed that wheat MYC2 (TaMYC2) was induced under both extreme low temperature (-10°C and-25°C) and JA treatments. The ICE-CBF-COR transcriptional cascade, an evolutionary conserved cold resistance pathway downstream of MYC2, was also activated in extreme low temperatures. We further showed that overexpression of any of the MYC2 genes from Dn1 TaMYC2A, B, D in Arabidopsis led to enhanced freeze tolerance. The TaMYC2 overexpression lines had less electrolyte leakage and lower malondialdehyde (MDA) content, and an increase in proline content, an increases antioxidant defences, and the enhanced expression of ICE-CBF-COR module under the freezing temperature. We further verified that TaMYC2 might function through physical interaction with TaICE41 and TaJAZ7, and that TaJAZ7 physically interacts with TaICE41. These results elucidate the molecular mechanism by which TaMYC2 regulates cold tolerance and lay the foundation for future studies to improve cold tolerance in plants.
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10
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Li J, Li H, Quan X, Shan Q, Wang W, Yin N, Wang S, Wang Z, He W. Comprehensive analysis of cucumber C-repeat/dehydration-responsive element binding factor family genes and their potential roles in cold tolerance of cucumber. BMC PLANT BIOLOGY 2022; 22:270. [PMID: 35655135 PMCID: PMC9161515 DOI: 10.1186/s12870-022-03664-z] [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: 02/23/2022] [Accepted: 05/25/2022] [Indexed: 06/01/2023]
Abstract
BACKGROUND Cold stress is one of the main abiotic stresses limiting cucumber (Cucumis sativus L.) growth and production. C-repeat binding factor/Dehydration responsive element-binding 1 protein (CBF/DREB1), containing conserved APETALA2 (AP2) DNA binding domains and two characteristic sequences, are key signaling genes that can be rapidly induced and play vital roles in plant response to low temperature. However, the CBF family has not been systematically elucidated in cucumber, and the expression pattern of this family genes under cold stress remains unclear. RESULTS In this study, three CsCBF family genes were identified in cucumber genome and their protein conserved domain, protein physicochemical properties, gene structure and phylogenetic analysis were further comprehensively analyzed. Subcellular localization showed that all three CsCBFs were localized in the nucleus. Cis-element analysis of the promoters indicated that CsCBFs might be involved in plant hormone response and abiotic stress response. Expression analysis showed that the three CsCBFs could be significantly induced by cold stress, salt and ABA. The overexpression of CsCBFs in cucumber seedlings enhanced the tolerance to cold stress, and importantly, the transcript levels of CsCOR genes were significantly upregulated in 35S:CsCBFs transgenic plants after cold stress treatment. Biochemical analyses ascertained that CsCBFs directly activated CsCOR genes expression by binding to its promoter, thereby enhancing plant resistance to cold stress. CONCLUSION This study provided a foundation for further research on the function of CsCBF genes in cold stress resistance and elucidating its mechanism.
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Affiliation(s)
- Jialin Li
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Hongmei Li
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Xiaoyan Quan
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Qiuli Shan
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Wenbo Wang
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Ning Yin
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Siqi Wang
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Zenghui Wang
- Shandong Institute of Pomology, Tai’an, Shandong 271000 China
| | - Wenxing He
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
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11
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Genetic Mechanisms of Cold Signaling in Wheat (Triticum aestivum L.). Life (Basel) 2022; 12:life12050700. [PMID: 35629367 PMCID: PMC9147279 DOI: 10.3390/life12050700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 11/28/2022] Open
Abstract
Cold stress is a major environmental factor affecting the growth, development, and productivity of various crop species. With the current trajectory of global climate change, low temperatures are becoming more frequent and can significantly decrease crop yield. Wheat (Triticum aestivum L.) is the first domesticated crop and is the most popular cereal crop in the world. Because of a lack of systematic research on cold signaling pathways and gene regulatory networks, the underlying molecular mechanisms of cold signal transduction in wheat are poorly understood. This study reviews recent progress in wheat, including the ICE-CBF-COR signaling pathway under cold stress and the effects of cold stress on hormonal pathways, reactive oxygen species (ROS), and epigenetic processes and elements. This review also highlights possible strategies for improving cold tolerance in wheat.
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12
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Primo-Capella A, Forner-Giner MÁ, Martínez-Cuenca MR, Terol J. Comparative transcriptomic analyses of citrus cold-resistant vs. sensitive rootstocks might suggest a relevant role of ABA signaling in triggering cold scion adaption. BMC PLANT BIOLOGY 2022; 22:209. [PMID: 35448939 PMCID: PMC9027863 DOI: 10.1186/s12870-022-03578-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/04/2022] [Indexed: 05/24/2023]
Abstract
BACKGROUND The citrus genus comprises a number of sensitive tropical and subtropical species to cold stress, which limits global citrus distribution to certain latitudes and causes major economic loss. We used RNA-Seq technology to analyze changes in the transcriptome of Valencia delta seedless orange in response to long-term cold stress grafted on two frequently used citrus rootstocks: Carrizo citrange (CAR), considered one of the most cold-tolerant accessions; C. macrophylla (MAC), a very sensitive one. Our objectives were to identify the genetic mechanism that produce the tolerant or sensitive phenotypes in citrus, as well as to gain insights of the rootstock-scion interactions that induce the cold tolerance or sensitivity in the scion. RESULTS Plants were kept at 1 ºC for 30 days. Samples were taken at 0, 15 and 30 days. The metabolomic analysis showed a significant increase in the concentration of free sugars and proline, which was higher for the CAR plants. Hormone quantification in roots showed a substantially increased ABA concentration during cold exposure in the CAR roots, which was not observed in MAC. Different approaches were followed to analyze gene expression. During the stress treatment, the 0-15-day comparison yielded the most DEGs. The functional characterization of DEGs showed enrichment in GO terms and KEGG pathways related to abiotic stress responses previously described in plant cold adaption. The DEGs analysis revealed that several key genes promoting cold adaption were up-regulated in the CAR plants, and those repressing it had higher expression levels in the MAC samples. CONCLUSIONS The metabolomic and transcriptomic study herein performed indicates that the mechanisms activated in plants shortly after cold exposure remain active in the long term. Both the hormone quantification and differential expression analysis suggest that ABA signaling might play a relevant role in promoting the cold hardiness or sensitiveness of Valencia sweet orange grafted onto Carrizo citrange or Macrophylla rootstocks, respectively. Our work provides new insights into the mechanisms by which rootstocks modulate resistance to abiotic stress in the production variety grafted onto them.
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Affiliation(s)
- Amparo Primo-Capella
- Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain.
| | - María Ángeles Forner-Giner
- Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain
| | - Mary-Rus Martínez-Cuenca
- Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain
| | - Javier Terol
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain
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13
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Guerra D, Morcia C, Badeck F, Rizza F, Delbono S, Francia E, Milc JA, Monostori I, Galiba G, Cattivelli L, Tondelli A. Extensive allele mining discovers novel genetic diversity in the loci controlling frost tolerance in barley. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:553-569. [PMID: 34757472 PMCID: PMC8866391 DOI: 10.1007/s00122-021-03985-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 10/26/2021] [Indexed: 05/24/2023]
Abstract
Exome sequencing-based allele mining for frost tolerance suggests HvCBF14 rather than CNV at Fr-H2 locus is the main responsible of frost tolerance in barley. Wild relatives, landraces and old cultivars of barley represent a reservoir of untapped and potentially important genes for crop improvement, and the recent sequencing technologies provide the opportunity to mine the existing genetic diversity and to identify new genes/alleles for the traits of interest. In the present study, we use frost tolerance and vernalization requirement as case studies to demonstrate the power of allele mining carried out on exome sequencing data generated from > 400 barley accessions. New deletions in the first intron of VRN-H1 were identified and linked to a reduced vernalization requirement, while the allelic diversity of HvCBF2a, HvCBF4b and HvCBF14 was investigated by combining the analysis of SNPs and read counts. This approach has proven very effective to identify gene paralogs and copy number variants of HvCBF2 and the HvCBF4b-HvCBF2a segment. A multiple linear regression model which considers allelic variation at these genes suggests a major involvement of HvCBF14, rather than copy number variation of HvCBF4b-HvCBF2a, in controlling frost tolerance in barley. Overall, the present study provides powerful resource and tools to discover novel alleles at relevant genes in barley.
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Affiliation(s)
- Davide Guerra
- Council for Agricultural Research and Economics - Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda , PC, Italy.
| | - Caterina Morcia
- Council for Agricultural Research and Economics - Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda , PC, Italy
| | - Franz Badeck
- Council for Agricultural Research and Economics - Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda , PC, Italy
| | - Fulvia Rizza
- Council for Agricultural Research and Economics - Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda , PC, Italy
| | - Stefano Delbono
- Council for Agricultural Research and Economics - Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda , PC, Italy
| | - Enrico Francia
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, Pad. Besta, 42122, Reggio Emilia, Italy
| | - Justyna Anna Milc
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, Pad. Besta, 42122, Reggio Emilia, Italy
| | - Istvan Monostori
- Centre for Agricultural Research, Agricultural Institute, Eötvös Loránd Research Network, Martonvásár, 2462, Hungary
| | - Gabor Galiba
- Centre for Agricultural Research, Agricultural Institute, Eötvös Loránd Research Network, Martonvásár, 2462, Hungary
- Department of Environmental Sustainability, Festetics Doctoral School, IES, Hungarian University of Agriculture and Life Sciences, Georgikon Campus, Keszthely, 8360, Hungary
| | - Luigi Cattivelli
- Council for Agricultural Research and Economics - Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda , PC, Italy
| | - Alessandro Tondelli
- Council for Agricultural Research and Economics - Research Centre for Genomics and Bioinformatics, Via S. Protaso 302, 29017, Fiorenzuola d'Arda , PC, Italy
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14
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Song Y, Zhang X, Li M, Yang H, Fu D, Lv J, Ding Y, Gong Z, Shi Y, Yang S. The direct targets of CBFs: In cold stress response and beyond. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:1874-1887. [PMID: 34379362 DOI: 10.1111/jipb.13161] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Cold acclimation in Arabidopsis thaliana triggers a significant transcriptional reprogramming altering the expression patterns of thousands of cold-responsive (COR) genes. Essential to this process is the C-repeat binding factor (CBF)-dependent pathway, involving the activity of AP2/ERF (APETALA2/ethylene-responsive factor)-type CBF transcription factors required for plant cold acclimation. In this study, we performed chromatin immunoprecipitation assays followed by deep sequencing (ChIP-seq) to determine the genome-wide binding sites of the CBF transcription factors. Cold-induced CBF proteins specifically bind to the conserved C-repeat (CRT)/dehydration-responsive elements (CRT/DRE; G/ACCGAC) of their target genes. A Gene Ontology enrichment analysis showed that 1,012 genes are targeted by all three CBFs. Combined with a transcriptional analysis of the cbf1,2,3 triple mutant, we define 146 CBF regulons as direct CBF targets. In addition, the CBF-target genes are significantly enriched in functions associated with hormone, light, and circadian rhythm signaling, suggesting that the CBFs act as key integrators of endogenous and external environmental cues. Our findings not only define the genome-wide binding patterns of the CBFs during the early cold response, but also provide insights into the role of the CBFs in regulating multiple biological processes of plants.
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Affiliation(s)
- Yue Song
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaoyan Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Minze Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Hao Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Diyi Fu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jian Lv
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yanglin Ding
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhizhong Gong
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yiting Shi
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuhua Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
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15
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Stockinger EJ. The Breeding of Winter-Hardy Malting Barley. PLANTS 2021; 10:plants10071415. [PMID: 34371618 PMCID: PMC8309344 DOI: 10.3390/plants10071415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/20/2022]
Abstract
In breeding winter malting barley, one recurring strategy is to cross a current preferred spring malting barley to a winter barley. This is because spring malting barleys have the greatest amalgamation of trait qualities desirable for malting and brewing. Spring barley breeding programs can also cycle their material through numerous generations each year-some managing even six-which greatly accelerates combining desirable alleles to generate new lines. In a winter barley breeding program, a single generation per year is the limit when the field environment is used and about two generations per year if vernalization and greenhouse facilities are used. However, crossing the current favored spring malting barley to a winter barley may have its downsides, as winter-hardiness too may be an amalgamation of desirable alleles assembled together that confers the capacity for prolonged cold temperature conditions. In this review I touch on some general criteria that give a variety the distinction of being a malting barley and some of the general trends made in the breeding of spring malting barleys. But the main objective of this review is to pull together different aspects of what we know about winter-hardiness from the seemingly most essential aspect, which is survival in the field, to molecular genetics and gene regulation, and then finish with ideas that might help further our insight for predictability purposes.
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Affiliation(s)
- Eric J Stockinger
- Ohio Agricultural Research and Development Center (OARDC), Department of Horticulture and Crop Science, The Ohio State University, Wooster, OH 44691, USA
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16
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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: 38] [Impact Index Per Article: 12.7] [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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17
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Boldizsár Á, Soltész A, Tanino K, Kalapos B, Marozsán-Tóth Z, Monostori I, Dobrev P, Vankova R, Galiba G. Elucidation of molecular and hormonal background of early growth cessation and endodormancy induction in two contrasting Populus hybrid cultivars. BMC PLANT BIOLOGY 2021; 21:111. [PMID: 33627081 PMCID: PMC7905644 DOI: 10.1186/s12870-021-02828-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/06/2021] [Indexed: 06/02/2023]
Abstract
BACKGROUND Over the life cycle of perennial trees, the dormant state enables the avoidance of abiotic stress conditions. The growth cycle can be partitioned into induction, maintenance and release and is controlled by complex interactions between many endogenous and environmental factors. While phytohormones have long been linked with dormancy, there is increasing evidence of regulation by DAM and CBF genes. To reveal whether the expression kinetics of CBFs and their target PtDAM1 is related to growth cessation and endodormancy induction in Populus, two hybrid poplar cultivars were studied which had known differential responses to dormancy inducing conditions. RESULTS Growth cessation, dormancy status and expression of six PtCBFs and PtDAM1 were analyzed. The 'Okanese' hybrid cultivar ceased growth rapidly, was able to reach endodormancy, and exhibited a significant increase of several PtCBF transcripts in the buds on the 10th day. The 'Walker' cultivar had delayed growth cessation, was unable to enter endodormancy, and showed much lower CBF expression in buds. Expression of PtDAM1 peaked on the 10th day only in the buds of 'Okanese'. In addition, PtDAM1 was not expressed in the leaves of either cultivar while leaf CBFs expression pattern was several fold higher in 'Walker', peaking at day 1. Leaf phytohormones in both cultivars followed similar profiles during growth cessation but differentiated based on cytokinins which were largely reduced, while the Ox-IAA and iP7G increased in 'Okanese' compared to 'Walker'. Surprisingly, ABA concentration was reduced in leaves of both cultivars. However, the metabolic deactivation product of ABA, phaseic acid, exhibited an early peak on the first day in 'Okanese'. CONCLUSIONS Our results indicate that PtCBFs and PtDAM1 have differential kinetics and spatial localization which may be related to early growth cessation and endodormancy induction under the regime of low night temperature and short photoperiod in poplar. Unlike buds, PtCBFs and PtDAM1 expression levels in leaves were not associated with early growth cessation and dormancy induction under these conditions. Our study provides new evidence that the degradation of auxin and cytokinins in leaves may be an important regulatory point in a CBF-DAM induced endodormancy. Further investigation of other PtDAMs in bud tissue and a study of both growth-inhibiting and the degradation of growth-promoting phytohormones is warranted.
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Affiliation(s)
- Ákos Boldizsár
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Alexandra Soltész
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Karen Tanino
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK S7N 5A8 Canada
| | - Balázs Kalapos
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Zsuzsa Marozsán-Tóth
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - István Monostori
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
| | - Petre Dobrev
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, 165 02 Czech Republic
| | - Radomira Vankova
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Prague, 165 02 Czech Republic
| | - Gábor Galiba
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, ELKH, Martonvásár, H-2462 Hungary
- Festetics Doctoral School, Georgikon Campus, Szent István University, Keszthely, H-8360 Hungary
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18
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Identification of the Genetic Basis of Response to De-Acclimation in Winter Barley. Int J Mol Sci 2021; 22:ijms22031057. [PMID: 33494371 PMCID: PMC7865787 DOI: 10.3390/ijms22031057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 12/28/2022] Open
Abstract
Mechanisms involved in the de-acclimation of herbaceous plants caused by warm periods during winter are poorly understood. This study identifies the genes associated with this mechanism in winter barley. Seedlings of eight accessions (four tolerant and four susceptible to de-acclimation cultivars and advanced breeding lines) were cold acclimated for three weeks and de-acclimated at 12 °C/5 °C (day/night) for one week. We performed differential expression analysis using RNA sequencing. In addition, reverse-transcription quantitative real-time PCR and enzyme activity analyses were used to investigate changes in the expression of selected genes. The number of transcripts with accumulation level changed in opposite directions during acclimation and de-acclimation was much lower than the number of transcripts with level changed exclusively during one of these processes. The de-acclimation-susceptible accessions showed changes in the expression of a higher number of functionally diverse genes during de-acclimation. Transcripts associated with stress response, especially oxidoreductases, were the most abundant in this group. The results provide novel evidence for the distinct molecular regulation of cold acclimation and de-acclimation. Upregulation of genes controlling developmental changes, typical for spring de-acclimation, was not observed during mid-winter de-acclimation. Mid-winter de-acclimation seems to be perceived as an opportunity to regenerate after stress. Unfortunately, it is competitive to remain in the cold-acclimated state. This study shows that the response to mid-winter de-acclimation is far more expansive in de-acclimation-susceptible cultivars, suggesting that a reduced response to the rising temperature is crucial for de-acclimation tolerance.
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19
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Kovács T, Ahres M, Pálmai T, Kovács L, Uemura M, Crosatti C, Galiba G. Decreased R:FR Ratio in Incident White Light Affects the Composition of Barley Leaf Lipidome and Freezing Tolerance in a Temperature-Dependent Manner. Int J Mol Sci 2020; 21:ijms21207557. [PMID: 33066276 PMCID: PMC7593930 DOI: 10.3390/ijms21207557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/29/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023] Open
Abstract
In cereals, C-repeat binding factor genes have been defined as key components of the light quality-dependent regulation of frost tolerance by integrating phytochrome-mediated light and temperature signals. This study elucidates the differences in the lipid composition of barley leaves illuminated with white light or white light supplemented with far-red light at 5 or 15 °C. According to LC-MS analysis, far-red light supplementation increased the amount of monogalactosyldiacylglycerol species 36:6, 36:5, and 36:4 after 1 day at 5 °C, and 10 days at 15 °C resulted in a perturbed content of 38:6 species. Changes were observed in the levels of phosphatidylethanolamine, and phosphatidylserine under white light supplemented with far-red light illumination at 15 °C, whereas robust changes were observed in the amount of several phosphatidylserine species at 5 °C. At 15 °C, the amount of some phosphatidylglycerol species increased as a result of white light supplemented with far-red light illumination after 1 day. The ceramide (42:2)-3 content increased regardless of the temperature. The double-bond index of phosphatidylglycerol, phosphatidylserine, phosphatidylcholine ceramide together with total double-bond index changed when the plant was grown at 15 °C as a function of white light supplemented with far-red light. white light supplemented with far-red light increased the monogalactosyldiacylglycerol/diacylglycerol ratio as well. The gene expression changes are well correlated with the alterations in the lipidome.
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Affiliation(s)
- Terézia Kovács
- Biological Research Centre, Institute of Plant Biology, H-6701 Szeged, Hungary;
- Department of Plant Biology, University of Szeged, 6720 Szeged, Hungary
- Correspondence:
| | - Mohamed Ahres
- Centre for Agricultural Research, Agricultural Institute, 2462 Martonvásár, Hungary; (M.A.); (T.P.); (G.G.)
- Festetics Doctoral School, Georgikon Campus, Szent István University, H-2100 Gödöllő, Hungary
| | - Tamás Pálmai
- Centre for Agricultural Research, Agricultural Institute, 2462 Martonvásár, Hungary; (M.A.); (T.P.); (G.G.)
| | - László Kovács
- Biological Research Centre, Institute of Plant Biology, H-6701 Szeged, Hungary;
| | - Matsuo Uemura
- Department of Plant-Bioscience, Faculty of Agriculture, Iwate University, Morioka 020-8550, Japan;
| | - Cristina Crosatti
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, 29017 San Protaso, Italy;
| | - Gabor Galiba
- Centre for Agricultural Research, Agricultural Institute, 2462 Martonvásár, Hungary; (M.A.); (T.P.); (G.G.)
- Festetics Doctoral School, Georgikon Campus, Szent István University, H-2100 Gödöllő, Hungary
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20
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Rotasperti L, Sansoni F, Mizzotti C, Tadini L, Pesaresi P. Barley's Second Spring as A Model Organism for Chloroplast Research. PLANTS 2020; 9:plants9070803. [PMID: 32604986 PMCID: PMC7411767 DOI: 10.3390/plants9070803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 12/19/2022]
Abstract
Barley (Hordeum vulgare) has been widely used as a model crop for studying molecular and physiological processes such as chloroplast development and photosynthesis. During the second half of the 20th century, mutants such as albostrians led to the discovery of the nuclear-encoded, plastid-localized RNA polymerase and the retrograde (chloroplast-to-nucleus) signalling communication pathway, while chlorina-f2 and xantha mutants helped to shed light on the chlorophyll biosynthetic pathway, on the light-harvesting proteins and on the organization of the photosynthetic apparatus. However, during the last 30 years, a large fraction of chloroplast research has switched to the more “user-friendly” model species Arabidopsis thaliana, the first plant species whose genome was sequenced and published at the end of 2000. Despite its many advantages, Arabidopsis has some important limitations compared to barley, including the lack of a real canopy and the absence of the proplastid-to-chloroplast developmental gradient across the leaf blade. These features, together with the availability of large collections of natural genetic diversity and mutant populations for barley, a complete genome assembly and protocols for genetic transformation and gene editing, have relaunched barley as an ideal model species for chloroplast research. In this review, we provide an update on the genomics tools now available for barley, and review the biotechnological strategies reported to increase photosynthesis efficiency in model species, which deserve to be validated in barley.
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21
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Zhou H, He Y, Zhu Y, Li M, Song S, Bo W, Li Y, Pang X. Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars. BMC PLANT BIOLOGY 2020; 20:240. [PMID: 32460709 PMCID: PMC7254757 DOI: 10.1186/s12870-020-02450-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 05/19/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND Low temperature is a major factor influencing the growth and development of Chinese jujube (Ziziphus jujuba Mill.) in cold winter and spring. Little is known about the molecular mechanisms enabling jujube to cope with different freezing stress conditions. To elucidate the freezing-related molecular mechanism, we conducted comparative transcriptome analysis between 'Dongzao' (low freezing tolerance cultivar) and 'Jinsixiaozao' (high freezing tolerance cultivar) using RNA-Seq. RESULTS More than 20,000 genes were detected at chilling (4 °C) and freezing (- 10 °C, - 20 °C, - 30 °C and - 40 °C) stress between the two cultivars. The numbers of differentially expressed genes (DEGs) between the two cultivars were 1831, 2030, 1993, 1845 and 2137 under the five treatments. Functional enrichment analysis suggested that the metabolic pathway, response to stimulus and catalytic activity were significantly enriched under stronger freezing stress. Among the DEGs, nine participated in the Ca2+ signal pathway, thirty-two were identified to participate in sucrose metabolism, and others were identified to participate in the regulation of ROS, plant hormones and antifreeze proteins. In addition, important transcription factors (WRKY, AP2/ERF, NAC and bZIP) participating in freezing stress were activated under different degrees of freezing stress. CONCLUSIONS Our research first provides a more comprehensive understanding of DEGs involved in freezing stress at the transcriptome level in two Z. jujuba cultivars with different freezing tolerances. These results may help to elucidate the molecular mechanism of freezing tolerance in jujube and also provides new insights and candidate genes for genetically enhancing freezing stress tolerance.
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Affiliation(s)
- Heying Zhou
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Ying He
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Yongsheng Zhu
- Institute of Crop, Wuhan Academy of Agricultural Sciences, Wuhan, 430074, China
| | - Meiyu Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Shuang Song
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Wenhao Bo
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Yingyue Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Xiaoming Pang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China.
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22
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Ahres M, Gierczik K, Boldizsár Á, Vítámvás P, Galiba G. Temperature and Light-Quality-Dependent Regulation of Freezing Tolerance in Barley. PLANTS 2020; 9:plants9010083. [PMID: 31936533 PMCID: PMC7020399 DOI: 10.3390/plants9010083] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/31/2019] [Accepted: 01/07/2020] [Indexed: 01/10/2023]
Abstract
It is established that, besides the cold, incident light also has a crucial role in the cold acclimation process. To elucidate the interaction between these two external hardening factors, barley plantlets were grown under different light conditions with low, normal, and high light intensities at 5 and 15 °C. The expression of the HvCBF14 gene and two well-characterized members of the C-repeat binding factor (CBF)-regulon HvCOR14b and HvDHN5 were studied. In general, the expression level of the studied genes was several fold higher at 5 °C than that at 15 °C independently of the applied light intensity or the spectra. The complementary far-red (FR) illumination induced the expression of HvCBF14 and also its target gene HvCOR14b at both temperatures. However, this supplementation did not affect significantly the expression of HvDHN5. To test the physiological effects of these changes in environmental conditions, freezing tests were also performed. In all the cases, we found that the reduced R:FR ratio increased the frost tolerance of barley at every incident light intensity. These results show that the combined effects of cold, light intensity, and the modification of the R:FR light ratio can greatly influence the gene expression pattern of the plants, which can result in increased plant frost tolerance.
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Affiliation(s)
- Mohamed Ahres
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary;
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
| | - Krisztián Gierczik
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
| | - Ákos Boldizsár
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
| | - Pavel Vítámvás
- Department of Genetics and Plant Breeding, Crop Research Institute, 161 06 Prague 6, Czech Republic;
| | - Gábor Galiba
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary;
- Agricultural Institute, Centre for Agricultural Research, 2462 Martonvásár, Hungary; (K.G.); (Á.B.)
- Correspondence: ; Tel.:+36-22-460-523
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23
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Zhao Y, Zhou M, Xu K, Li J, Li S, Zhang S, Yang X. Integrated transcriptomics and metabolomics analyses provide insights into cold stress response in wheat. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.cj.2019.09.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Guo J, Ren Y, Tang Z, Shi W, Zhou M. Characterization and expression profiling of the ICE-CBF-COR genes in wheat. PeerJ 2019; 7:e8190. [PMID: 31803544 PMCID: PMC6886486 DOI: 10.7717/peerj.8190] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/11/2019] [Indexed: 11/30/2022] Open
Abstract
Cold stress is one of the major abiotic stresses that limit crop production. The ICE-CBF-COR pathway is associated with cold stress response in a wide variety of crop species. However, the ICE-CBF-COR genes has not been well characterized in wheat (Triticum aestivum). This study identified, characterized and examined the expression profiles of the ICE, CBF and COR genes for cold defense in wheat. Five ICE (inducer of CBF expression) genes, 37 CBF (C-repeat binding factor) genes and 11 COR (cold-responsive or cold-regulated) genes were discovered in the wheat genome database. Phylogenetic trees based on all 53 genes revealed that CBF genes were more diverse than ICE and COR genes. Twenty-two of the 53 genes appeared to include 11 duplicated pairs. Twenty rice (Oryza sativa) genes and 21 sorghum (Sorghum bicolor) and maize (Zea mays) genes showed collinearity with the wheat ICE, CBF and COR genes. Transcriptome data and qRT-PCR analyses revealed tissue-specific expression patterns of the ICE, CBF and COR genes, and identified similarities in the expression pattern of genes from the same family when subjected to drought, heat, drought plus heat, and cold stress. These results provide information for better understanding the biological roles of ICE, CBF, COR genes in wheat.
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Affiliation(s)
- Jie Guo
- College of Agronomy, Shanxi Agricultural University, Taigu, China
| | - Yongkang Ren
- Research Center of Biotechnology, Shanxi Academy of Agricultural Sciences, Taiyuan, China
| | - Zhaohui Tang
- College of Agronomy, Shanxi Agricultural University, Taigu, China.,Research Center of Biotechnology, Shanxi Academy of Agricultural Sciences, Taiyuan, China
| | - Weiping Shi
- College of Agronomy, Shanxi Agricultural University, Taigu, China
| | - Meixue Zhou
- College of Agronomy, Shanxi Agricultural University, Taigu, China.,School of Land and Food, University of Tasmania, Hobart, Australia
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25
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Yuan L, Xie S, Nie L, Zheng Y, Wang J, Huang J, Zhao M, Zhu S, Hou J, Chen G, Wang C. Comparative Proteomics Reveals Cold Acclimation Machinery Through Enhanced Carbohydrate and Amino Acid Metabolism in Wucai ( Brassica Campestris L.). PLANTS (BASEL, SWITZERLAND) 2019; 8:E474. [PMID: 31698739 PMCID: PMC6918420 DOI: 10.3390/plants8110474] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 05/30/2023]
Abstract
Limited information is available on the cold acclimation of non-heading Chinese cabbage (NHCC) under low temperatures. In this study, the isobaric tags for relative and absolute quantification (iTRAQ) were used to illustrate the molecular machinery of cold acclimation. Compared to the control (Cont), altogether, 89 differentially expressed proteins (DEPs) were identified in wucai leaves responding to low temperatures (LT). Among these proteins, 35 proteins were up-regulated ((and 54 were down-regulated). These differentially expressed proteins were categorized as having roles in carbohydrate metabolism, photosynthesis and energy metabolism, oxidative defense, amino acid metabolism, metabolic progress, cold regulation, methylation progress, and signal transduction. The fructose, glucose, and sucrose were dramatically increased in response to cold acclimation. It was firstly reported that aspartate, serine, glutamate, proline, and threonine were significantly accumulated under low temperatures. Results of quantitative real-time PCR analysis of nine DEPs displayed that the transcriptional expression patterns of six genes were consistent with their protein expression abundance. Our results demonstrated that wucai acclimated to low temperatures through regulating the expression of several crucial proteins. Additionally, carbohydrate and amino acid conversion played indispensable and vital roles in improving cold assimilation in wucai.
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Affiliation(s)
- Lingyun Yuan
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan 238200, China
| | - Shilei Xie
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
| | - Libing Nie
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
| | - Yushan Zheng
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
| | - Jie Wang
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
| | - Ju Huang
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
| | - Mengru Zhao
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
| | - Shidong Zhu
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan 238200, China
| | - Jinfeng Hou
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan 238200, China
| | - Guohu Chen
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan 238200, China
| | - Chenggang Wang
- Vegetable Genetics and Breeding Laboratory, College of Horticulture, Anhui Agricultural University, Hefei 230036, China; (L.Y.); (S.X.); (L.N.); (Y.Z.); (J.W.); (J.H.); (M.Z.); (S.Z.); (J.H.); (G.C.)
- Provincial Engineering Laboratory for Horticultural Crop Breeding of Anhui, Hefei 230036, China
- Wanjiang Vegetable Industrial Technology Institute, Maanshan 238200, China
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Li MY, Liu JX, Hao JN, Feng K, Duan AQ, Yang QQ, Xu ZS, Xiong AS. Genomic identification of AP2/ERF transcription factors and functional characterization of two cold resistance-related AP2/ERF genes in celery (Apium graveolens L.). PLANTA 2019; 250:1265-1280. [PMID: 31236696 DOI: 10.1007/s00425-019-03222-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/20/2019] [Indexed: 05/09/2023]
Abstract
This study analyzed the AP2/ERF transcription factors in celery and showed that two dehydration-responsive-element-binding (DREB) transcription factors, AgDREB1 and AgDREB2, contribute to the enhanced resistance to abiotic stress in transgenic Arabidopsis. The AP2/ERF family is a large family of transcription factors (TFs) in higher plants that plays a central role in plant growth, development, and response to environmental stress. Here, 209 AP2/ERF family members were identified in celery based on genomic and transcriptomic data. The TFs were classified into four subfamilies (i.e., DREB, ERF, RAV, and AP2) and Soloist. Evolution analysis indicated that the AP2/ERF TFs are ancient molecules and have expanded in the long-term evolution process of plants and whole-genome duplication events. AgAP2/ERF proteins may be associated with multiple biological processes as predicted by the interaction network. The expression profiles and sequence alignment analysis of the TFs in the DREB-A1 group showed that eight genes could be divided into four branches. Two genes, AgDREB1 and AgDREB2, from the DREB-A1 group were selected for further analysis. Subcellular localization assay suggested that the two proteins are nuclear proteins. Yeast one hybrid assay demonstrated that the two proteins could bind to the dehydration-responsive element (DRE). The overexpression of AgDREB1 and AgDREB2 in Arabidopsis induced the increased tolerance to cold treatment and the up-regulation of the COR genes expression. AgDREB1 and AgDREB2 might function as transcriptional activators in regulating the downstream genes by binding to corresponding DRE to enhance stress tolerance in celery.
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Affiliation(s)
- Meng-Yao Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Jie-Xia Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Jian-Nan Hao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Kai Feng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Ao-Qi Duan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Qing-Qing Yang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Zhi-Sheng Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China.
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27
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Wu TM, Huang JZ, Oung HM, Hsu YT, Tsai YC, Hong CY. H 2O 2-Based Method for Rapid Detection of Transgene-Free Rice Plants from Segregating CRISPR/Cas9 Genome-Edited Progenies. Int J Mol Sci 2019; 20:ijms20163885. [PMID: 31404948 PMCID: PMC6720670 DOI: 10.3390/ijms20163885] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/03/2019] [Accepted: 08/05/2019] [Indexed: 01/21/2023] Open
Abstract
Genome-editing techniques such as CRISPR/Cas9 have been widely used in crop functional genomics and improvement. To efficiently deliver the guide RNA and Cas9, most studies still rely on Agrobacterium-mediated transformation, which involves a selection marker gene. However, several limiting factors may impede the efficiency of screening transgene-free genome-edited plants, including the time needed to produce each life cycle, the response to selection reagents, and the labor costs of PCR-based genotyping. To overcome these disadvantages, we developed a simple and high-throughput method based on visual detection of antibiotics-derived H2O2 to verify transgene-free genome-edited plants. In transgenic rice containing hygromycin phosphotransferase (HPT), H2O2 content did not change in the presence of hygromycin B (HyB). In contrast, in transgenic-free rice plants with 10-h HyB treatment, levels of H2O2 and malondialdehyde, indicators of oxidative stress, were elevated. Detection of H2O2 by 3,3′-diaminobenzidine (DAB) staining suggested that H2O2 could be a marker to efficiently distinguish transgenic and non-transgenic plants. Analysis of 24 segregating progenies of an HPT-containing rice plant by RT-PCR and DAB staining verified that DAB staining is a feasible method for detecting transformants and non-transformants. Transgene-free genome-edited plants were faithfully validated by both PCR and the H2O2-based method. Moreover, HyB induced overproduction of H2O2 in leaves of Arabidopsis, maize, tobacco, and tomato, which suggests the potential application of the DAB method for detecting transgenic events containing HPT in a wide range of plant species. Thus, visual detection of DAB provides a simple, cheap, and reliable way to efficiently identify transgene-free genome-edited and HPT-containing transgenic rice.
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Affiliation(s)
- Tsung-Meng Wu
- Department of Agricultural Chemistry, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Jian-Zhi Huang
- Department of Agricultural Chemistry, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
| | - Hui-Min Oung
- Department of Agricultural Chemistry, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Ting Hsu
- Department of Agronomy, College of Agriculture and Natural Resources, National Chung-Hsing University, Taichung 10617, Taiwan
| | - Yu-Chang Tsai
- Department of Agronomy, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan.
| | - Chwan-Yang Hong
- Department of Agricultural Chemistry, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan.
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28
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Liu Y, Dang P, Liu L, He C. Cold acclimation by the CBF-COR pathway in a changing climate: Lessons from Arabidopsis thaliana. PLANT CELL REPORTS 2019; 38:511-519. [PMID: 30652229 PMCID: PMC6488690 DOI: 10.1007/s00299-019-02376-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/04/2019] [Indexed: 05/18/2023]
Abstract
Cold acclimation is a process used by most temperate plants to cope with freezing stress. In this process, the expression of cold-responsive (COR) genes is activated and the genes undergo physiological changes in response to the exposure to low, non-freezing temperatures and other environmental signals. The C-repeat-binding factors (CBFs) have been demonstrated to regulate the expression of many COR genes. Recent studies have elucidated the molecular mechanisms of how plants transmit cold signals from the plasma membrane to the CBFs and the results have indicated that COR genes are also regulated through CBF-independent pathways. Climate change is expected to have a major impact on cold acclimation and freezing tolerance of plants. However, how climate change affects plant cold acclimation at the molecular level remains unclear. This mini-review focuses on recent advances in cold acclimation in Arabidopsis thaliana and discusses how signaling can be potentially impacted by climate change. Understanding how plants acquire cold acclimation is valuable for the improvement of the freezing tolerance in plants and for predicting the effects of climate change on plant distribution and agricultural yield.
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Affiliation(s)
- Yukun Liu
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China (Southwest Forestry University), Ministry of Education, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming, 650224, Yunnan, People's Republic of China.
| | - Peiyu Dang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China (Southwest Forestry University), Ministry of Education, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming, 650224, Yunnan, People's Republic of China
| | - Lixia Liu
- School of Ecology and Landscape Architecture, Dezhou University, 566 West University Road, Dezhou, 253023, Shandong, People's Republic of China
| | - Chengzhong He
- Key Laboratory for Forest Genetic and Tree Improvement and Propagation in Universities of Yunnan Province, School of Life Sciences, Southwest Forestry University, 300 Bailong Si, Kunming, 650224, Yunnan, People's Republic of China.
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29
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Schubert M, Grønvold L, Sandve SR, Hvidsten TR, Fjellheim S. Evolution of Cold Acclimation and Its Role in Niche Transition in the Temperate Grass Subfamily Pooideae. PLANT PHYSIOLOGY 2019; 180:404-419. [PMID: 30850470 PMCID: PMC6501083 DOI: 10.1104/pp.18.01448] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/25/2019] [Indexed: 05/24/2023]
Abstract
The grass subfamily Pooideae dominates the grass floras in cold temperate regions and has evolved complex physiological adaptations to cope with extreme environmental conditions like frost, winter, and seasonality. One such adaptation is cold acclimation, wherein plants increase their frost tolerance in response to gradually falling temperatures and shorter days in the autumn. However, understanding how complex traits like cold acclimation evolve remains a major challenge in evolutionary biology. Here, we investigated the evolution of cold acclimation in Pooideae and found that a phylogenetically diverse set of Pooideae species displayed cold acclimation capacity. However, comparing differential gene expression after cold treatment in transcriptomes of five phylogenetically diverse species revealed widespread species-specific responses of genes with conserved sequences. Furthermore, we studied the correlation between gene family size and number of cold-responsive genes as well as between selection pressure on coding sequences of genes and their cold responsiveness. We saw evidence of protein-coding and regulatory sequence evolution as well as the origin of novel genes and functions contributing toward evolution of a cold response in Pooideae. Our results reflect that selection pressure resulting from global cooling must have acted on already diverged lineages. Nevertheless, conservation of cold-induced gene expression of certain genes indicates that the Pooideae ancestor may have possessed some molecular machinery to mitigate cold stress. Evolution of adaptations to seasonally cold climates is regarded as particularly difficult. How Pooideae evolved to transition from tropical to temperate biomes sheds light on how complex traits evolve in the light of climate changes.
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Affiliation(s)
- Marian Schubert
- Department of Plant Sciences, Norwegian University of Life Sciences, NO-1432 As, Norway
| | - Lars Grønvold
- Faculty of Chemistry, Biotechnology, and Food Science, Norwegian University of Life Sciences, NO-1432 As, Norway
| | - Simen R Sandve
- Centre for Integrative Genetics, Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, NO-1432 As, Norway
| | - Torgeir R Hvidsten
- Faculty of Chemistry, Biotechnology, and Food Science, Norwegian University of Life Sciences, NO-1432 As, Norway
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, SE-90187 Umea, Sweden
| | - Siri Fjellheim
- Department of Plant Sciences, Norwegian University of Life Sciences, NO-1432 As, Norway
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30
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Hill CB, Angessa TT, McFawn L, Wong D, Tibbits J, Zhang X, Forrest K, Moody D, Telfer P, Westcott S, Diepeveen D, Xu Y, Tan C, Hayden M, Li C. Hybridisation-based target enrichment of phenology genes to dissect the genetic basis of yield and adaptation in barley. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:932-944. [PMID: 30407713 PMCID: PMC6587706 DOI: 10.1111/pbi.13029] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/14/2018] [Accepted: 10/21/2018] [Indexed: 05/12/2023]
Abstract
Barley (Hordeum vulgare L.) is a major cereal grain widely used for livestock feed, brewing malts and human food. Grain yield is the most important breeding target for genetic improvement and largely depends on optimal timing of flowering. Little is known about the allelic diversity of genes that underlie flowering time in domesticated barley, the genetic changes that have occurred during breeding, and their impact on yield and adaptation. Here, we report a comprehensive genomic assessment of a worldwide collection of 895 barley accessions based on the targeted resequencing of phenology genes. A versatile target-capture method was used to detect genome-wide polymorphisms in a panel of 174 flowering time-related genes, chosen based on prior knowledge from barley, rice and Arabidopsis thaliana. Association studies identified novel polymorphisms that accounted for observed phenotypic variation in phenology and grain yield, and explained improvements in adaptation as a result of historical breeding of Australian barley cultivars. We found that 50% of genetic variants associated with grain yield, and 67% of the plant height variation was also associated with phenology. The precise identification of favourable alleles provides a genomic basis to improve barley yield traits and to enhance adaptation for specific production areas.
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Affiliation(s)
- Camilla Beate Hill
- Western Barley Genetics AllianceWestern Australian State Agricultural Biotechnology CentreSchool of Veterinary and Life SciencesMurdoch UniversityMurdochWAAustralia
| | - Tefera Tolera Angessa
- Western Barley Genetics AllianceWestern Australian State Agricultural Biotechnology CentreSchool of Veterinary and Life SciencesMurdoch UniversityMurdochWAAustralia
| | - Lee‐Anne McFawn
- Department of Primary Industries and Regional Development, Agriculture and FoodSouth PerthWAAustralia
| | - Debbie Wong
- Agriculture Victoria ResearchAgriBio, Centre for AgriBioscienceBundooraVic.Australia
| | - Josquin Tibbits
- Agriculture Victoria ResearchAgriBio, Centre for AgriBioscienceBundooraVic.Australia
| | - Xiao‐Qi Zhang
- Western Barley Genetics AllianceWestern Australian State Agricultural Biotechnology CentreSchool of Veterinary and Life SciencesMurdoch UniversityMurdochWAAustralia
| | - Kerrie Forrest
- Agriculture Victoria ResearchAgriBio, Centre for AgriBioscienceBundooraVic.Australia
| | | | - Paul Telfer
- Australian Grain Technologies Pty Ltd (AGT)RoseworthySAAustralia
| | - Sharon Westcott
- Department of Primary Industries and Regional Development, Agriculture and FoodSouth PerthWAAustralia
| | - Dean Diepeveen
- Department of Primary Industries and Regional Development, Agriculture and FoodSouth PerthWAAustralia
| | - Yanhao Xu
- Hubei Collaborative Innovation Centre for Grain IndustryYangtze UniversityJingzhouHubeiChina
| | - Cong Tan
- Western Barley Genetics AllianceWestern Australian State Agricultural Biotechnology CentreSchool of Veterinary and Life SciencesMurdoch UniversityMurdochWAAustralia
| | - Matthew Hayden
- Agriculture Victoria ResearchAgriBio, Centre for AgriBioscienceBundooraVic.Australia
- School of Applied Systems BiologyLa Trobe UniversityBundooraVic.Australia
| | - Chengdao Li
- Western Barley Genetics AllianceWestern Australian State Agricultural Biotechnology CentreSchool of Veterinary and Life SciencesMurdoch UniversityMurdochWAAustralia
- Department of Primary Industries and Regional Development, Agriculture and FoodSouth PerthWAAustralia
- Hubei Collaborative Innovation Centre for Grain IndustryYangtze UniversityJingzhouHubeiChina
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Balogh E, Halász J, Soltész A, Erös-Honti Z, Gutermuth Á, Szalay L, Höhn M, Vágújfalvi A, Galiba G, Hegedüs A. Identification, Structural and Functional Characterization of Dormancy Regulator Genes in Apricot ( Prunus armeniaca L.). FRONTIERS IN PLANT SCIENCE 2019; 10:402. [PMID: 31024581 PMCID: PMC6460505 DOI: 10.3389/fpls.2019.00402] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/18/2019] [Indexed: 05/12/2023]
Abstract
In the present study, we identified and characterized the apricot (Prunus armeniaca L.) homologs of three dormancy-related genes, namely the ParCBF1 (C-repeat binding factor), ParDAM5 (dormancy-associated MADS-BOX) and ParDAM6 genes. All highly conserved structural motifs and the 3D model of the DNA-binding domain indicate an unimpaired DNA-binding ability of ParCBF1. A phylogenetic analysis showed that ParCBF1 was most likely homologous to Prunus mume and Prunus dulcis CBF1. ParDAM5 also contained all characteristic domains of the type II (MIKCC) subfamily of MADS-box transcription factors. The homology modeling of protein domains and a phylogenetic analysis of ParDAM5 suggest its functional integrity. The amino acid positions or small motifs that are diagnostic characteristics of DAM5 and DAM6 were determined. For ParDAM6, only a small part of the cDNA was sequenced, which was sufficient for the quantification of gene expression. The expression of ParCBF1 showed close association with decreasing ambient temperatures in autumn and winter. The expression levels of ParDAM5 and ParDAM6 changed according to CBF1 expression rates and the fulfillment of cultivar chilling requirements (CR). The concomitant decrease of gene expression with endodormancy release is consistent with a role of ParDAM5 and ParDAM6 genes in dormancy induction and maintenance. Cultivars with higher CR and delayed flowering time showed higher expression levels of ParDAM5 and ParDAM6 toward the end of endodormancy. Differences in the timing of anther developmental stages between early- and late-flowering cultivars and two dormant seasons confirmed the genetically and environmentally controlled mechanisms of dormancy release in apricot generative buds. These results support that the newly identified apricot gene homologs have a crucial role in dormancy-associated physiological mechanisms.
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Affiliation(s)
- Eszter Balogh
- Department of Genetics and Plant Breeding, Faculty of Horticultural Science, Szent István University, Budapest, Hungary
| | - Júlia Halász
- Department of Genetics and Plant Breeding, Faculty of Horticultural Science, Szent István University, Budapest, Hungary
| | - Alexandra Soltész
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Zsolt Erös-Honti
- Department of Botany and Soroksár Botanical Garden, Faculty of Horticultural Science, Szent István University, Budapest, Hungary
| | - Ádám Gutermuth
- Department of Genetics and Plant Breeding, Faculty of Horticultural Science, Szent István University, Budapest, Hungary
| | - László Szalay
- Department of Pomology, Faculty of Horticultural Science, Szent István University, Budapest, Hungary
| | - Mária Höhn
- Department of Botany and Soroksár Botanical Garden, Faculty of Horticultural Science, Szent István University, Budapest, Hungary
| | - Attila Vágújfalvi
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Gábor Galiba
- Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Attila Hegedüs
- Department of Genetics and Plant Breeding, Faculty of Horticultural Science, Szent István University, Budapest, Hungary
- *Correspondence: Attila Hegedûs,
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Michel S, Löschenberger F, Hellinger J, Strasser V, Ametz C, Pachler B, Sparry E, Bürstmayr H. Improving and Maintaining Winter Hardiness and Frost Tolerance in Bread Wheat by Genomic Selection. FRONTIERS IN PLANT SCIENCE 2019; 10:1195. [PMID: 31632427 PMCID: PMC6781858 DOI: 10.3389/fpls.2019.01195] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/30/2019] [Indexed: 05/18/2023]
Abstract
Winter hardiness is a major constraint for autumn sown crops in temperate regions, and thus an important breeding goal in the development of new winter wheat varieties. Winter hardiness is though influenced by many environmental factors rendering phenotypic selection under field conditions a difficult task due to irregular occurrence or absence of winter damage in field trials. Controlled frost tolerance tests in growth chamber experiments are, on the other hand, even with few genotypes, often costly and laborious, which makes a genomic breeding strategy for early generation selection an attractive alternative. The aims of this study were thus to compare the merit of marker-assisted selection using the major frost tolerance QTL Fr-A2 with genomic prediction for winter hardiness and frost tolerance, and to assess the potential of combining both measures with a genomic selection index using a high density marker map or a reduced set of pre-selected markers. Cross-validation within two training populations phenotyped for frost tolerance and winter hardiness underpinned the importance of Fr-A2 for frost tolerance especially when upweighting its effect in genomic prediction models, while a combined genomic selection index increased the prediction accuracy for an independent validation population in comparison to training with winter hardiness data alone. The prediction accuracy could moreover be maintained with pre-selected marker sets, which is highly relevant when employing cost reducing fingerprinting techniques such as targeted genotyping-by-sequencing. Genomic selection showed thus large potential to improve or maintain the performance of winter wheat for these difficult, costly, and laborious to phenotype traits.
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Affiliation(s)
- Sebastian Michel
- Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences Vienna, Tulln, Austria
- *Correspondence: Sebastian Michel,
| | | | - Jakob Hellinger
- Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences Vienna, Tulln, Austria
| | - Verena Strasser
- Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences Vienna, Tulln, Austria
| | | | | | | | - Hermann Bürstmayr
- Department of Agrobiotechnology, IFA-Tulln, University of Natural Resources and Life Sciences Vienna, Tulln, Austria
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Du Z, Li J. Expression, purification and molecular characterization of a novel transcription factor KcCBF3 from Kandelia candel. Protein Expr Purif 2018; 153:26-34. [PMID: 30118861 DOI: 10.1016/j.pep.2018.08.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 08/06/2018] [Accepted: 08/13/2018] [Indexed: 11/28/2022]
Abstract
Kandelia candel, a major species of mangrove in the tropical and subtropical area, is susceptible to low temperature in winter. K. candel was introduced into Zhejiang Province (the northern margin of South China) several decades ago, and suffered from low temperature causing growth retardation, in server cases, even death. To explore the molecular mechanisms of cold acclimation in K. candel, a novel C-repeat binding factor gene KcCBF3 (Genbank accession no. KF111715) of 729 bp open reading frame (ORF) encoding a protein of 242 amino acid residues was isolated, expressed, purified and characterized. Multiple sequence alignment analysis revealed that KcCBF3 contained a highly conserved AP2/EREBP DNA-binding domain which consisting of 79 amino acid residues, as well as two CBF signature sequences. Phylogenetic analysis indicated that KcCBF3 belonged to the A-1 subgroup of DREB subfamily based on the classification of AP2/EREBP transcription factors in Arabidopsis. Semi-quantitative RT-PCR showed that KcCBF3 transcripts were highly accumulated in roots and leaves, and could be induced by low temperature. Electrophoresis mobility shift assay (EMSA) demonstrated KcCBF3 could bind to the core sequence (CCGAC) of cis-acting element C-repeat (CRT)/dehydration-responsive element (DRE) in vitro. These results implied that KcCBF3 might participate in the adaptation of K. candel to low-temperature stress by binding to CRT/DRE element.
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Affiliation(s)
- Zhaokui Du
- Zhejiang Provincial Key Laboratory of Plant Evolutionary and Conservation, Taizhou University, Taizhou, Zhejiang, 318000, PR China; Institute of Ecology, Taizhou University, Taizhou, Zhejiang, 318000, PR China
| | - Junmin Li
- Zhejiang Provincial Key Laboratory of Plant Evolutionary and Conservation, Taizhou University, Taizhou, Zhejiang, 318000, PR China; Institute of Ecology, Taizhou University, Taizhou, Zhejiang, 318000, PR China.
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Skinner DZ, Bellinger B, Hiscox W, Helms GL. Evidence of cyclical light/dark-regulated expression of freezing tolerance in young winter wheat plants. PLoS One 2018; 13:e0198042. [PMID: 29912979 PMCID: PMC6005534 DOI: 10.1371/journal.pone.0198042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/11/2018] [Indexed: 11/18/2022] Open
Abstract
The ability of winter wheat (Triticum aestivum L.) plants to develop freezing tolerance through cold acclimation is a complex rait that responds to many environmental cues including day length and temperature. A large part of the freezing tolerance is conditioned by the C-repeat binding factor (CBF) gene regulon. We investigated whether the level of freezing tolerance of 12 winter wheat lines varied throughout the day and night in plants grown under a constant low temperature and a 12-hour photoperiod. Freezing tolerance was significantly greater (P<0.0001) when exposure to subfreezing temperatures began at the midpoint of the light period, or the midpoint of the dark period, compared to the end of either period, with an average of 21.3% improvement in survival. Thus, freezing survival was related to the photoperiod, but cycled from low, to high, to low within each 12-hour light period and within each 12-hour dark period, indicating ultradian cyclic variation of freezing tolerance. Quantitative real-time PCR analysis of expression levels of CBF genes 14 and 15 indicated that expression of these two genes also varied cyclically, but essentially 180° out of phase with each other. Proton nuclear magnetic resonance analysis (1H-NMR) showed that the chemical composition of the wheat plants' cellular fluid varied diurnally, with consistent separation of the light and dark phases of growth. A compound identified as glutamine was consistently found in greater concentration in a strongly freezing-tolerant wheat line, compared to moderately and poorly freezing-tolerant lines. The glutamine also varied in ultradian fashion in the freezing-tolerant wheat line, consistent with the ultradian variation in freezing tolerance, but did not vary in the less-tolerant lines. These results suggest at least two distinct signaling pathways, one conditioning freezing tolerance in the light, and one conditioning freezing tolerance in the dark; both are at least partially under the control of the CBF regulon.
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Affiliation(s)
- Daniel Z. Skinner
- Department of Crop and Soil Sciences, Washington State University, Pullman, Washington, United States of America, US Department of Agriculture, Agricultural Research Service, Wheat Health, Genetics and Quality Research Unit, Pullman, Washington, United States of America
- * E-mail:
| | - Brian Bellinger
- Department of Crop and Soil Sciences, Washington State University, Pullman, Washington, United States of America, US Department of Agriculture, Agricultural Research Service, Wheat Health, Genetics and Quality Research Unit, Pullman, Washington, United States of America
| | - William Hiscox
- The Center for NMR Spectroscopy, Washington State University, Pullman, Washington, United States of America
| | - Gregory L. Helms
- The Center for NMR Spectroscopy, Washington State University, Pullman, Washington, United States of America
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Babben S, Schliephake E, Janitza P, Berner T, Keilwagen J, Koch M, Arana-Ceballos FA, Templer SE, Chesnokov Y, Pshenichnikova T, Schondelmaier J, Börner A, Pillen K, Ordon F, Perovic D. Association genetics studies on frost tolerance in wheat (Triticum aestivum L.) reveal new highly conserved amino acid substitutions in CBF-A3, CBF-A15, VRN3 and PPD1 genes. BMC Genomics 2018; 19:409. [PMID: 29843596 PMCID: PMC5975666 DOI: 10.1186/s12864-018-4795-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 05/14/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Understanding the genetic basis of frost tolerance (FT) in wheat (Triticum aestivum L.) is essential for preventing yield losses caused by frost due to cellular damage, dehydration and reduced metabolism. FT is a complex trait regulated by a number of genes and several gene families. Availability of the wheat genomic sequence opens new opportunities for exploring candidate genes diversity for FT. Therefore, the objectives of this study were to identity SNPs and insertion-deletion (indels) in genes known to be involved in frost tolerance and to perform association genetics analysis of respective SNPs and indels on FT. RESULTS Here we report on the sequence analysis of 19 candidate genes for FT in wheat assembled using the Chinese Spring IWGSC RefSeq v1.0. Out of these, the tandem duplicated C-repeat binding factors (CBF), i.e. CBF-A3, CBF-A5, CBF-A10, CBF-A13, CBF-A14, CBF-A15, CBF-A18, the vernalisation response gene VRN-A1, VRN-B3, the photoperiod response genes PPD-B1 and PPD-D1 revealed association to FT in 235 wheat cultivars. Within six genes (CBF-A3, CBF-A15, VRN-A1, VRN-B3, PPD-B1 and PPD-D1) amino acid (AA) substitutions in important protein domains were identified. The amino acid substitution effect in VRN-A1 on FT was confirmed and new AA substitutions in CBF-A3, CBF-A15, VRN-B3, PPD-B1 and PPD-D1 located at highly conserved sites were detected. Since these results rely on phenotypic data obtained at five locations in 2 years, detection of significant associations of FT to AA changes in CBF-A3, CBF-A15, VRN-A1, VRN-B3, PPD-B1 and PPD-D1 may be exploited in marker assisted breeding for frost tolerance in winter wheat. CONCLUSIONS A set of 65 primer pairs for the genes mentioned above from a previous study was BLASTed against the IWGSC RefSeq resulting in the identification of 39 primer combinations covering the full length of 19 genes. This work demonstrates the usefulness of the IWGSC RefSeq in specific primer development for highly conserved gene families in hexaploid wheat and, that a candidate gene association genetics approach based on the sequence data is an efficient tool to identify new alleles of genes important for the response to abiotic stress in wheat.
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Affiliation(s)
- Steve Babben
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Erwin-Baur-Str. 27, 06484 Quedlinburg, Saxony-Anhalt Germany
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Betty-Heimann-Str. 5, 06120 Halle (Saale), Saxony-Anhalt Germany
| | - Edgar Schliephake
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Erwin-Baur-Str. 27, 06484 Quedlinburg, Saxony-Anhalt Germany
| | - Philipp Janitza
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Betty-Heimann-Str. 5, 06120 Halle (Saale), Saxony-Anhalt Germany
| | - Thomas Berner
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Biosafety in Plant Biotechnology, Erwin-Baur-Str. 27, 06484 Quedlinburg, Saxony-Anhalt Germany
| | - Jens Keilwagen
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Biosafety in Plant Biotechnology, Erwin-Baur-Str. 27, 06484 Quedlinburg, Saxony-Anhalt Germany
| | - Michael Koch
- Deutsche Saatveredelung AG (DSV), Weißenburger Str. 5, 59557 Lippstadt, Nordrhein-Westfalen Germany
| | - Fernando Alberto Arana-Ceballos
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Resources Genetics and Reproduction, Correnstraße 3, 06466 Seeland OT Gatersleben, Saxony-Anhalt Germany
| | - Sven Eduard Templer
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Erwin-Baur-Str. 27, 06484 Quedlinburg, Saxony-Anhalt Germany
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9B, 50931 Cologne, Nordrhein-Westfalen Germany
| | - Yuriy Chesnokov
- Agrophysical Research Institute (AFI), Grazhdanskii prosp. 14, 195220 St. Petersburg, Russia
| | - Tatyana Pshenichnikova
- Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russia
| | - Jörg Schondelmaier
- Saaten-Union Biotec GmbH, Hovedisser Str. 94, 33818 Leopoldshoehe, Nordrhein-Westfalen Germany
| | - Andreas Börner
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Resources Genetics and Reproduction, Correnstraße 3, 06466 Seeland OT Gatersleben, Saxony-Anhalt Germany
| | - Klaus Pillen
- Martin Luther University Halle-Wittenberg (MLU), Institute of Agricultural and Nutritional Sciences, Betty-Heimann-Str. 3, 06120 Halle (Saale), Saxony-Anhalt Germany
| | - Frank Ordon
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Erwin-Baur-Str. 27, 06484 Quedlinburg, Saxony-Anhalt Germany
| | - Dragan Perovic
- Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Resistance Research and Stress Tolerance, Erwin-Baur-Str. 27, 06484 Quedlinburg, Saxony-Anhalt Germany
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Byun MY, Cui LH, Lee J, Park H, Lee A, Kim WT, Lee H. Identification of Rice Genes Associated With Enhanced Cold Tolerance by Comparative Transcriptome Analysis With Two Transgenic Rice Plants Overexpressing DaCBF4 or DaCBF7, Isolated From Antarctic Flowering Plant Deschampsia antarctica. FRONTIERS IN PLANT SCIENCE 2018; 9:601. [PMID: 29774046 PMCID: PMC5943562 DOI: 10.3389/fpls.2018.00601] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/16/2018] [Indexed: 05/25/2023]
Abstract
Few plant species can survive in Antarctica, the harshest environment for living organisms. Deschampsia antarctica is the only natural grass species to have adapted to and colonized the maritime Antarctic. To investigate the molecular mechanism of the Antarctic adaptation of this plant, we identified and characterized D. antarctica C-repeat binding factor 4 (DaCBF4), which belongs to monocot CBF group IV. The transcript level of DaCBF4 in D. antarctica was markedly increased by cold and dehydration stress. To assess the roles of DaCBF4 in plants, we generated a DaCBF4-overexpressing transgenic rice plant (Ubi:DaCBF4) and analyzed its abiotic stress response phenotype. Ubi:DaCBF4 displayed enhanced tolerance to cold stress without growth retardation under any condition compared to wild-type plants. Because the cold-specific phenotype of Ubi:DaCBF4 was similar to that of Ubi:DaCBF7 (Byun et al., 2015), we screened for the genes responsible for the improved cold tolerance in rice by selecting differentially regulated genes in both transgenic rice lines. By comparative transcriptome analysis using RNA-seq, we identified 9 and 15 genes under normal and cold-stress conditions, respectively, as putative downstream targets of the two D. antarctica CBFs. Overall, our results suggest that Antarctic hairgrass DaCBF4 mediates the cold-stress response of transgenic rice plants by adjusting the expression levels of a set of stress-responsive genes in transgenic rice plants. Moreover, selected downstream target genes will be useful for genetic engineering to enhance the cold tolerance of cereal plants, including rice.
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Affiliation(s)
- Mi Young Byun
- Unit of Polar Genomics, Korea Polar Research Institute, Incheon, South Korea
| | - Li Hua Cui
- Department of Systems Biology, Yonsei University, Seoul, South Korea
| | - Jungeun Lee
- Unit of Polar Genomics, Korea Polar Research Institute, Incheon, South Korea
- Polar Science, University of Science & Technology, Daejeon, South Korea
| | - Hyun Park
- Unit of Polar Genomics, Korea Polar Research Institute, Incheon, South Korea
- Polar Science, University of Science & Technology, Daejeon, South Korea
| | - Andosung Lee
- Department of Systems Biology, Yonsei University, Seoul, South Korea
| | - Woo Taek Kim
- Department of Systems Biology, Yonsei University, Seoul, South Korea
| | - Hyoungseok Lee
- Unit of Polar Genomics, Korea Polar Research Institute, Incheon, South Korea
- Polar Science, University of Science & Technology, Daejeon, South Korea
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Jin Y, Zhai S, Wang W, Ding X, Guo Z, Bai L, Wang S. Identification of genes from the ICE-CBF-COR pathway under cold stress in Aegilops- Triticum composite group and the evolution analysis with those from Triticeae. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2018. [PMID: 29515316 PMCID: PMC5834981 DOI: 10.1007/s12298-017-0495-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Adverse environmental conditions limit various aspects of plant growth, productivity, and ecological distribution. To get more insights into the signaling pathways under low temperature, we identified 10 C-repeat binding factors (CBFs), 9 inducer of CBF expression (ICEs) and 10 cold-responsive (CORs) genes from Aegilops-Triticum composite group under cold stress. Conserved amino acids analysis revealed that all CBF, ICE, COR contained specific and typical functional domains. Phylogenetic analysis of CBF proteins from Triticeae showed that these CBF homologs were divided into 11 groups. CBFs from Triticum were found in every group, which shows that these CBFs generated prior to the divergence of the subfamilies of Triticeae. The evolutionary relationship among the ICE and COR proteins in Poaceae were divided into four groups with high multispecies specificity, respectively. Moreover, expression analysis revealed that mRNA accumulation was altered by cold treatment and the genes of three types involved in the ICE-CBF-COR signaling pathway were induced by cold stress. Together, the results make CBF, ICE, COR genes family in Triticeae more abundant, and provide a starting point for future studies on transcriptional regulatory network for improvement of chilling tolerance in crop.
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Affiliation(s)
- Ya’nan Jin
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
- College of Agronomy, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Shanshan Zhai
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Wenjia Wang
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Xihan Ding
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Zhifu Guo
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Liping Bai
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
| | - Shu Wang
- College of Agronomy, Shenyang Agricultural University, Shenyang, 110866 Liaoning China
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Kalapos B, Novák A, Dobrev P, Vítámvás P, Marincs F, Galiba G, Vanková R. Effect of the Winter Wheat Cheyenne 5A Substituted Chromosome on Dynamics of Abscisic Acid and Cytokinins in Freezing-Sensitive Chinese Spring Genetic Background. FRONTIERS IN PLANT SCIENCE 2017; 8:2033. [PMID: 29238355 PMCID: PMC5712565 DOI: 10.3389/fpls.2017.02033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 11/14/2017] [Indexed: 06/07/2023]
Abstract
The effect of short- and long-term cold treatment on the abscisic acid (ABA) and cytokinin (CK) metabolism, and their main biosynthesis- and signaling-related genes were investigated in freezing-sensitive and freezing-tolerant wheat genotypes. Varieties Cheyenne and Chinese Spring substituted with the 5A Cheyenne chromosome, which represented freezing-tolerant genotypes, were compared with the freezing-sensitive Chinese Spring. Hormone levels and gene expression data indicated that the short- and long-term cold treatments are associated with specific regulation of the accumulation of cold-protective proteins and phytohormone levels, as well as the expression profiles of the hormone-related genes. The significant differences were observed between the genotypes, and between their leaf and crown tissues, too. The level of dehydrins, including WCS120 protein, and expression of WCS120 gene were considerably higher in the freezing-tolerant genotypes after 21 days of cold treatment. Expression of Cor14b and CBF14, cold-responsive regulator genes, was increased by cold treatment in all genotypes, to higher extent in freezing-tolerant genotypes. Cluster analysis revealed that the tolerant genotypes had a similar response to cold treatment, regarding expression of the ABA and CK metabolic genes, as well as hormone levels in leaves. As far as hormone levels in crowns are concerned, however, the strongly freezing-tolerant Cheyenne variety clustered separately from the Chinese Spring and the substitution line, which were more similar to each other after both 1 and 21 days of cold treatment than to Cheyenne. Based on these results we concluded that the 5A chromosome of wheat might have both a direct and an indirect impact on the phytohormone-dependent cold-induced freezing tolerance. Based on the gene expression data, novel genetic markers could be developed, which may be used to determine the freezing tolerance level in a wide range of wheat varieties.
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Affiliation(s)
- Balázs Kalapos
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Aliz Novák
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Petre Dobrev
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czechia
| | - Pavel Vítámvás
- Department of Genetics and Plant Breeding, Crop Research Institute, Prague, Czechia
| | - Ferenc Marincs
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Agricultural Biotechnology Institute, National Agricultural Research and Innovation Centre, Gödöllő, Hungary
| | - Gábor Galiba
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Radomira Vanková
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czechia
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Wang DZ, Jin YN, Ding XH, Wang WJ, Zhai SS, Bai LP, Guo ZF. Gene Regulation and Signal Transduction in the ICE-CBF-COR Signaling Pathway during Cold Stress in Plants. BIOCHEMISTRY (MOSCOW) 2017; 82:1103-1117. [PMID: 29037131 DOI: 10.1134/s0006297917100030] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Low temperature is an abiotic stress that adversely affects the growth and production of plants. Resistance and adaptation of plants to cold stress is dependent upon the activation of molecular networks and pathways involved in signal transduction and the regulation of cold-stress related genes. Because it has numerous and complex genes, regulation factors, and pathways, research on the ICE-CBF-COR signaling pathway is the most studied and detailed, which is thought to be rather important for cold resistance of plants. In this review, we focus on the function of each member, interrelation among members, and the influence of manipulators and repressors in the ICE-CBF-COR pathway. In addition, regulation and signal transduction concerning plant hormones, circadian clock, and light are discussed. The studies presented provide a detailed picture of the ICE-CBF-COR pathway.
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Affiliation(s)
- Da-Zhi Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China.
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Dhillon T, Morohashi K, Stockinger EJ. CBF2A-CBF4B genomic region copy numbers alongside the circadian clock play key regulatory mechanisms driving expression of FR-H2 CBFs. PLANT MOLECULAR BIOLOGY 2017; 94:333-347. [PMID: 28434151 DOI: 10.1007/s11103-017-0610-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 03/31/2017] [Indexed: 06/07/2023]
Abstract
The C-Repeat Binding Factors (CBFs) are DNA-binding transcriptional activators that were identified using Arabidopsis thaliana. In barley, Hordeum vulgare, a cluster of CBF genes reside at FROST RESISTANCE-H2, one of two loci having major effects on winter-hardiness. FR-H2 was revealed in a population derived from the winter barley 'Nure' and the spring barley 'Trèmois'. 'Nure' harbors two to three copies of CBF2A and CBF4B as a consequence of tandem iteration of the genomic region encompassing these genes whereas 'Trèmois' harbors single copies, and these copy number differences are associated with their transcript level differences. Here we explore further the relationship between FR-H2 CBF gene copy number and transcript levels using 'Admire', a winter barley accumulating FR-H2 CBF gene transcripts to very high levels, and a group of lines related to 'Admire' through descent. DNA blot hybridization indicated the CBF2A-CBF4B genomic region is present in 7-8 copies in 'Admire' and is highly variable in copy number across the lines related to 'Admire'. At normal growth temperatures transcript levels of CBF12, CBF14, and CBF16 were higher in lines having greater CBF2A-CBF4B genomic region copy numbers than in lines having fewer copy numbers at peak expression level time points controlled by the circadian clock. Chromatin immunoprecipitation indicated CBF2 was at the CBF12 and CBF16 promoters at normal growth temperatures. These data support a scenario in which CBF2A-CBF4B genomic region copy numbers affect expression of other FR-H2 CBFs through a mechansim in which these other FR-H2 CBFs are activated by those in the copy number variable unit.
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Affiliation(s)
- Taniya Dhillon
- Department of Horticulture and Crop Science, The Ohio State University/Ohio Agricultural Research and Development Center (OARDC), Wooster, OH, 44691, USA
| | - Kengo Morohashi
- Center for Applied Plant Sciences, The Ohio State University, Columbus, OH, 43210, USA
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, 278-8510, Japan
| | - Eric J Stockinger
- Department of Horticulture and Crop Science, The Ohio State University/Ohio Agricultural Research and Development Center (OARDC), Wooster, OH, 44691, USA.
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Novák A, Boldizsár Á, Gierczik K, Vágújfalvi A, Ádám É, Kozma-Bognár L, Galiba G. Light and Temperature Signalling at the Level of CBF14 Gene Expression in Wheat and Barley. PLANT MOLECULAR BIOLOGY REPORTER 2017; 35:399-408. [PMID: 28751800 PMCID: PMC5504222 DOI: 10.1007/s11105-017-1035-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The wheat and barley CBF14 genes have been newly defined as key components of the light quality-dependent regulation of the freezing tolerance by the integration of phytochrome-mediated light and temperature signals. To further investigate the wavelength dependence of light-induced CBF14 expression in cereals, we carried out a detailed study using monochromatic light treatments at an inductive and a non-inductive temperature. Transcript levels of CBF14 gene in winter wheat Cheyenne, winter einkorn G3116 and winter barley Nure genotypes were monitored. We demonstrated that (1) CBF14 is most effectively induced by blue light and (2) provide evidence that this induction does not arise from light-controlled CRY gene expression. (3) We demonstrate that temperature shifts induce CBF14 transcription independent of the light conditions and that (4) the effect of temperature and light treatments are additive. Based on these data, it can be assumed that temperature and light signals are relayed to the level of CBF14 expression via separate signalling routes.
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Affiliation(s)
- Aliz Novák
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Ákos Boldizsár
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Krisztián Gierczik
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Attila Vágújfalvi
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
| | - Éva Ádám
- Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - László Kozma-Bognár
- Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
- Department of Genetics, Faculty of Sciences and Informatics, University of Szeged, Szeged, Hungary
| | - Gábor Galiba
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
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Agarwal PK, Gupta K, Lopato S, Agarwal P. Dehydration responsive element binding transcription factors and their applications for the engineering of stress tolerance. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:2135-2148. [PMID: 28419345 DOI: 10.1093/jxb/erx118] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Dehydration responsive element binding (DREB) factors or CRT element binding factors (CBFs) are members of the AP2/ERF family, which comprises a large number of stress-responsive regulatory genes. This review traverses almost two decades of research, from the discovery of DREB/CBF factors to their optimization for application in plant biotechnology. In this review, we describe (i) the discovery, classification, structure, and evolution of DREB genes and proteins; (ii) induction of DREB genes by abiotic stresses and involvement of their products in stress responses; (iii) protein structure and DNA binding selectivity of different groups of DREB proteins; (iv) post-transcriptional and post-translational mechanisms of DREB transcription factor (TF) regulation; and (v) physical and/or functional interaction of DREB TFs with other proteins during plant stress responses. We also discuss existing issues in applications of DREB TFs for engineering of enhanced stress tolerance and improved performance under stress of transgenic crop plants.
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Affiliation(s)
- Pradeep K Agarwal
- Plant Omics Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Gijubhai Badheka Marg, Bhavnagar-364 002, (Gujarat), India
| | - Kapil Gupta
- Plant Omics Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Gijubhai Badheka Marg, Bhavnagar-364 002, (Gujarat), India
| | - Sergiy Lopato
- School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA 5064, Australia
| | - Parinita Agarwal
- Plant Omics Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Gijubhai Badheka Marg, Bhavnagar-364 002, (Gujarat), India
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43
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Gulyás Z, Simon-Sarkadi L, Badics E, Novák A, Mednyánszky Z, Szalai G, Galiba G, Kocsy G. Redox regulation of free amino acid levels in Arabidopsis thaliana. PHYSIOLOGIA PLANTARUM 2017; 159:264-276. [PMID: 27605256 DOI: 10.1111/ppl.12510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/18/2016] [Accepted: 08/20/2016] [Indexed: 06/06/2023]
Abstract
Abiotic stresses induce oxidative stress, which modifies the level of several metabolites including amino acids. The redox control of free amino acid profile was monitored in wild-type and ascorbate or glutathione deficient mutant Arabidopsis thaliana plants before and after hydroponic treatment with various redox agents. Both mutations and treatments modified the size and redox state of the ascorbate (AsA) and/or glutathione (GSH) pools. The total free amino acid content was increased by AsA, GSH and H2 O2 in all three genotypes and a very large (threefold) increase was observed in the GSH-deficient pad2-1 mutant after GSH treatment compared with the untreated wild-type plants. Addition of GSH reduced the ratio of amino acids belonging to the glutamate family on a large scale and increased the relative amount of non-proteinogenic amino acids. The latter change was because of the large increase in the content of alpha-aminoadipate, an inhibitor of glutamatic acid (Glu) transport. Most of the treatments increased the proline (Pro) content, which effect was due to the activation of genes involved in Pro synthesis. Although all studied redox compounds influenced the amount of free amino acids and a mostly positive, very close (r > 0.9) correlation exists between these parameters, a special regulatory role of GSH could be presumed due to its more powerful effect. This may originate from the thiol/disulphide conversion or (de)glutathionylation of enzymes participating in the amino acid metabolism.
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Affiliation(s)
- Zsolt Gulyás
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, H-2462, Hungary
| | - Livia Simon-Sarkadi
- Department of Food Chemistry and Nutrition, Szent István University, Budapest, H-1118, Hungary
| | - Eszter Badics
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, H-2462, Hungary
| | - Aliz Novák
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, H-2462, Hungary
| | - Zsuzsanna Mednyánszky
- Department of Food Chemistry and Nutrition, Szent István University, Budapest, H-1118, Hungary
| | - Gabriella Szalai
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, H-2462, Hungary
| | - Gábor Galiba
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, H-2462, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, H-8360, Hungary
| | - Gábor Kocsy
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, Martonvásár, H-2462, Hungary
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Zong Y, Xi X, Li S, Chen W, Zhang B, Liu D, Liu B, Wang D, Zhang H. Allelic Variation and Transcriptional Isoforms of Wheat TaMYC1 Gene Regulating Anthocyanin Synthesis in Pericarp. FRONTIERS IN PLANT SCIENCE 2017; 8:1645. [PMID: 28983311 PMCID: PMC5613136 DOI: 10.3389/fpls.2017.01645] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 09/07/2017] [Indexed: 05/20/2023]
Abstract
Recently the TaMYC1 gene encoding bHLH transcription factor has been isolated from the bread wheat (Triticum aestivum L.) genome and shown to co-locate with the Pp3 gene conferring purple pericarp color. As a functional evidence of TaMYC1 and Pp3 being the same, higher transcriptional activity of the TaMYC1 gene in colored pericarp compared to uncolored one has been demonstrated. In the current study, we present additional strong evidences of TaMYC1 to be a synonym of Pp3. Furthermore, we have found differences between dominant and recessive Pp3(TaMyc1) alleles. Light enhancement of TaMYC1 transcription was paralleled with increased AP accumulation only in purple-grain wheat. Coexpression of TaMYC1 and the maize MYB TF gene ZmC1 induced AP accumulation in the coleoptile of white-grain wheat. Suppression of TaMYC1 significantly reduced AP content in purple grains. Two distinct TaMYC1 alleles (TaMYC1p and TaMYC1w) were isolated from purple- and white-grained wheat, respectively. A unique, compound cis-acting regulatory element had six copies in the promoter of TaMYC1p, but was present only once in TaMYC1w. Analysis of recombinant inbred lines showed that TaMYC1p was necessary but not sufficient for AP accumulation in the pericarp tissues. Examination of larger sets of germplasm lines indicated that the evolution of purple pericarp in tetraploid wheat was accompanied by the presence of TaMYC1p. Our findings may promote more systematic basic and applied studies of anthocyanins in common wheat and related Triticeae crops.
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Affiliation(s)
- Yuan Zong
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai UniversityXining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
| | - Xinyuan Xi
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
- University of Chinese Academy of SciencesBeijing, China
| | - Shiming Li
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
| | - Wenjie Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
| | - Bo Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
| | - Dengcai Liu
- Triticeae Research Institute, Sichuan Agricultural UniversityChengdu, China
| | - Baolong Liu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
- *Correspondence: Baolong Liu
| | - Daowen Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijing, China
- Daowen Wang
| | - Huaigang Zhang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai UniversityXining, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
- Huaigang Zhang
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45
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Francia E, Morcia C, Pasquariello M, Mazzamurro V, Milc JA, Rizza F, Terzi V, Pecchioni N. Copy number variation at the HvCBF4-HvCBF2 genomic segment is a major component of frost resistance in barley. PLANT MOLECULAR BIOLOGY 2016; 92:161-75. [PMID: 27338258 DOI: 10.1007/s11103-016-0505-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 06/02/2016] [Indexed: 05/27/2023]
Abstract
A family of CBF transcription factors plays a major role in reconfiguring the plant transcriptome in response to low-freezing temperature in temperate cereals. In barley, more than 13 HvCBF genes map coincident with the major QTL FR-H2 suggesting them as candidates to explain the function of the locus. Variation in copy number (CNV) of specific HvCBFs was assayed in a panel of 41 barley genotypes using RT-qPCR. Taking advantage of an accurate phenotyping that combined Fv/Fm and field survival, resistance-associated variants within FR-H2 were identified. Genotypes with an increased copy number of HvCBF4 and HvCBF2 (at least ten and eight copies, respectively) showed greater frost resistance. A CAPS marker able to distinguish the CBF2A, CBF2B and CBF2A/B forms was developed and showed that all the higher-ranking genotypes in term of resistance harbour only CBF2A, while other resistant winter genotypes harbour also CBF2B, although at a lower CNV. In addition to the major involvement of the HvCBF4-HvCBF2 genomic segment in the proximal cluster of CBF elements, a negative role of HvCBF3 in the distal cluster was identified. Multiple linear regression models taking into account allelic variation at FR-H1/VRN-H1 explained 0.434 and 0.550 (both at p < 0.001) of the phenotypic variation for Fv/Fm and field survival respectively, while no interaction effect between CNV at the HvCBFs and FR-H1/VRN-H1 was found. Altogether our data suggest a major involvement of the CBF genes located in the proximal cluster, with no apparent involvement of the central cluster contrary to what was reported for wheat.
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Affiliation(s)
- Enrico Francia
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, Pad.Besta, 42122, Reggio Emilia, Italy.
- Center for Genome Research (CGR), University of Modena and Reggio Emilia, Via Campi 287, 41125, Modena, Italy.
| | - Caterina Morcia
- Genomics Research Centre (GPG), Council for Agricultural Research and Economics, Via San Protaso 302, 29017, Fiorenzuola d'Arda, Italy
| | - Marianna Pasquariello
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, Pad.Besta, 42122, Reggio Emilia, Italy
- Department of Crop Genetics, John Innes Centre (JIC), Norwich Research Park, Norwich, NR4 7UH, UK
| | - Valentina Mazzamurro
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, Pad.Besta, 42122, Reggio Emilia, Italy
| | - Justyna Anna Milc
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, Pad.Besta, 42122, Reggio Emilia, Italy
- Center for Genome Research (CGR), University of Modena and Reggio Emilia, Via Campi 287, 41125, Modena, Italy
| | - Fulvia Rizza
- Genomics Research Centre (GPG), Council for Agricultural Research and Economics, Via San Protaso 302, 29017, Fiorenzuola d'Arda, Italy
| | - Valeria Terzi
- Genomics Research Centre (GPG), Council for Agricultural Research and Economics, Via San Protaso 302, 29017, Fiorenzuola d'Arda, Italy
| | - Nicola Pecchioni
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, Pad.Besta, 42122, Reggio Emilia, Italy
- Center for Genome Research (CGR), University of Modena and Reggio Emilia, Via Campi 287, 41125, Modena, Italy
- Cereal Research Centre, Council for Agricultural Research and Economics, 71122, Foggia, Italy
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Kovalchuk N, Chew W, Sornaraj P, Borisjuk N, Yang N, Singh R, Bazanova N, Shavrukov Y, Guendel A, Munz E, Borisjuk L, Langridge P, Hrmova M, Lopato S. The homeodomain transcription factor TaHDZipI-2 from wheat regulates frost tolerance, flowering time and spike development in transgenic barley. THE NEW PHYTOLOGIST 2016; 211:671-87. [PMID: 26990681 DOI: 10.1111/nph.13919] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 02/02/2016] [Indexed: 05/20/2023]
Abstract
Homeodomain leucine zipper class I (HD-Zip I) transcription factors (TFs) play key roles in the regulation of plant growth and development under stresses. Functions of the TaHDZipI-2 gene isolated from the endosperm of developing wheat grain were revealed. Molecular characterization of TaHDZipI-2 protein included studies of its dimerisation, protein-DNA interactions and gene activation properties using pull-down assays, in-yeast methods and transient expression assays in wheat cells. The analysis of TaHDZipI-2 gene functions was performed using transgenic barley plants. It included comparison of developmental phenotypes, yield components, grain quality, frost tolerance and the levels of expression of potential target genes in transgenic and control plants. Transgenic TaHDZipI-2 lines showed characteristic phenotypic features that included reduced growth rates, reduced biomass, early flowering, light-coloured leaves and narrowly elongated spikes. Transgenic lines produced 25-40% more seeds per spike than control plants, but with 50-60% smaller grain size. In vivo lipid imaging exposed changes in the distribution of lipids between the embryo and endosperm in transgenic seeds. Transgenic lines were significantly more tolerant to frost than control plants. Our data suggest the role of TaHDZipI-2 in controlling several key processes underlying frost tolerance, transition to flowering and spike development.
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Affiliation(s)
- Nataliya Kovalchuk
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - William Chew
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Pradeep Sornaraj
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Nikolai Borisjuk
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Nannan Yang
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Rohan Singh
- Australian Research Council Centre of Excellence in Plant Cell Walls, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Natalia Bazanova
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Yuri Shavrukov
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Andre Guendel
- Department of Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research, D-06466, Gatersleben, Germany
| | - Eberhard Munz
- Department of Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research, D-06466, Gatersleben, Germany
| | - Ljudmilla Borisjuk
- Department of Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research, D-06466, Gatersleben, Germany
| | - Peter Langridge
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Maria Hrmova
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
| | - Sergiy Lopato
- Australian Centre for Plant Functional Genomics, School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia
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47
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Gao Q, Li X, Jia J, Zhao P, Liu P, Liu Z, Ge L, Chen S, Qi D, Deng B, Lee BH, Liu G, Cheng L. Overexpression of a novel cold-responsive transcript factor LcFIN1 from sheepgrass enhances tolerance to low temperature stress in transgenic plants. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:861-74. [PMID: 26234381 DOI: 10.1111/pbi.12435] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 06/14/2015] [Accepted: 06/16/2015] [Indexed: 05/24/2023]
Abstract
As a perennial forage crop broadly distributed in eastern Eurasia, sheepgrass (Leymus chinensis (Trin.) Tzvel) is highly tolerant to low-temperature stress. Previous report indicates that sheepgrass is able to endure as low as -47.5 °C,allowing it to survive through the cold winter season. However, due to the lack of sufficient studies, the underlying mechanism towards the extraordinary low-temperature tolerance is unclear. Although the transcription profiling has provided insight into the transcriptome response to cold stress, more detailed studies are required to dissect the molecular mechanism regarding the excellent abiotic stress tolerance. In this work, we report a novel transcript factor LcFIN1 (L. chinensis freezing-induced 1) from sheepgrass. LcFIN1 showed no homology with other known genes and was rapidly and highly induced by cold stress, suggesting that LcFIN1 participates in the early response to cold stress. Consistently, ectopic expression of LcFIN1 significantly increased cold stress tolerance in the transgenic plants, as indicated by the higher survival rate, fresh weight and other stress-related indexes after a freezing treatment. Transcriptome analysis showed that numerous stress-related genes were differentially expressed in LcFIN1-overexpressing plants, suggesting that LcFIN1 may enhance plant abiotic stress tolerance by transcriptional regulation. Electrophoretic mobility shift assays and CHIP-qPCR showed that LcCBF1 can bind to the CRT/DRE cis-element located in the promoter region of LcFIN1, suggesting that LcFIN1 is directly regulated by LcCBF1. Taken together, our results suggest that LcFIN1 positively regulates plant adaptation response to cold stress and is a promising candidate gene to improve crop cold tolerance.
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Affiliation(s)
- Qiong Gao
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoxia Li
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
| | - Junting Jia
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Pincang Zhao
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Panpan Liu
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhujiang Liu
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Liangfa Ge
- Plant Biology Division, Samuel Roberts Noble Foundation, Ardmore, OK, USA
| | - Shuangyan Chen
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
| | - Dongmei Qi
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
| | - Bo Deng
- Department of Grassland Science, College of Animal Science and Technology, China Agriculture University, Beijing, China
| | - Byung-Hyun Lee
- Division of Applied Life Science (BK21 Program), IALS, PMBBRC, Gyeongsang National University, Jinju, Korea
| | - Gongshe Liu
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
| | - Liqin Cheng
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
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48
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Novák A, Boldizsár Á, Ádám É, Kozma-Bognár L, Majláth I, Båga M, Tóth B, Chibbar R, Galiba G. Light-quality and temperature-dependent CBF14 gene expression modulates freezing tolerance in cereals. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:1285-95. [PMID: 26712822 DOI: 10.1093/jxb/erv526] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
UNLABELLED C-repeat binding factor 14 (CBF14) is a plant transcription factor that regulates a set of cold-induced genes, contributing to enhanced frost tolerance during cold acclimation. Many CBF genes are induced by cool temperatures and regulated by day length and light quality, which affect the amount of accumulated freezing tolerance. Here we show that a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn), which has a relatively low freezing tolerance. Low red to far-red ratio enhances the expression of PHYA in all three species, but induces PHYB expression only in einkorn. Based on our results, a model is proposed to illustrate the supposed positive effect of phytochrome A and the negative influence of phytochrome B on the enhancement of freezing tolerance in cereals in response to spectral changes of incident light. KEY WORDS CBF-regulon, barley, cereals, cold acclimation, freezing tolerance, light regulation, low red/far-red ratio, phytochrome, wheat.
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Affiliation(s)
- Aliz Novák
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary Doctoral School of Molecular- and Nanotechnologies, Research Institute of Chemical and Process Engineering, Faculty of Information Technology, University of Pannonia, 8200 Veszprém, Hungary
| | - Ákos Boldizsár
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary
| | - Éva Ádám
- Biological Research Centre, Hungarian Academy of Sciences, 6726 Szeged, Hungary
| | - László Kozma-Bognár
- Biological Research Centre, Hungarian Academy of Sciences, 6726 Szeged, Hungary
| | - Imre Majláth
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary
| | - Monica Båga
- Department of Plant Sciences, University of Saskatchewan, S7N 5A8 Saskatoon, Saskatchewan, Canada
| | - Balázs Tóth
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary Doctoral School of Molecular- and Nanotechnologies, Research Institute of Chemical and Process Engineering, Faculty of Information Technology, University of Pannonia, 8200 Veszprém, Hungary
| | - Ravindra Chibbar
- Department of Plant Sciences, University of Saskatchewan, S7N 5A8 Saskatoon, Saskatchewan, Canada
| | - Gábor Galiba
- Agricultural Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, 2462 Martonvásár, Hungary Festetics Doctoral School, Department of Meteorology and Water Management, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary
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Chen L, Han J, Deng X, Tan S, Li L, Li L, Zhou J, Peng H, Yang G, He G, Zhang W. Expansion and stress responses of AP2/EREBP superfamily in Brachypodium distachyon. Sci Rep 2016; 6:21623. [PMID: 26869021 PMCID: PMC4751504 DOI: 10.1038/srep21623] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 01/26/2016] [Indexed: 11/09/2022] Open
Abstract
APETALA2/ethylene-responsive element binding protein (AP2/EREBP) transcription factors constitute one of the largest and most conserved gene families in plant, and play essential roles in growth, development and stress response. Except a few members, the AP2/EREBP family has not been characterized in Brachypodium distachyon, a model plant of Poaceae. We performed a genome-wide study of this family in B. distachyon by phylogenetic analyses, transactivation assays and transcript profiling. A total of 149 AP2/EREBP genes were identified and divided into four subfamilies, i.e., ERF (ethylene responsive factor), DREB (dehydration responsive element binding gene), RAV (related to ABI3/VP) and AP2. Tandem duplication was a major force in expanding B. distachyon AP2/EREBP (BdAP2/EREBP) family. Despite a significant expansion, genomic organizations of BdAP2/EREBPs were monotonous as the majority of them, except those of AP2 subfamily, had no intron. An analysis of transcription activities of several closely related and duplicated BdDREB genes showed their functional divergence and redundancy in evolution. The expression of BdAP2/EREBPs in different tissues and the expression of DREB/ERF subfamilies in B. distachyon, wheat and rice under abiotic stresses were investigated by next-generation sequencing and microarray profiling. Our results are valuable for further function analysis of stress tolerant AP2/EREBP genes in B. distachyon.
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Affiliation(s)
- Lihong Chen
- The Institute for Systems Biology, Jianghan University, Wuhan 430056, China
| | - Jiapeng Han
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Chinese National Center of Plant Gene Research (Wuhan) HUST Part, College of Life Science and Technology, Huazhong University of Science &Technology (HUST), Wuhan 430074, China
| | - Xiaomin Deng
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China
| | - Shenglong Tan
- School of Information Engineering, Hubei University of Economics, Wuhan 430205, China
| | - Lili Li
- The Institute for Systems Biology, Jianghan University, Wuhan 430056, China
| | - Lun Li
- The Institute for Systems Biology, Jianghan University, Wuhan 430056, China
| | - Junfei Zhou
- The Institute for Systems Biology, Jianghan University, Wuhan 430056, China
| | - Hai Peng
- The Institute for Systems Biology, Jianghan University, Wuhan 430056, China
| | - Guangxiao Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Chinese National Center of Plant Gene Research (Wuhan) HUST Part, College of Life Science and Technology, Huazhong University of Science &Technology (HUST), Wuhan 430074, China
| | - Guangyuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Chinese National Center of Plant Gene Research (Wuhan) HUST Part, College of Life Science and Technology, Huazhong University of Science &Technology (HUST), Wuhan 430074, China
| | - Weixiong Zhang
- The Institute for Systems Biology, Jianghan University, Wuhan 430056, China.,Department of Computer Science and Engineering and Department of Genetics, Washington University, St. Louis, MO 36130, USA
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50
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Song X, Wang J, Ma X, Li Y, Lei T, Wang L, Ge W, Guo D, Wang Z, Li C, Zhao J, Wang X. Origination, Expansion, Evolutionary Trajectory, and Expression Bias of AP2/ERF Superfamily in Brassica napus. FRONTIERS IN PLANT SCIENCE 2016; 7:1186. [PMID: 27570529 PMCID: PMC4982375 DOI: 10.3389/fpls.2016.01186] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 07/22/2016] [Indexed: 05/03/2023]
Abstract
The AP2/ERF superfamily, one of the most important transcription factor families, plays crucial roles in response to biotic and abiotic stresses. So far, a comprehensive evolutionary inference of its origination and expansion has not been available. Here, we identified 515 AP2/ERF genes in B. napus, a neo-tetraploid forming ~7500 years ago, and found that 82.14% of them were duplicated in the tetraploidization. A prominent subgenome bias was revealed in gene expression, tissue-specific, and gene conversion. Moreover, a large-scale analysis across plants and alga suggested that this superfamily could have been originated from AP2 family, expanding to form other families (ERF, and RAV). This process was accompanied by duplicating and/or alternative deleting AP2 domain, intragenic domain sequence conversion, and/or by acquiring other domains, resulting in copy number variations, alternatively contributing to functional innovation. We found that significant positive selection occurred at certain critical nodes during the evolution of land plants, possibly responding to changing environment. In conclusion, the present research revealed origination, functional innovation, and evolutionary trajectory of the AP2/ERF superfamily, contributing to understanding their roles in plant stress tolerance.
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Affiliation(s)
- Xiaoming Song
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Jinpeng Wang
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Xiao Ma
- Library, North China University of Science and TechnologyTangshan, China
| | - Yuxian Li
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Tianyu Lei
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Li Wang
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Weina Ge
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Di Guo
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Zhenyi Wang
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Chunjin Li
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
| | - Jianjun Zhao
- Key Laboratory of Vegetable Germplasm and Utilization of Hebei, Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Agricultural University of HebeiBaoding, China
- Jianjun Zhao
| | - Xiyin Wang
- Department of Life Sciences, North China University of Science and TechnologyTangshan, China
- *Correspondence: Xiyin Wang
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