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Song J, Tang L, Cui Y, Fan H, Zhen X, Wang J. Research Progress on Photoperiod Gene Regulation of Heading Date in Rice. Curr Issues Mol Biol 2024; 46:10299-10311. [PMID: 39329965 PMCID: PMC11430500 DOI: 10.3390/cimb46090613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 09/06/2024] [Accepted: 09/09/2024] [Indexed: 09/28/2024] Open
Abstract
Heading date is a critical physiological process in rice that is influenced by both genetic and environmental factors. The photoperiodic pathway is a primary regulatory mechanism for rice heading, with key florigen genes Hd3a (Heading date 3a) and RFT1 (RICE FLOWERING LOCUS T1) playing central roles. Upstream regulatory pathways, including Hd1 and Ehd1, also significantly impact this process. This review aims to provide a comprehensive examination of the localization, cloning, and functional roles of photoperiodic pathway-related genes in rice, and to explore the interactions among these genes as well as their pleiotropic effects on heading date. We systematically review recent advancements in the identification and functional analysis of genes involved in the photoperiodic pathway. We also discuss the molecular mechanisms underlying rice heading date variation and highlight the intricate interactions between key regulatory genes. Significant progress has been made in understanding the molecular mechanisms of heading date regulation through the cloning and functional analysis of photoperiod-regulating genes. However, the regulation of heading date remains complex, and many underlying mechanisms are not yet fully elucidated. This review consolidates current knowledge on the photoperiodic regulation of heading date in rice, emphasizing novel findings and gaps in the research. It highlights the need for further exploration of the interactions among flowering-related genes and their response to environmental signals. Despite advances, the full regulatory network of heading date remains unclear. Further research is needed to elucidate the intricate gene interactions, transcriptional and post-transcriptional regulatory mechanisms, and the role of epigenetic factors such as histone methylation in flowering time regulation. This review provides a detailed overview of the current understanding of photoperiodic pathway genes in rice, setting the stage for future research to address existing gaps and improve our knowledge of rice flowering regulation.
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Affiliation(s)
- Jian Song
- Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Liqun Tang
- Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yongtao Cui
- Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Honghuan Fan
- Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xueqiang Zhen
- Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jianjun Wang
- Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
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Wen X, Zhong Z, Xu P, Yang Q, Wang Y, Liu L, Wu Z, Wu Y, Zhang Y, Liu Q, Zhou Z, Peng Z, He Y, Cheng S, Cao L, Zhan X, Wu W. OsCOL5 suppresses heading through modulation of Ghd7 and Ehd2, enhancing rice yield. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:162. [PMID: 38884792 DOI: 10.1007/s00122-024-04674-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 05/12/2024] [Indexed: 06/18/2024]
Abstract
KEY MESSAGE OsCOL5, an ortholog of Arabidopsis COL5, is involved in photoperiodic flowering and enhances rice yield through modulation of Ghd7 and Ehd2 and interactions with OsELF3-1 and OsELF3-2. Heading date, also known as flowering time, plays a crucial role in determining the adaptability and yield potential of rice (Oryza sativa L.). CONSTANS (CO)-like is one of the most critical flowering-associated gene families, members of which are evolutionarily conserved. Here, we report the molecular functional characterization of OsCOL5, an ortholog of Arabidopsis COL5, which is involved in photoperiodic flowering and influences rice yield. Structural analysis revealed that OsCOL5 is a typical member of CO-like family, containing two B-box domains and one CCT domain. Rice plants overexpressing OsCOL5 showed delayed heading and increases in plant height, main spike number, total grain number per plant, and yield per plant under both long-day (LD) and short-day (SD) conditions. Gene expression analysis indicated that OsCOL5 was primarily expressed in the leaves and stems with a diurnal rhythm expression pattern. RT-qPCR analysis of heading date genes showed that OsCOL5 suppressed flowering by up-regulating Ghd7 and down-regulating Ehd2, consequently reducing the expression of Ehd1, Hd3a, RFT1, OsMADS14, and OsMADS15. Yeast two-hybrid experiments showed direct interactions of OsCOL5 with OsELF3-1 and OsELF3-2. Further verification showed specific interactions between the zinc finger/B-box domain of OsCOL5 and the middle region of OsELF3-1 and OsELF3-2. Yeast one-hybrid assays revealed that OsCOL5 may bind to the CCACA motif. The results suggest that OsCOL5 functions as a floral repressor, playing a vital role in rice's photoperiodic flowering regulation. This gene shows potential in breeding programs aimed at improving rice yield by influencing the timing of flowering, which directly impacts crop productivity.
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Affiliation(s)
- Xiaoxia Wen
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Zhengzheng Zhong
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Peng Xu
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Qinqin Yang
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Yinping Wang
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
- Shenzhen Research Institute of Henan University, Shenzhen, 518000, China
| | - Ling Liu
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Zhaozhong Wu
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Yewen Wu
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Yingxin Zhang
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Qunen Liu
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Zhengping Zhou
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Zequn Peng
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Yuqing He
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Shihua Cheng
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China
| | - Liyong Cao
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China.
| | - Xiaodeng Zhan
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China.
| | - Weixun Wu
- China National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 311400, China.
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3
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Wang F, Han T, Jeffrey Chen Z. Circadian and photoperiodic regulation of the vegetative to reproductive transition in plants. Commun Biol 2024; 7:579. [PMID: 38755402 PMCID: PMC11098820 DOI: 10.1038/s42003-024-06275-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 05/01/2024] [Indexed: 05/18/2024] Open
Abstract
As sessile organisms, plants must respond constantly to ever-changing environments to complete their life cycle; this includes the transition from vegetative growth to reproductive development. This process is mediated by photoperiodic response to sensing the length of night or day through circadian regulation of light-signaling molecules, such as phytochromes, to measure the length of night to initiate flowering. Flowering time is the most important trait to optimize crop performance in adaptive regions. In this review, we focus on interplays between circadian and light signaling pathways that allow plants to optimize timing for flowering and seed production in Arabidopsis, rice, soybean, and cotton. Many crops are polyploids and domesticated under natural selection and breeding. In response to adaptation and polyploidization, circadian and flowering pathway genes are epigenetically reprogrammed. Understanding the genetic and epigenetic bases for photoperiodic flowering will help improve crop yield and resilience in response to climate change.
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Affiliation(s)
- Fang Wang
- State Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Tongwen Han
- State Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Z Jeffrey Chen
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, 78712, USA.
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4
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Tsuji H, Sato M. The Function of Florigen in the Vegetative-to-Reproductive Phase Transition in and around the Shoot Apical Meristem. PLANT & CELL PHYSIOLOGY 2024; 65:322-337. [PMID: 38179836 PMCID: PMC11020210 DOI: 10.1093/pcp/pcae001] [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: 09/10/2023] [Revised: 11/30/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
Plants undergo a series of developmental phases throughout their life-cycle, each characterized by specific processes. Three critical features distinguish these phases: the arrangement of primordia (phyllotaxis), the timing of their differentiation (plastochron) and the characteristics of the lateral organs and axillary meristems. Identifying the unique molecular features of each phase, determining the molecular triggers that cause transitions and understanding the molecular mechanisms underlying these transitions are keys to gleaning a complete understanding of plant development. During the vegetative phase, the shoot apical meristem (SAM) facilitates continuous leaf and stem formation, with leaf development as the hallmark. The transition to the reproductive phase induces significant changes in these processes, driven mainly by the protein FT (FLOWERING LOCUS T) in Arabidopsis and proteins encoded by FT orthologs, which are specified as 'florigen'. These proteins are synthesized in leaves and transported to the SAM, and act as the primary flowering signal, although its impact varies among species. Within the SAM, florigen integrates with other signals, culminating in developmental changes. This review explores the central question of how florigen induces developmental phase transition in the SAM. Future research may combine phase transition studies, potentially revealing the florigen-induced developmental phase transition in the SAM.
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Affiliation(s)
- Hiroyuki Tsuji
- Bioscience and Biotechnology Center, Nagoya University, Furocho, Chikusa, Nagoya, Japan
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
| | - Moeko Sato
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
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Li C, Lin H, Debernardi JM, Zhang C, Dubcovsky J. GIGANTEA accelerates wheat heading time through gene interactions converging on FLOWERING LOCUS T1. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:519-533. [PMID: 38184778 DOI: 10.1111/tpj.16622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/20/2023] [Accepted: 12/22/2023] [Indexed: 01/08/2024]
Abstract
Precise regulation of flowering time is critical for cereal crops to synchronize reproductive development with optimum environmental conditions, thereby maximizing grain yield. The plant-specific gene GIGANTEA (GI) plays an important role in the control of flowering time, with additional functions on the circadian clock and plant stress responses. In this study, we show that GI loss-of-function mutants in a photoperiod-sensitive tetraploid wheat background exhibit significant delays in heading time under both long-day (LD) and short-day photoperiods, with stronger effects under LD. However, this interaction between GI and photoperiod is no longer observed in isogenic lines carrying either a photoperiod-insensitive allele in the PHOTOPERIOD1 (PPD1) gene or a loss-of-function allele in EARLY FLOWERING 3 (ELF3), a known repressor of PPD1. These results suggest that the normal circadian regulation of PPD1 is required for the differential effect of GI on heading time in different photoperiods. Using crosses between mutant or transgenic plants of GI and those of critical genes in the flowering regulation pathway, we show that GI accelerates wheat heading time by promoting FLOWERING LOCUS T1 (FT1) expression via interactions with ELF3, VERNALIZATION 2 (VRN2), CONSTANS (CO), and the age-dependent microRNA172-APETALA2 (AP2) pathway, at both transcriptional and protein levels. Our study reveals conserved GI mechanisms between wheat and Arabidopsis but also identifies specific interactions of GI with the distinctive photoperiod and vernalization pathways of the temperate grasses. These results provide valuable knowledge for modulating wheat heading time and engineering new varieties better adapted to a changing environment.
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Affiliation(s)
- Chengxia Li
- Department of Plant Sciences, University of California, Davis, California, 95616, USA
- Howard Hughes Medical Institute, Chevy Chase, Maryland, 20815, USA
| | - Huiqiong Lin
- Department of Plant Sciences, University of California, Davis, California, 95616, USA
- Howard Hughes Medical Institute, Chevy Chase, Maryland, 20815, USA
| | - Juan M Debernardi
- Department of Plant Sciences, University of California, Davis, California, 95616, USA
- Howard Hughes Medical Institute, Chevy Chase, Maryland, 20815, USA
| | - Chaozhong Zhang
- Department of Plant Sciences, University of California, Davis, California, 95616, USA
- Howard Hughes Medical Institute, Chevy Chase, Maryland, 20815, USA
| | - Jorge Dubcovsky
- Department of Plant Sciences, University of California, Davis, California, 95616, USA
- Howard Hughes Medical Institute, Chevy Chase, Maryland, 20815, USA
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Li L, Qiu M, Song S, Li Y, Wang T, Yang H, Dong H, Zhang L, Qiu Y, Xia S, Gong M, Wang J, Li L. Loss of function of OsL1 gene cause early flowering in rice under short-day conditions. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2024; 44:17. [PMID: 38371313 PMCID: PMC10873259 DOI: 10.1007/s11032-024-01444-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/27/2023] [Indexed: 02/20/2024]
Abstract
Heading date is one of the important agronomic traits that affects rice yield. In this study, we cloned a new rice B3 family gene, OsL1, which regulates rice heading date. Importantly, osl1-1 and osl1-2, two different types of mutants of OsL1 were created using the gene editing technology CRISPR/Cas9 system and exhibited 4 days earlier heading date than that of the wild type under short-day conditions. Subsequently, the plants overexpressing OsL1, OE-OsL1, showed a 2-day later heading date than the wild type in Changsha and a 5-day later heading date in Lingshui, but there was no significant difference in other yield traits. Moreover, the results of subcellular localization study indicated that OsL1 protein was located in the nucleus and the expression pattern analysis showed that OsL1 gene was expressed in rice roots, stems, leaves, and panicles, and the expression level was higher at the root and weak green panicle. In addition, the OsL1 gene was mainly expressed at night time under short-light conditions. The transcriptomic analysis indicated that OsL1 might be involved in the Hd1-Hd3a pathway function. Together, our results revealed that the cloning and functional analysis of OsL1 can provide new strategy for molecular design breeding of rice with suitable fertility period. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-024-01444-1.
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Affiliation(s)
- Lei Li
- Longping Branch, College of Biology, Hunan University, Changsha, 410125 China
| | - Mudan Qiu
- College of Agricultural, Hunan Agricultural University, Changsha, 410128 China
| | - Shufeng Song
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125 China
| | - Yixing Li
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125 China
| | - Tiankang Wang
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125 China
| | - Hanshu Yang
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125 China
| | - Hao Dong
- Longping Branch, College of Biology, Hunan University, Changsha, 410125 China
| | - Longhui Zhang
- College of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228 China
| | - Yingxin Qiu
- Longping Branch, College of Biology, Hunan University, Changsha, 410125 China
| | - Siqi Xia
- College of Agricultural, Hunan Agricultural University, Changsha, 410128 China
| | - Mengmeng Gong
- College of Agricultural, Hunan Agricultural University, Changsha, 410128 China
| | - Jianlong Wang
- College of Agricultural, Hunan Agricultural University, Changsha, 410128 China
| | - Li Li
- Longping Branch, College of Biology, Hunan University, Changsha, 410125 China
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, 410125 China
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Liu L, Xie Y, Yahaya BS, Wu F. GIGANTEA Unveiled: Exploring Its Diverse Roles and Mechanisms. Genes (Basel) 2024; 15:94. [PMID: 38254983 PMCID: PMC10815842 DOI: 10.3390/genes15010094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
GIGANTEA (GI) is a conserved nuclear protein crucial for orchestrating the clock-associated feedback loop in the circadian system by integrating light input, modulating gating mechanisms, and regulating circadian clock resetting. It serves as a core component which transmits blue light signals for circadian rhythm resetting and overseeing floral initiation. Beyond circadian functions, GI influences various aspects of plant development (chlorophyll accumulation, hypocotyl elongation, stomatal opening, and anthocyanin metabolism). GI has also been implicated to play a pivotal role in response to stresses such as freezing, thermomorphogenic stresses, salinity, drought, and osmotic stresses. Positioned at the hub of complex genetic networks, GI interacts with hormonal signaling pathways like abscisic acid (ABA), gibberellin (GA), salicylic acid (SA), and brassinosteroids (BRs) at multiple regulatory levels. This intricate interplay enables GI to balance stress responses, promoting growth and flowering, and optimize plant productivity. This review delves into the multifaceted roles of GI, supported by genetic and molecular evidence, and recent insights into the dynamic interplay between flowering and stress responses, which enhance plants' adaptability to environmental challenges.
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Affiliation(s)
- Ling Liu
- Faculty of Agriculture, Forestry and Food Engineering, Yibin University, Yibin 644000, China;
| | - Yuxin Xie
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.X.); (B.S.Y.)
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu 611130, China
| | - Baba Salifu Yahaya
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.X.); (B.S.Y.)
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu 611130, China
| | - Fengkai Wu
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.X.); (B.S.Y.)
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest Region, Ministry of Agriculture, Chengdu 611130, China
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8
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Zhang P, Chen Z, Wang F, Wu H, Hao L, Jiang X, Yu Z, Zou L, Jiang H. Response and inversion of skewness parameters to meteorological factors based on RGB model of leaf color digital image. PLoS One 2023; 18:e0288818. [PMID: 37967130 PMCID: PMC10650994 DOI: 10.1371/journal.pone.0288818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/04/2023] [Indexed: 11/17/2023] Open
Abstract
In the natural environment, complex and changeable meteorological factors can influence changes in the internal physiology and phenotype of crops. It is important to learn how to convert complex meteorological factor stimuli into plant perception phenotypes when analyzing the biological data obtained under the natural field condition. We restored the true gradation distribution of leaf color, which is also known as the skewed distribution of color scale, and obtained 20 multi-dimensional color gradation skewness-distribution (CGSD) parameters based on the leaf color skewness parameter system. Furthermore, we analyzed the correlation between the five corresponding meteorological factors and canopy CGSD parameters of peppers growing in a greenhouse and cabbages growing in an open air environment, built response model and inversion mode of leaf color to meteorological factors. Based on the analysis, we find a new method for correlating complex environmental problems with multi-dimensional parameters. This study provides a new idea for building a correlation model that uses leaf color as a bridge between meteorological factors and plants internal physiological state.
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Affiliation(s)
- Pei Zhang
- Jiangsu Meteorological Bureau, Nanjing, China
| | - Zhengmeng Chen
- Longyan Company of Fujian Provincial Tobacco Corporation, Longyan, China
| | - Fuzheng Wang
- QinGengRen Modern Agricultural Science and Technology Development (Huai’an) Co., Ltd., Huai’an, China
| | - Hongyan Wu
- Jiangsu Meteorological Bureau, Nanjing, China
| | - Ling Hao
- Lianyungang Meteorological Bureau, Lianyungang, China
| | - Xu Jiang
- Tufts University, Boston, MA, United States of America
| | - Zhiming Yu
- Key Laboratory of Crop Physiology and Ecology in Southern China, Ministry of Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Prodution, National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Lina Zou
- Longyan Company of Fujian Provincial Tobacco Corporation, Longyan, China
| | - Haidong Jiang
- Key Laboratory of Crop Physiology and Ecology in Southern China, Ministry of Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Prodution, National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Nanjing, People’s Republic of China
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9
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Li X, Zhang S, Lowey D, Hissam C, Clevenger J, Perera S, Jia Y, Caicedo AL. A derived weedy rice × ancestral cultivar cross identifies evolutionarily relevant weediness QTLs. Mol Ecol 2023; 32:5971-5985. [PMID: 37861465 DOI: 10.1111/mec.17172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 09/02/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023]
Abstract
Weedy rice (Oryza spp.) is a weedy relative of the cultivated rice that competes with the crop and causes significant production loss. The BHA (blackhull awned) US weedy rice group has evolved from aus cultivated rice and differs from its ancestors in several important weediness traits, including flowering time, plant height and seed shattering. Prior attempts to determine the genetic basis of weediness traits in plants using linkage mapping approaches have not often considered weed origins. However, the timing of divergence between crossed parents can affect the detection of quantitative trait loci (QTL) relevant to the evolution of weediness. Here, we used a QTL-seq approach that combines bulked segregant analysis and high-throughput whole genome resequencing to map the three important weediness traits in an F2 population derived from a cross between BHA weedy rice with an ancestral aus cultivar. We compared these QTLs with those previously detected in a cross of BHA with a more distantly related crop, indica. We identified multiple QTLs that overlapped with regions under selection during the evolution of weedy BHA rice and some candidate genes possibly underlying the evolution weediness traits in BHA. We showed that QTLs detected with ancestor-descendant crosses are more likely to be involved in the evolution of weediness traits than those detected from crosses of more diverged taxa.
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Affiliation(s)
- Xiang Li
- Plant Biology Graduate Program and Department of Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Shulin Zhang
- College of Biology and Food Engineering, Innovation and Practice Base for Postdoctors, Anyang Institute of Technology, Anyang, China
| | - Daniel Lowey
- Plant Biology Graduate Program and Department of Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Carter Hissam
- Plant Biology Graduate Program and Department of Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Josh Clevenger
- HudsonAlpha Institute of Biotechnology, Huntsville, Alabama, USA
| | - Sherin Perera
- Plant Biology Graduate Program and Department of Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Yulin Jia
- United States Department of Agriculture-Agricultural Research Service, Dale Bumpers National Rice Research Center, Stuttgart, Arkansas, USA
| | - Ana L Caicedo
- Plant Biology Graduate Program and Department of Biology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
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10
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Xu H, Zuo Y, Wei J, Wang L. The Circadian Clock Coordinates the Tradeoff between Adaptation to Abiotic Stresses and Yield in Crops. BIOLOGY 2023; 12:1364. [PMID: 37997963 PMCID: PMC10669628 DOI: 10.3390/biology12111364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 11/25/2023]
Abstract
Plants have evolved a circadian clock to adapt to ever-changing diel and seasonal environmental conditions. The circadian clock is generally considered an internal system that has evolved to adapt to cyclic environmental cues, especially diel light and temperature changes, which is essential for higher plants as they are sessile organisms. This system receives environmental signals as input pathways which are integrated by circadian core oscillators to synchronize numerous output pathways, such as photosynthesis, the abiotic stress response, metabolism, and development. Extreme temperatures, salinity, and drought stresses cause huge crop losses worldwide, imposing severe pressure on areas of agricultural land. In crop production, the circadian system plays a significant role in determining flowering time and responding to external abiotic stresses. Extensive studies over the last two decades have revealed that the circadian clock can help balance the tradeoff between crop yield-related agronomic traits and adaptation to stress. Herein, we focus on summarizing how the circadian clock coordinates abiotic stress responses and crop yield. We also propose that there might be an urgent need to better utilize circadian biology in the future design of crop breeding to achieve high yields under stress conditions.
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Affiliation(s)
- Hang Xu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (H.X.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Zuo
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (H.X.); (Y.Z.)
| | - Jian Wei
- Center of Soybean, Jilin Agricultural University, Changchun 130117, China;
| | - Lei Wang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; (H.X.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Academician Workstation of Agricultural High-Tech Industrial Area of the Yellow River Delta, National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying 257300, China
- China National Botanical Garden, Beijing 100093, China
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11
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Wang J, Huang J, Bao J, Li X, Zhu L, Jin J. Rice domestication-associated transcription factor PROSTRATE GROWTH 1 controls plant and panicle architecture by regulating the expression of LAZY 1 and OsGIGANTEA, respectively. MOLECULAR PLANT 2023; 16:1413-1426. [PMID: 37621089 DOI: 10.1016/j.molp.2023.08.011] [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: 07/12/2023] [Revised: 08/12/2023] [Accepted: 08/22/2023] [Indexed: 08/26/2023]
Abstract
Plant architecture and panicle architecture are two critical agronomic traits that greatly affect the yield of rice (Oryza sativa). PROSTRATE GROWTH 1 (PROG1) encodes a key C2H2-type zinc-finger transcription factor and has pleiotropic effects on the regulation of both plant and panicle architecture, thereby influencing the grain yield. However, the molecular mechanisms through which PROG1 controls plant and panicle architecture remain unclear. In this study, we showed that PROG1 directly binds the LAZY 1 (LA1) promoter and acts as a repressor to inhibit LA1 expression. Conversely, LA1 acts as a repressor of PROG1 by directly binding to the PROG1 promoter. These two genes play antagonistic roles in shaping plant architecture by regulating both tiller angle and tiller number. Interestingly, our data showed that PROG1 controls panicle architecture through direct binding to the intragenic regulatory regions of OsGIGANTEA (OsGI) and subsequent activation of its expression. Collectively, we have identified two crucial targets of PROG1, LA1 and OsGI, shedding light on the molecular mechanisms underlying plant and panicle architecture control by PROG1. Our study provides valuable insights into the regulation of key domestication-related traits in rice and identifies potential targets for future high-yield rice breeding.
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Affiliation(s)
- Jun Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jing Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Jinlin Bao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Xizhi Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Liang Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Jian Jin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China.
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12
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Zhao Z, Chen T, Yue J, Pu N, Liu J, Luo L, Huang M, Guo T, Xiao W. Small Auxin Up RNA 56 (SAUR56) regulates heading date in rice. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2023; 43:62. [PMID: 37521314 PMCID: PMC10374499 DOI: 10.1007/s11032-023-01409-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/16/2023] [Indexed: 08/01/2023]
Abstract
Heading date is a critical agronomic trait that determines crop yield. Although numerous genes associated with heading date have been identified in rice, the mechanisms involving Small Auxin Up RNA (SAUR) family have not been elucidated. In this study, the biological function of several SAUR genes was initially investigated using the CRISPR-Cas9 technology in the Japonica cultivar Zhonghua11 (ZH11) background. Further analysis revealed that the loss-of-function of OsSAUR56 affected heading date in both NLD (natural long-day) and ASD (artificial short-day). OsSAUR56 exhibited predominant expression in the anther, with its protein localized in both the cytoplasm and nucleus. OsSAUR56 regulated flowering time and heading date by modulating the expression of the clock gene OsGI, as well as two repressors Ghd7 and DTH8. Furthermore, haplotype-phenotype association analysis revealed a strong correlation between OsSAUR56 and heading date, suggesting its role in selection during the domestication of rice. In summary, these findings highlights the importance of OsSAUR56 in the regulation of heading date for further potential facilitating genetic engineering for flowering time during rice breeding. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-023-01409-w.
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Affiliation(s)
- Zhe Zhao
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Tengkui Chen
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Jicheng Yue
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Na Pu
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Jinzhao Liu
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Lixin Luo
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Ming Huang
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642 China
| | - Tao Guo
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
- Heyuan Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Heyuan, 517000 Guangdong China
| | - Wuming Xiao
- National Plant Space Breeding Engineering Technology Research Center, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
- Heyuan Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Heyuan, 517000 Guangdong China
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13
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Li Z, Gao F, Liu Y, Abou-Elwafa SF, Qi J, Pan H, Hu X, Ren Z, Zeng H, Liu Z, Zhang D, Xi Z, Liu T, Chen Y, Su H, Xiong S, Ku L. ZmGI2 regulates flowering time through multiple flower development pathways in maize. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 332:111701. [PMID: 37030327 DOI: 10.1016/j.plantsci.2023.111701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 04/02/2023] [Accepted: 04/05/2023] [Indexed: 05/27/2023]
Abstract
GIGANTEA (GI) encodes a component of the circadian clock core oscillator and has been identified as a regulatory pathway of the circadian rhythm and photoperiodic flowering in model plants. However, the regulatory pathway of GI affecting flowering time is unknown in maize. Here, we identified that the zmgi2 mutant flowered earlier than the wild type under long day (LD) conditions, whereas the difference in flowering time was not apparent under short day (SD) conditions. The 24 h optimal expression of the gene in the stem apex meristems (SAM) appeared at 9 h after dawn under LD conditions and at 11 h after dawn under SD conditions. DAP-Seq and RNA-Seq further revealed that ZmGI2 delays flowering by directly binding to the upstream regions of ZmVOZs, ZmZCN8 and ZmFPF1 to repress the expression of these genes and by directly binding to the upstream regions of ZmARR11, ZmDOF and ZmUBC11 to promote the expression of these genes. The genetic and biochemical evidence suggests a model for the potential role of ZmGI2 in regulating the flowering time-dependent photoperiodic pathway. This study provides novel insights into the function of ZmGIs in maize and further demonstrates their potential importance for floral transition. These results contribute to a comprehensive understanding of the molecular mechanisms and regulatory networks of GI transcription factors in regulating flowering time in maize.
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Affiliation(s)
- Zhimin Li
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Fengran Gao
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Yajing Liu
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | | | - Junlong Qi
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Haibo Pan
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Xiaomeng Hu
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Zhenzhen Ren
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Haixia Zeng
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Zhixue Liu
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Dongling Zhang
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Zhangying Xi
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Tianxue Liu
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Yanhui Chen
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China
| | - Huihui Su
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China.
| | - Shuping Xiong
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China.
| | - Lixia Ku
- College of Agronomy, National Key Laboratory of Wheat and Maize Crop Science and Key Laboratory of Regulating and Controlling Crop Growth and Development Ministry of Education, Henan Agricultural University, No. 15 Longzihu University Park, Zhengdong New Area, Zhengzhou, Henan 450046, China.
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14
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Zheng R, Meng X, Hu Q, Yang B, Cui G, Li Y, Zhang S, Zhang Y, Ma X, Song X, Liang S, Li Y, Li J, Yu H, Luan W. OsFTL12, a member of FT-like family, modulates the heading date and plant architecture by florigen repression complex in rice. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:1343-1360. [PMID: 36719169 PMCID: PMC10281609 DOI: 10.1111/pbi.14020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
FLOWERING LOCUS T (FT), a florigen in Arabidopsis, plays critical roles in floral transition. Among 13 FT-like members in rice, OsFTL2 (Hd3a) and OsFTL3 (RFT1), two rice homologues of FT, have been well characterized to act as florigens to induce flowering under short-day (SD) and long-day (LD) conditions, respectively, but the functions of other rice FT-like members remain largely unclear. Here, we show that OsFTL12 plays an antagonistic function against Hd3a and RFT1 to modulate the heading date and plant architecture in rice. Unlike Hd3a and RFT1, OsFTL12 is not regulated by daylength and highly expressed in both SD and LD conditions, and delays the heading date under either SD or LD conditions. We further demonstrate that OsFTL12 interacts with GF14b and OsFD1, two key components of the florigen activation complex (FAC), to form the florigen repression complex (FRC) by competing with Hd3a for binding GF14b. Notably, OsFTL12-FRC can bind to the promoters of the floral identity genes OsMADS14 and OsMADS15 and suppress their expression. The osmads14 osmads15 double mutants could not develop panicles and showed erect leaves. Taken together, our results reveal that different FT-like members can fine-tune heading date and plant architecture by regulating the balance of FAC and FRC in rice.
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Affiliation(s)
- Rui Zheng
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
| | - Xiangbing Meng
- State Key Laboratory of Plant Genomics, and National Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of SciencesBeijingChina
| | - Qingliang Hu
- State Key Laboratory of Plant Genomics, and National Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of SciencesBeijingChina
| | - Bo Yang
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
| | - Guicai Cui
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant BiologyInstitute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of SciencesBeijingChina
| | - Yingying Li
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
| | - Siju Zhang
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
| | - Yu Zhang
- Institute for Advance StudiesWuhan UniversityWuhanChina
| | - Xuan Ma
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
| | - Xiaoguang Song
- State Key Laboratory of Plant Genomics, and National Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of SciencesBeijingChina
| | - Shanshan Liang
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
| | - Yunhai Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant BiologyInstitute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Jiayang Li
- State Key Laboratory of Plant Genomics, and National Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
- Hainan Yazhou Bay Seed LaboratorySanyaChina
| | - Hong Yu
- State Key Laboratory of Plant Genomics, and National Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Weijiang Luan
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
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15
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Xu H, Wang X, Wei J, Zuo Y, Wang L. The Regulatory Networks of the Circadian Clock Involved in Plant Adaptation and Crop Yield. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091897. [PMID: 37176955 PMCID: PMC10181312 DOI: 10.3390/plants12091897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023]
Abstract
Global climatic change increasingly threatens plant adaptation and crop yields. By synchronizing internal biological processes, including photosynthesis, metabolism, and responses to biotic and abiotic stress, with external environmental cures, such as light and temperature, the circadian clock benefits plant adaptation and crop yield. In this review, we focus on the multiple levels of interaction between the plant circadian clock and environmental factors, and we summarize recent progresses on how the circadian clock affects yield. In addition, we propose potential strategies for better utilizing the current knowledge of circadian biology in crop production in the future.
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Affiliation(s)
- Hang Xu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiling Wang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Wei
- College of Life Sciences, Changchun Normal University, Changchun 130032, China
| | - Yi Zuo
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Lei Wang
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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16
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Shim Y, Seong G, Choi Y, Lim C, Baek SA, Park YJ, Kim JK, An G, Kang K, Paek NC. Suppression of cuticular wax biosynthesis mediated by rice LOV KELCH REPEAT PROTEIN 2 supports a negative role in drought stress tolerance. PLANT, CELL & ENVIRONMENT 2023; 46:1504-1520. [PMID: 36683564 DOI: 10.1111/pce.14549] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 06/17/2023]
Abstract
Drought tolerance is important for grain crops, including rice (Oryza sativa); for example, rice cultivated under intermittent irrigation produces less methane gas compared to rice grown in anaerobic paddy field conditions, but these plants require greater drought tolerance. Moreover, the roles of rice circadian-clock genes in drought tolerance remain largely unknown. Here, we show that the mutation of LOV KELCH REPEAT PROTEIN 2 (OsLKP2) enhanced drought tolerance by increasing cuticular wax biosynthesis. Among ZEITLUPE family genes, OsLKP2 expression specifically increased under dehydration stress. OsLKP2 knockdown (oslkp2-1) and knockout (oslkp2-2) mutants exhibited enhanced drought tolerance. Cuticular waxes inhibit non-stomatal water loss. Under drought conditions, total wax loads on the leaf surface increased by approximately 10% in oslkp2-1 and oslkp2-2 compared to the wild type, and the transcript levels of cuticular wax biosynthesis genes were upregulated in the oslkp2 mutants. Yeast two-hybrid, bimolecular fluorescence complementation, and coimmunoprecipitation assays revealed that OsLKP2 interacts with GIGANTEA (OsGI) in the nucleus. The osgi mutants also showed enhanced tolerance to drought stress, with a high density of wax crystals on their leaf surface. These results demonstrate that the OsLKP2-OsGI interaction negatively regulates wax accumulation on leaf surfaces, thereby decreasing rice resilience to drought stress.
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Affiliation(s)
- Yejin Shim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Gayeong Seong
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Yumin Choi
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Chaemyeong Lim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Seung-A Baek
- Division of Life Sciences, Incheon National University, Incheon, Republic of Korea
| | - Young Jin Park
- Division of Life Sciences, Incheon National University, Incheon, Republic of Korea
| | - Jae Kwang Kim
- Division of Life Sciences, Incheon National University, Incheon, Republic of Korea
| | - Gynheung An
- Crop Biotech Institute and Graduate School of Biotechnology, Kyung Hee University, Yongin, Republic of Korea
| | - Kiyoon Kang
- Division of Life Sciences, Incheon National University, Incheon, Republic of Korea
| | - Nam-Chon Paek
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
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17
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Muhammad S, Xu X, Zhou W, Wu L. Alternative splicing: An efficient regulatory approach towards plant developmental plasticity. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 14:e1758. [PMID: 35983878 DOI: 10.1002/wrna.1758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/28/2022] [Accepted: 07/19/2022] [Indexed: 05/13/2023]
Abstract
Alternative splicing (AS) is a gene regulatory mechanism that plants adapt to modulate gene expression (GE) in multiple ways. AS generates alternative isoforms of the same gene following various development and environmental stimuli, increasing transcriptome plasticity and proteome complexity. AS controls the expression levels of certain genes and regulates GE networks that shape plant adaptations through nonsense-mediated decay (NMD). This review intends to discuss AS modulation, from interaction with noncoding RNAs to the established roles of splicing factors (SFs) in response to endogenous and exogenous cues. We aim to gather such studies that highlight the magnitude and impact of AS, which are not always clear from individual articles, when AS is increasing in individual genes and at a global level. This work also anticipates making plant researchers know that AS is likely to occur in their investigations and that dynamic changes in AS and their effects must be frequently considered. We also review our understanding of AS-mediated posttranscriptional modulation of plant stress tolerance and discuss its potential application in crop improvement in the future. This article is categorized under: RNA Processing > Splicing Regulation/Alternative Splicing RNA Processing > Splicing Mechanisms RNA-Based Catalysis > RNA Catalysis in Splicing and Translation.
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Affiliation(s)
- Sajid Muhammad
- Hainan Yazhou Bay Seed Laboratory, Hainan Institute of Zhejiang University, Sanya, Hainan, China
- State Key Laboratory of Rice Biology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiaoli Xu
- Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Weijun Zhou
- State Key Laboratory of Rice Biology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Liang Wu
- Hainan Yazhou Bay Seed Laboratory, Hainan Institute of Zhejiang University, Sanya, Hainan, China
- State Key Laboratory of Rice Biology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
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18
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Singh S, Vergish S, Jain N, Sharma AK, Khurana P, Khurana JP. OsCRY2 and OsFBO10 co-regulate photomorphogenesis and photoperiodic flowering in indica rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 330:111631. [PMID: 36773757 DOI: 10.1016/j.plantsci.2023.111631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/02/2023] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
Cryptochromes (CRYs) are a class of photoreceptors that perceive blue/ultraviolet-A light of the visible spectrum to mediate a vast number of physiological responses in bacteria, fungi, animals and plants. In the present study, we have characterized OsCRY2 in a photoperiod sensitive indica variety, Basmati 370, by generating and analyzing overexpression (OE) and knock-down (KD) transgenic lines. The OsCRY2OE lines displayed dwarfism as shown in their reduced plant height and leaf length, attributed largely by an overall reduction in their cell size. The OsCRY2OE lines flowered significantly earlier and showed shorter and broader seeds with an overall reduced seed weight. The OsCRY2KD lines showed contrasting phenotypes, such as increased plant height and delayed flowering, however, decreased seed size and weight were also observed in the KD lines, along with reduced spikelet fertility and high seed shattering rate in mature panicles. Novel interactions were confirmed between OsCRY2 and members of ZEITLUPE family of blue/ultraviolet-A light photoreceptors, encoded by OsFBO8, OsFBO9 and OsFBO10 which are orthologous to ZEITLUPE (ZTL), LOV KELCH PROTEIN2 (LKP2) and FLAVIN BINDING, KELCH REPEAT F-BOX1 (FKF1), respectively, of Arabidopsis thaliana. Since FKF1 is known to play a role in regulating photoperiodic flowering, OsFBO10 was chosen for further studies. OsCRY2 and OsFBO10 interacted in the nucleus and cytoplasm of the cell and cross-regulated the expression of each other. They were also found to regulate the expression of several genes involved in photoperiodic flowering in rice. Both OsCRY2 and OsFBO10 played a positive role in photomorphogenic responses in different light conditions. The physical interaction of OsCRY2 with OsFBO10, their involvement in common physiological and developmental pathways and their cross-regulation of each other suggest that the two photoreceptors may regulate common developmental pathways in plants, either jointly or redundantly.
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Affiliation(s)
- Shipra Singh
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi, South Campus, New Delhi 110021, India
| | - Satyam Vergish
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi, South Campus, New Delhi 110021, India
| | - Nitin Jain
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi, South Campus, New Delhi 110021, India
| | - Arun Kumar Sharma
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi, South Campus, New Delhi 110021, India
| | - Paramjit Khurana
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi, South Campus, New Delhi 110021, India.
| | - Jitendra P Khurana
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi, South Campus, New Delhi 110021, India
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19
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Ahmadi N, Barry MB, Frouin J, de Navascués M, Toure MA. Genome Scan of Rice Landrace Populations Collected Across Time Revealed Climate Changes' Selective Footprints in the Genes Network Regulating Flowering Time. RICE (NEW YORK, N.Y.) 2023; 16:15. [PMID: 36947285 PMCID: PMC10033818 DOI: 10.1186/s12284-023-00633-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Analyses of the genetic bases of plant adaptation to climate changes, using genome-scan approaches, are often conducted on natural populations, under hypothesis of out-crossing reproductive regime. We report here on a study based on diachronic sampling (1980 and 2011) of the autogamous crop species, Oryza sativa and Oryza glaberrima, in the tropical forest and the Sudanian savannah of West Africa. First, using historical meteorological data we confirmed changes in temperatures (+ 1 °C on average) and rainfall regime (less predictable and reduced amount) in the target areas. Second, phenotyping the populations for phenology, we observed significantly earlier heading time in the 2010 samples. Third, implementing two genome-scan methods (one of which specially developed for selfing species) on genotyping by sequencing genotypic data of the two populations, we detected 31 independent selection footprints. Gene ontology analysis detected significant enrichment of these selection footprints in genes involved in reproductive processes. Some of them bore known heading time QTLs and genes, including OsGI, Hd1 and OsphyB. This rapid adaptive evolution, originated from subtle changes in the standing variation in genetic network regulating heading time, did not translate into predominance of multilocus genotypes, as it is often the case in selfing plants, and into notable selective sweeps. The high adaptive potential observed results from the multiline genetic structure of the rice landraces, and the rather large and imbricated genetic diversity of the rice meta-population at the farm, the village and the region levels, that hosted the adaptive variants in multiple genetic backgrounds before the advent of the environmental selective pressure. Our results illustrate the evolution of in situ diversity through processes of human and natural selection, and provide a model for rice breeding and cultivars deployment strategies aiming resilience to climate changes. It also calls for further development of population genetic models for adaptation of plant populations to environmental changes. To our best knowledge, this is the first study dealing with climate-changes' selective footprint in crops.
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Affiliation(s)
- Nourollah Ahmadi
- UMR AGAP, CIRAD, TA-A 108/03, Avenue Agropolis, 34398, Montpellier Cedex 5, France.
- AGAP, CIRAD, INRA, Montpellier SupAgro, Univ Montpellier, Montpellier, France.
| | | | - Julien Frouin
- UMR AGAP, CIRAD, TA-A 108/03, Avenue Agropolis, 34398, Montpellier Cedex 5, France
- AGAP, CIRAD, INRA, Montpellier SupAgro, Univ Montpellier, Montpellier, France
| | - Miguel de Navascués
- CBGP, CIRAD, INRAE, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France
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20
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Qiu L, Zhou P, Wang H, Zhang C, Du C, Tian S, Wu Q, Wei L, Wang X, Zhou Y, Huang R, Huang X, Ouyang X. Photoperiod Genes Contribute to Daylength-Sensing and Breeding in Rice. PLANTS (BASEL, SWITZERLAND) 2023; 12:899. [PMID: 36840246 PMCID: PMC9959395 DOI: 10.3390/plants12040899] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/04/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Rice (Oryza sativa L.), one of the most important food crops worldwide, is a facultative short-day (SD) plant in which flowering is modulated by seasonal and temperature cues. The photoperiodic molecular network is the core network for regulating flowering in rice, and is composed of photoreceptors, a circadian clock, a photoperiodic flowering core module, and florigen genes. The Hd1-DTH8-Ghd7-PRR37 module, a photoperiodic flowering core module, improves the latitude adaptation through mediating the multiple daylength-sensing processes in rice. However, how the other photoperiod-related genes regulate daylength-sensing and latitude adaptation remains largely unknown. Here, we determined that mutations in the photoreceptor and circadian clock genes can generate different daylength-sensing processes. Furthermore, we measured the yield-related traits in various mutants, including the main panicle length, grains per panicle, seed-setting rate, hundred-grain weight, and yield per panicle. Our results showed that the prr37, elf3-1 and ehd1 mutants can change the daylength-sensing processes and exhibit longer main panicle lengths and more grains per panicle. Hence, the PRR37, ELF3-1 and Ehd1 locus has excellent potential for latitude adaptation and production improvement in rice breeding. In summary, this study systematically explored how vital elements of the photoperiod network regulate daylength sensing and yield traits, providing critical information for their breeding applications.
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Affiliation(s)
- Leilei Qiu
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350002, China
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Peng Zhou
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350002, China
| | - Hao Wang
- Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Cheng Zhang
- Liaoning Rice Research Institute, Shenyang 110101, China
| | - Chengxing Du
- Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
| | - Shujun Tian
- Liaoning Rice Research Institute, Shenyang 110101, China
| | - Qinqin Wu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Litian Wei
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Xiaoying Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Yiming Zhou
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Rongyu Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Xi Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Xinhao Ouyang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
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21
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Sun C, He C, Zhong C, Liu S, Liu H, Luo X, Li J, Zhang Y, Guo Y, Yang B, Wang P, Deng X. Bifunctional regulators of photoperiodic flowering in short day plant rice. FRONTIERS IN PLANT SCIENCE 2022; 13:1044790. [PMID: 36340409 PMCID: PMC9630834 DOI: 10.3389/fpls.2022.1044790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Photoperiod is acknowledged as a crucial environmental factor for plant flowering. According to different responses to photoperiod, plants were divided into short-day plants (SDPs), long-day plants (LDPs), and day-neutral plants (DNPs). The day length measurement system of SDPs is different from LDPs. Many SDPs, such as rice, have a critical threshold for day length (CDL) and can even detect changes of 15 minutes for flowering decisions. Over the last 20 years, molecular mechanisms of flowering time in SDP rice and LDP Arabidopsis have gradually clarified, which offers a chance to elucidate the differences in day length measurement between the two types of plants. In Arabidopsis, CO is a pivotal hub in integrating numerous internal and external signals for inducing photoperiodic flowering. By contrast, Hd1 in rice, the homolog of CO, promotes and prevents flowering under SD and LD, respectively. Subsequently, numerous dual function regulators, such as phytochromes, Ghd7, DHT8, OsPRR37, OsGI, OsLHY, and OsELF3, were gradually identified. This review assesses the relationship among these regulators and a proposed regulatory framework for the reversible mechanism, which will deepen our understanding of the CDL regulation mechanism and the negative response to photoperiod between SDPs and LDPs.
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Affiliation(s)
- Changhui Sun
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Changcai He
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Chao Zhong
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Shihang Liu
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Hongying Liu
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xu Luo
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Jun Li
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yuxiu Zhang
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yuting Guo
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Bin Yang
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Pingrong Wang
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xiaojian Deng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
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22
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Patnaik A, Alavilli H, Rath J, Panigrahi KCS, Panigrahy M. Variations in Circadian Clock Organization & Function: A Journey from Ancient to Recent. PLANTA 2022; 256:91. [PMID: 36173529 DOI: 10.1007/s00425-022-04002-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Circadian clock components exhibit structural variations in different plant systems, and functional variations during various abiotic stresses. These variations bear relevance for plant fitness and could be important evolutionarily. All organisms on earth have the innate ability to measure time as diurnal rhythms that occur due to the earth's rotations in a 24-h cycle. Circadian oscillations arising from the circadian clock abide by its fundamental properties of periodicity, entrainment, temperature compensation, and oscillator mechanism, which is central to its function. Despite the fact that a myriad of research in Arabidopsis thaliana illuminated many detailed aspects of the circadian clock, many more variations in clock components' organizations and functions remain to get deciphered. These variations are crucial for sustainability and adaptation in different plant systems in the varied environmental conditions in which they grow. Together with these variations, circadian clock functions differ drastically even during various abiotic and biotic stress conditions. The present review discusses variations in the organization of clock components and their role in different plant systems and abiotic stresses. We briefly introduce the clock components, entrainment, and rhythmicity, followed by the variants of the circadian clock in different plant types, starting from lower non-flowering plants, marine plants, dicots to the monocot crop plants. Furthermore, we discuss the interaction of the circadian clock with components of various abiotic stress pathways, such as temperature, light, water stress, salinity, and nutrient deficiency with implications for the reprogramming during these stresses. We also update on recent advances in clock regulations due to post-transcriptional, post-translation, non-coding, and micro-RNAs. Finally, we end this review by summarizing the points of applicability, a remark on the future perspectives, and the experiments that could clear major enigmas in this area of research.
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Affiliation(s)
- Alena Patnaik
- School of Biological Sciences, National Institute of Science Education and Research, Jatni, Odisha, 752050, India
| | - Hemasundar Alavilli
- Department of Bioresources Engineering, Sejong University, Seoul, 05006, South Korea
| | - Jnanendra Rath
- Institute of Science, Visva-Bharati Central University, Santiniketan, West Bengal, 731235, India
| | - Kishore C S Panigrahi
- School of Biological Sciences, National Institute of Science Education and Research, Jatni, Odisha, 752050, India
| | - Madhusmita Panigrahy
- School of Biological Sciences, National Institute of Science Education and Research, Jatni, Odisha, 752050, India.
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23
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Siemiatkowska B, Chiara M, Badiger BG, Riboni M, D'Avila F, Braga D, Salem MAA, Martignago D, Colanero S, Galbiati M, Giavalisco P, Tonelli C, Juenger TE, Conti L. GIGANTEA Is a Negative Regulator of Abscisic Acid Transcriptional Responses and Sensitivity in Arabidopsis. PLANT & CELL PHYSIOLOGY 2022; 63:1285-1297. [PMID: 35859344 DOI: 10.1093/pcp/pcac102] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Transcriptional reprogramming plays a key role in drought stress responses, preceding the onset of morphological and physiological acclimation. The best-characterized signal regulating gene expression in response to drought is the phytohormone abscisic acid (ABA). ABA-regulated gene expression, biosynthesis and signaling are highly organized in a diurnal cycle, so that ABA-regulated physiological traits occur at the appropriate time of day. The mechanisms that underpin such diel oscillations in ABA signals are poorly characterized. Here we uncover GIGANTEA (GI) as a key gatekeeper of ABA-regulated transcriptional and physiological responses. Time-resolved gene expression profiling by RNA sequencing under different irrigation scenarios indicates that gi mutants produce an exaggerated ABA response, despite accumulating wild-type levels of ABA. Comparisons with ABA-deficient mutants confirm the role of GI in controlling ABA-regulated genes, and the analysis of leaf temperature, a read-out for transpiration, supports a role for GI in the control of ABA-regulated physiological processes. Promoter regions of GI/ABA-regulated transcripts are directly targeted by different classes of transcription factors (TFs), especially PHYTOCHROME-INTERACTING FACTOR and -BINDING FACTOR, together with GI itself. We propose a model whereby diel changes in GI control oscillations in ABA responses. Peak GI accumulation at midday contributes to establishing a phase of reduced ABA sensitivity and related physiological responses, by gating DNA binding or function of different classes of TFs that cooperate or compete with GI at target regions.
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Affiliation(s)
- Beata Siemiatkowska
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Matteo Chiara
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Bhaskara G Badiger
- Department of Integrative Biology, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
| | - Matteo Riboni
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Francesca D'Avila
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Via Antonio di Rudinì, 8, Milano 20142, Italy
| | - Daniele Braga
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Via Antonio di Rudinì, 8, Milano 20142, Italy
| | - Mohamed Abd Allah Salem
- Department of Pharmacognosy, Faculty of Pharmacy, Menoufia University, Gamal Abd El Nasr st., Shibin Elkom, Menoufia 32511, Egypt
| | - Damiano Martignago
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Sara Colanero
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Massimo Galbiati
- Istituto di Biologia e Biotecnologia Agraria-IBBA, CNR, Via Edoardo Bassini, 15, Milano 20133, Italy
| | - Patrick Giavalisco
- Max Planck Institute for Biology of Ageing, Joseph Stelzmann Str. 9b, Cologne 50931, Germany
| | - Chiara Tonelli
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Thomas E Juenger
- Department of Integrative Biology, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
| | - Lucio Conti
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
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24
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Lee SJ, Kang K, Lim JH, Paek NC. Natural alleles of CIRCADIAN CLOCK ASSOCIATED1 contribute to rice cultivation by fine-tuning flowering time. PLANT PHYSIOLOGY 2022; 190:640-656. [PMID: 35723564 PMCID: PMC9434239 DOI: 10.1093/plphys/kiac296] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 05/26/2022] [Indexed: 05/11/2023]
Abstract
The timing of flowering is a crucial factor for successful grain production at a wide range of latitudes. Domestication of rice (Oryza sativa) included selection for natural alleles of flowering-time genes that allow rice plants to adapt to broad geographic areas. Here, we describe the role of natural alleles of CIRCADIAN CLOCK ASSOCIATED1 (OsCCA1) in cultivated rice based on analysis of single-nucleotide polymorphisms deposited in the International Rice Genebank Collection Information System database. Rice varieties harboring japonica-type OsCCA1 alleles (OsCCA1a haplotype) flowered earlier than those harboring indica-type OsCCA1 alleles (OsCCA1d haplotype). In the japonica cultivar "Dongjin", a T-DNA insertion in OsCCA1a resulted in late flowering under long-day and short-day conditions, indicating that OsCCA1 is a floral inducer. Reverse transcription quantitative PCR analysis showed that the loss of OsCCA1a function induces the expression of the floral repressors PSEUDO-RESPONSE REGULATOR 37 (OsPRR37) and Days to Heading 8 (DTH8), followed by repression of the Early heading date 1 (Ehd1)-Heading date 3a (Hd3a)-RICE FLOWERING LOCUS T 1 (RFT1) pathway. Binding affinity assays indicated that OsCCA1 binds to the promoter regions of OsPRR37 and DTH8. Naturally occurring OsCCA1 alleles are evolutionarily conserved in cultivated rice (O. sativa). Oryza rufipogon-I (Or-I) and Or-III type accessions, representing the ancestors of O. sativa indica and japonica, harbored indica- and japonica-type OsCCA1 alleles, respectively. Taken together, our results demonstrate that OsCCA1 is a likely domestication locus that has contributed to the geographic adaptation and expansion of cultivated rice.
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Affiliation(s)
- Sang-Ji Lee
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea
| | - Kiyoon Kang
- Division of Life Sciences, Incheon National University, Incheon 22012, South Korea
| | - Jung-Hyun Lim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea
| | - Nam-Chon Paek
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea
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25
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Suzuki Y, Konno Y, Takegahara-Tamakawa Y, Miyake C, Makino A. Effects of suppression of chloroplast phosphoglycerate kinase on photosynthesis in rice. PHOTOSYNTHESIS RESEARCH 2022; 153:83-91. [PMID: 35635654 DOI: 10.1007/s11120-022-00923-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/03/2022] [Indexed: 06/15/2023]
Abstract
As chloroplast phosphoglycerate kinase (cpPGK) is one of the enzymes which has the highest capacity among the Calvin-Benson cycle enzymes, it has not been regarded as a determinant for photosynthetic capacity. However, it was reported that the rate of CO2 assimilation decreased under high irradiance and normal [CO2] levels in the Arabidopsis cpPGK-knockdown mutant, implying that cpPGK has a control over photosynthetic capacity at a normal [CO2] level. In the present study, the contribution of cpPGK to photosynthetic capacity was evaluated in transgenic rice plants with decreased amounts of cpPGK protein under high irradiance and various [CO2] levels. The gene encoding cpPGK was suppressed using RNA interference techniques. Two lines of transgenic plants, Pi3 and Pi5, in which the amount of cpPGK protein decreased to 21% and 76% of that in wild-type plants, respectively, were obtained. However, there was no substantial difference in the rates of CO2 assimilation between wild-type and transgenic plants. The rates of CO2 assimilation decreased only slightly at elevated [CO2] levels in the transgenic line Pi3 and did not differ between wild-type plants and the transgenic line Pi5, irrespective of [CO2] level. These results clearly indicate that cpPGK does not have a strong control over photosynthetic capacity at various [CO2] levels in rice.
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Affiliation(s)
- Yuji Suzuki
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, 020-8550, Japan.
| | - Yume Konno
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, 020-8550, Japan
| | | | - Chikahiro Miyake
- Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan
| | - Amane Makino
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aoba, Aoba-ku, Sendai, 980-8572, Japan
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26
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The clock component OsLUX regulates rice heading through recruiting OsELF3-1 and OsELF4s to repress Hd1 and Ghd7. J Adv Res 2022:S2090-1232(22)00169-2. [DOI: 10.1016/j.jare.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/16/2022] [Accepted: 08/01/2022] [Indexed: 11/19/2022] Open
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27
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Gong J, Tang Y, Liu Y, Sun R, Li Y, Ma J, Zhang S, Zhang F, Chen Z, Liao X, Sun H, Lu Z, Zhao C, Gao S. The Central Circadian Clock Protein TaCCA1 Regulates Seedling Growth and Spike Development in Wheat ( Triticum aestivum L.). FRONTIERS IN PLANT SCIENCE 2022; 13:946213. [PMID: 35923880 PMCID: PMC9340162 DOI: 10.3389/fpls.2022.946213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/20/2022] [Indexed: 05/14/2023]
Abstract
The biological functions of the circadian clock on growth and development have been well elucidated in model plants, while its regulatory roles in crop species, especially the roles on yield-related traits, are poorly understood. In this study, we characterized the core clock gene CIRCADIAN CLOCK-ASSOCIATED 1 (CCA1) homoeologs in wheat and studied their biological functions in seedling growth and spike development. TaCCA1 homoeologs exhibit typical diurnal expression patterns, which are positively regulated by rhythmic histone modifications including histone H3 lysine 4 trimethylation (H3K4me3), histone H3 lysine 9 acetylation (H3K9Ac), and histone H3 lysine 36 trimethylation (H3K36me3). TaCCA1s are preferentially located in the nucleus and tend to form both homo- and heterodimers. TaCCA1 overexpression (TaCCA1-OE) transgenic wheat plants show disrupted circadian rhythmicity coupling with reduced chlorophyll and starch content, as well as biomass at seedling stage, also decreased spike length, grain number per spike, and grain size at the ripening stage. Further studies using DNA affinity purification followed by deep sequencing [DNA affinity purification and sequencing (DAP-seq)] indicated that TaCCA1 preferentially binds to sequences similarly to "evening elements" (EE) motif in the wheat genome, particularly genes associated with photosynthesis, carbon utilization, and auxin homeostasis, and decreased transcriptional levels of these target genes are observed in TaCCA1-OE transgenic wheat plants. Collectively, our study provides novel insights into a circadian-mediated mechanism of gene regulation to coordinate photosynthetic and metabolic activities in wheat, which is important for optimal plant growth and crop yield formation.
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Affiliation(s)
- Jie Gong
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yimiao Tang
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yongjie Liu
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Renwei Sun
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yanhong Li
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Jinxiu Ma
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Shengquan Zhang
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Fengting Zhang
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zhaobo Chen
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xiangzheng Liao
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hui Sun
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zefu Lu
- National Key Facility of Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Changping Zhao
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Shiqing Gao
- The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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28
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Kim NS, Yu J, Bae S, Kim HS, Park S, Lee K, Lee SI, Kim JA. Identification and Characterization of PSEUDO-RESPONSE REGULATOR (PRR) 1a and 1b Genes by CRISPR/Cas9-Targeted Mutagenesis in Chinese Cabbage (Brassica rapa L.). Int J Mol Sci 2022; 23:ijms23136963. [PMID: 35806003 PMCID: PMC9266808 DOI: 10.3390/ijms23136963] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 02/04/2023] Open
Abstract
The CRISPR/Cas9 site-directed gene-editing system offers great advantages for identifying gene function and crop improvement. The circadian clock measures and conveys day length information to control rhythmic hypocotyl growth in photoperiodic conditions, to achieve optimal fitness, but operates through largely unknown mechanisms. Here, we generated core circadian clock evening components, Brassica rapa PSEUDO-RESPONSE REGULATOR (BrPRR) 1a, 1b, and 1ab (both 1a and 1b double knockout) mutants, using CRISPR/Cas9 genome editing in Chinese cabbage, where 9–16 genetic edited lines of each mutant were obtained. The targeted deep sequencing showed that each mutant had 2–4 different mutation types at the target sites in the BrPRR1a and BrPRR1b genes. To identify the functions of BrPRR1a and 1b genes, hypocotyl length, and mRNA and protein levels of core circadian clock morning components, BrCCA1 (CIRCADIAN CLOCK-ASSOCIATED 1) and BrLHY (LATE ELONGATED HYPOCOTYL) a and b were examined under light/dark cycles and continuous light conditions. The BrPRR1a and 1ab double mutants showed longer hypocotyls, lower core circadian clock morning component mRNA and protein levels, and a shorter circadian rhythm than wildtype (WT). On the other hand, the BrPRR1b mutant was not significantly different from WT. These results suggested that two paralogous genes may not be associated with the same regulatory function in Chinese cabbage. Taken together, our results demonstrated that CRISPR/Cas9 is an efficient tool for achieving targeted genome modifications and elucidating the biological functions of circadian clock genes in B. rapa, for both breeding and improvement.
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Affiliation(s)
- Nan-Sun Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.-S.K.); (H.S.K.); (S.P.); (K.L.); (S.I.L.)
| | - Jihyeon Yu
- Division of Life Sciences, Korea Polar Research Institute, Incheon 21990, Korea;
| | - Sangsu Bae
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea;
| | - Hyang Suk Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.-S.K.); (H.S.K.); (S.P.); (K.L.); (S.I.L.)
| | - Soyoung Park
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.-S.K.); (H.S.K.); (S.P.); (K.L.); (S.I.L.)
| | - Kijong Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.-S.K.); (H.S.K.); (S.P.); (K.L.); (S.I.L.)
| | - Soo In Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.-S.K.); (H.S.K.); (S.P.); (K.L.); (S.I.L.)
| | - Jin A. Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.-S.K.); (H.S.K.); (S.P.); (K.L.); (S.I.L.)
- Correspondence: ; Tel.: +82-63-238-4619
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Odgerel K, Jose J, Karsai-Rektenwald F, Ficzek G, Simon G, Végvári G, Bánfalvi Z. Effects of the repression of GIGANTEA gene StGI.04 on the potato leaf transcriptome and the anthocyanin content of tuber skin. BMC PLANT BIOLOGY 2022; 22:249. [PMID: 35596149 PMCID: PMC9121593 DOI: 10.1186/s12870-022-03636-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND GIGANTEA (GI) is a plant-specific, circadian clock-regulated, nuclear protein with pleiotropic functions found in many plant species. This protein is involved in flowering, circadian clock control, chloroplast biogenesis, carbohydrate metabolism, stress responses, and volatile compound synthesis. In potato (Solanum tuberosum L.), its only role appears to be tuber initiation; however, based on findings in other plant species, we hypothesised that the function of GI in potatoes is not restricted only to tuberisation. RESULTS To test this hypothesis, the expression of a GI gene in the commercial potato cultivar 'Désirée' was repressed, and the effects of repression at morphological and transcriptome level were investigated. Previously, two copies of GI genes in potato were found. A construct to reduce the mRNA levels of one of these genes (StGI.04) was assembled, and the effects of antisense repression were studied in greenhouse-grown plants. The highest level of repression reached around 50%. However, this level did not influence tuber formation and yield but did cause a reduction in tuber colour. Using high-performance liquid chromatography (HPLC), significant reductions in cyanidin 3,5-di-O-glucoside and pelargonidin 3,5-di-O-glucoside contents of tuber peels were detected. Anthocyanins are synthesized through a branch of the phenylpropanoid pathway. The transcriptome analysis indicated down-regulation in the expression of PHENYLALANINE AMMONIA LYASE (PAL), the LEUCOANTHOCYANIDIN OXIDISING enzyme gene LDOX, and the MYB-RELATED PROTEIN Hv1 (MYB-Hv1), a transcription factor coding gene, which is presumably involved in the regulation of flavonoid biosynthesis, in the leaves of a selected StGI.04-repressed line. Furthermore, alterations in expression of genes affecting the circadian clock, flowering, starch synthesis, and stress responses were detected in the leaves of the selected StGI.04-repressed line. CONCLUSIONS We tested the effects of antisense repression of StGI.04 expression in potatoes and found that as with GI in other plant species, it influences the expression of the key genes of the circadian clock, flowering, starch synthesis, and stress responses. Furthermore, we detected a novel function of a GI gene in influencing the anthocyanin synthesis and potato tuber skin colour.
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Affiliation(s)
- Khongorzul Odgerel
- Genetics and Biotechnology Institute, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. u. 4, Gödöllő, H-2100, Hungary
| | - Jeny Jose
- Genetics and Biotechnology Institute, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. u. 4, Gödöllő, H-2100, Hungary
- Centre for Agricultural Research, Eötvös Loránd Research Network, Brunszvik u. 2, Martonvásár, H-2462, Hungary
| | - Flóra Karsai-Rektenwald
- Genetics and Biotechnology Institute, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. u. 4, Gödöllő, H-2100, Hungary
| | - Gitta Ficzek
- Department of Fruit Growing, Institute of Horticulture, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, Budapest, H-1118, Hungary
| | - Gergely Simon
- Department of Fruit Growing, Institute of Horticulture, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, Budapest, H-1118, Hungary
| | - György Végvári
- Institute of Viticulture and Oenology, Faculty of Natural Sciences, Eszterházy Károly Catholic University, Eszterházy tér 1, Eger, H-3300, Hungary
| | - Zsófia Bánfalvi
- Genetics and Biotechnology Institute, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. u. 4, Gödöllő, H-2100, Hungary.
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Cai Z, Zhang Y, Tang W, Chen X, Lin C, Liu Y, Ye Y, Wu W, Duan Y. LUX ARRHYTHMO Interacts With ELF3a and ELF4a to Coordinate Vegetative Growth and Photoperiodic Flowering in Rice. FRONTIERS IN PLANT SCIENCE 2022; 13:853042. [PMID: 35401642 PMCID: PMC8993510 DOI: 10.3389/fpls.2022.853042] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/22/2022] [Indexed: 05/27/2023]
Abstract
The evening complex (EC) plays a critical role in photoperiod flowering in Arabidopsis. Nevertheless, the underlying functions of individual components and coordinate regulation mechanism of EC genes in rice flowering remain to be elucidated. Here, we characterized the critical role of LUX ARRHYTHMO (LUX) in photoperiod perception and coordinating vegetative growth and flowering in rice. Non-functional alleles of OsLUX extremely extended vegetative phase, leading to photoperiod-insensitive late flowering and great increase of grain yield. OsLUX displayed an obvious diurnal rhythm expression with the peak at dusk and promoted rice flowering via coordinating the expression of genes associated with the circadian clock and the output integrators of photoperiodic flowering. OsLUX combined with OsELF4a and OsELF3a or OsELF3b to form two ECs, of which the OsLUX-OsELF3a-OsELF4a was likely the dominant promoter for photoperiodic flowering. In addition, OsELF4a was also essential for promoting rice flowering. Unlike OsLUX, loss OsELF4a displayed a marginal influence under short-day (SD) condition, but markedly delayed flowering time under long-day (LD) condition. These results suggest that rice EC genes share the function of promoting flowering. This is agreement with the orthologs of SD plant, but opposite to the counterparts of LD species. Taken together, rice EC genes display similar but not identical function in photoperiodic flowering, probably through regulating gene expression cooperative and independent. These findings facilitate our understanding of photoperiodic flowering in plants, especially the SD crops.
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Affiliation(s)
- Zhengzheng Cai
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yudan Zhang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Weiqi Tang
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xuequn Chen
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Chenchen Lin
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yang Liu
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yanfang Ye
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Weiren Wu
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yuanlin Duan
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Fujian Key Laboratory of Crop Breeding by Design, Fujian Agriculture and Forestry University, Fuzhou, China
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Suzuki Y, Ishiyama K, Yoon DK, Takegahara-Tamakawa Y, Kondo E, Suganami M, Wada S, Miyake C, Makino A. Suppression of chloroplast triose phosphate isomerase evokes inorganic phosphate-limited photosynthesis in rice. PLANT PHYSIOLOGY 2022; 188:1550-1562. [PMID: 34893891 PMCID: PMC8896644 DOI: 10.1093/plphys/kiab576] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/14/2021] [Indexed: 05/12/2023]
Abstract
The availability of inorganic phosphate (Pi) for ATP synthesis is thought to limit photosynthesis at elevated [CO2] when Pi regeneration via sucrose or starch synthesis is limited. We report here another mechanism for the occurrence of Pi-limited photosynthesis caused by insufficient capacity of chloroplast triose phosphate isomerase (cpTPI). In cpTPI-antisense transgenic rice (Oryza sativa) plants with 55%-86% reductions in cpTPI content, CO2 sensitivity of the rate of CO2 assimilation (A) decreased and even reversed at elevated [CO2]. The pool sizes of the Calvin-Benson cycle metabolites from pentose phosphates to 3-phosphoglycerate increased at elevated [CO2], whereas those of ATP decreased. These phenomena are similar to the typical symptoms of Pi-limited photosynthesis, suggesting sufficient capacity of cpTPI is necessary to prevent the occurrence of Pi-limited photosynthesis and that cpTPI content moderately affects photosynthetic capacity at elevated [CO2]. As there tended to be slight variations in the amounts of total leaf-N depending on the genotypes, relationships between A and the amounts of cpTPI were examined after these parameters were expressed per unit amount of total leaf-N (A/N and cpTPI/N, respectively). A/N at elevated [CO2] decreased linearly as cpTPI/N decreased before A/N sharply decreased, owing to further decreases in cpTPI/N. Within this linear range, decreases in cpTPI/N by 80% led to decreases up to 27% in A/N at elevated [CO2]. Thus, cpTPI function is crucial for photosynthesis at elevated [CO2].
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Affiliation(s)
- Yuji Suzuki
- Faculty of Agriculture, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Keiki Ishiyama
- Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Dong-Kyung Yoon
- Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | | | - Eri Kondo
- Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Mao Suganami
- Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
| | - Shinya Wada
- Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Chikahiro Miyake
- Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Amane Makino
- Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan
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Li C, Liu XJ, Yan Y, Alam MS, Liu Z, Yang ZK, Tao RF, Yue EK, Duan MH, Xu JH. OsLHY is involved in regulating flowering through the Hd1- and Ehd1- mediated pathways in rice (Oryza sativa L.). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 315:111145. [PMID: 35067308 DOI: 10.1016/j.plantsci.2021.111145] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/01/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
Flowering time (or heading date in crops) is a critical agronomic trait for rice reproduction and adaptation. The circadian clock is an endogenous oscillator that is involved in controlling photoperiodic flowering. The rice LATE ELONGATED HYPOCOTYL (OsLHY), the core oscillator component of circadian clock, is a homolog of the LHY/CCA1 in Arabidopsis. Here we showed that CRISPR/Cas9-engineered mutations in OsLHY caused late flowering in rice only under natural long-day (nLD) and short-day (nSD) conditions, but not artificial SD (10 h light/14 h dark) conditions. In the oslhy mutant, the diurnal expression of circadian clock-related genes was seriously affected under both LD and SD conditions. Furthermore, the expression of the flowering activators Ehd1, Hd3a and RFT1 was down-regulated and flowering repressors Hd1 and Ghd7 was up-regulated in the oslhy mutant under LD conditions. While the transcripts of flowering-related genes were not dramatically influenced under SD conditions. Dual-luciferase assays showed that OsLHY repressed the transcription of OsGI, Hd1, Ghd7, Hd3a, RFT1 and OsELF3, and activated the transcription of Ehd1. Moreover, the yeast one hybrid assay and electrophoretic mobility shift assay confirmed that OsLHY directly repressed OsGI, RFT1 and OsELF3 by binding to their promoters, which is consistent with that in Arabidopsis. These results suggested that the OsLHY can promote rice flowering mainly through regulating Hd1 and Ehd1.
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Affiliation(s)
- Chao Li
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China; Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Shandong, 276034, China
| | - Xue-Jiao Liu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Yan Yan
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Mohammad Shah Alam
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Zhen Liu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Zhen-Kun Yang
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Ruo-Fu Tao
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Er-Kui Yue
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Hua Duan
- Zhejiang Zhengjingyuan Pharmacy Chain Co., Ltd. & Hangzhou Zhengcaiyuan Pharmaceutical Co., Ltd., Hangzhou, 310021, China
| | - Jian-Hong Xu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China; Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Shandong, 276034, China.
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Whole-Genome Sequencing Revealed a Late-Maturing Isogenic Rice Koshihikari Integrated with Hd16 Gene Derived from an Ise Shrine Mutant. Int J Genomics 2022; 2022:4565977. [PMID: 35036423 PMCID: PMC8758330 DOI: 10.1155/2022/4565977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/24/2021] [Accepted: 07/26/2021] [Indexed: 11/18/2022] Open
Abstract
We identified the key genes controlling the late maturation of the Japonica cultivar Isehikari, which was found at Ise Jingu Shrine and matures 6 days later than Koshihikari. We conducted a genetics-based approach through this study. First, the latest mature plants, which flowered later than Isehikari, were segregated in the F2 and F3 generations of Koshihikari×Isehikari. Next, the linkage relationship of a single late-maturing gene with the SSR markers on the long arm of chromosome 3 was inferred by using late-maturing homozygous F2 segregants. Moreover, genetic analyses of late maturity were conducted through the process of six times of continuous backcross with Koshihikari as a recurrent parent by using the late-maturing homozygous F3 line as a nonrecurrent parent, thus developing a late-maturing isogenic Koshihikari (BC6F2). As a result, we elucidated a single late-maturing gene with incomplete dominance that caused the 14-day maturation delay of Koshihikari. The whole-genome sequencing was conducted on both of Koshihikari and the late-maturing isogenic Koshihikari. Then, the SNP call was conducted as the reference genome of Koshihikari. Finally, a single SNP was identified in the key gene Hd16 of the late-maturing isogenic Koshihikari.
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Yoshioka H, Kimura K, Ogo Y, Ohtsuki N, Nishizawa-Yokoi A, Itoh H, Toki S, Izawa T. Real-Time Monitoring of Key Gene Products Involved in Rice Photoperiodic Flowering. FRONTIERS IN PLANT SCIENCE 2021; 12:766450. [PMID: 34975949 PMCID: PMC8715009 DOI: 10.3389/fpls.2021.766450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
Flowering is an important biological process through which plants determine the timing of reproduction. In rice, florigen mRNA is induced more strongly when the day length is shorter than the critical day length through recognition of 30-min differences in the photoperiod. Grain number, plant height, and heading date 7 (Ghd7), which encodes a CCT-domain protein unique to monocots, has been identified as a key floral repressor in rice, and Heading date 1 (Hd1), a rice ortholog of the Arabidopsis floral activator CONSTANS (CO), is another key floral regulator gene. The Hd1 gene product has been shown to interact with the Ghd7 gene product to form a strong floral repressor complex under long-day conditions. However, the mRNA dynamics of these genes cannot explain the day-length responses of their downstream genes. Thus, a real-time monitoring system of these key gene products is needed to elucidate the molecular mechanisms underlying accurate photoperiod recognition in rice. Here, we developed a monitoring system using luciferase (LUC) fusion protein lines derived from the Ghd7-LUC and Hd1-LUC genes. We successfully obtained a functionally complemented gene-targeted line for Ghd7-LUC. Using this system, we found that the Ghd7-LUC protein begins to accumulate rapidly after dawn and reaches its peak more rapidly under a short-day condition than under a long-day condition. Our system provides a powerful tool for revealing the accurate time-keeping regulation system incorporating these key gene products involved in rice photoperiodic flowering.
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Affiliation(s)
- Hayato Yoshioka
- Laboratory of Plant Breeding and Genetics, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Keiko Kimura
- Laboratory of Plant Breeding and Genetics, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuko Ogo
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Namie Ohtsuki
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Ayako Nishizawa-Yokoi
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Hironori Itoh
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Seiichi Toki
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Japan
| | - Takeshi Izawa
- Laboratory of Plant Breeding and Genetics, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Nagalla AD, Nishide N, Hibara KI, Izawa T. High Ambient Temperatures Inhibit Ghd7-Mediated Flowering Repression in Rice. PLANT & CELL PHYSIOLOGY 2021; 62:1745-1759. [PMID: 34498083 DOI: 10.1093/pcp/pcab129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 08/13/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
The anticipation of changing seasons is crucial for reproduction in plants. Despite the broad cultivation area, the effects of ambient temperature on photoperiodic flowering are largely unknown in rice. Here, we first examined flowering time under four distinct conditions: short-day or long-day and high or low temperature, using cultivars, nearly isogenic lines, and mutants in rice. We also examined gene expression patterns of key flowering-time genes using the same lines under various conditions including temporal dynamics after light pulses. In addition to delayed flowering because of low growth rates, we found that photoperiodic flowering is clearly enhanced by both Hd1 and Ghd7 genes under low-temperature conditions in rice. We also revealed that PhyB can control Ghd7 repressor activity as a temperature sensor to inhibit Ehd1, Hd3a and RFT1 at lower temperatures, likely through a post-transcriptional regulation, despite inductive photoperiod conditions. Furthermore, we found that rapid reduction of Ghd7 messenger RNA (mRNA) under high-temperature conditions can lead to mRNA increase in a rice florigen gene, RFT1. Thus, multiple temperature-sensing mechanisms can affect photoperiodic flowering in rice. The rising of ambient temperatures in early summer likely contributes to the inhibition of Ghd7 repressor activity, resulting in the appropriate floral induction of rice in temperate climates.
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Affiliation(s)
- Asanga Deshappriya Nagalla
- Laboratory of Plant Breeding and Genetics, Department of Agricultural and Environmental Biology, The University of Tokyo, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - Noriko Nishide
- Laboratory of Plant Breeding and Genetics, Department of Agricultural and Environmental Biology, The University of Tokyo, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - Ken-Ichiro Hibara
- Laboratory of Plant Breeding and Genetics, Department of Agricultural and Environmental Biology, The University of Tokyo, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - Takeshi Izawa
- Laboratory of Plant Breeding and Genetics, Department of Agricultural and Environmental Biology, The University of Tokyo, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
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Wijma M, Lembke CG, Diniz AL, Santini L, Zambotti-Villela L, Colepicolo P, Carneiro MS, Souza GM. Planting Season Impacts Sugarcane Stem Development, Secondary Metabolite Levels, and Natural Antisense Transcription. Cells 2021; 10:cells10123451. [PMID: 34943959 PMCID: PMC8700069 DOI: 10.3390/cells10123451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/13/2022] Open
Abstract
To reduce the potentially irreversible environmental impacts caused by fossil fuels, the use of renewable energy sources must be increased on a global scale. One promising source of biomass and bioenergy is sugarcane. The study of this crop's development in different planting seasons can aid in successfully cultivating it in global climate change scenarios. The sugarcane variety SP80-3280 was field grown under two planting seasons with different climatic conditions. A systems biology approach was taken to study the changes on physiological, morphological, agrotechnological, transcriptomics, and metabolomics levels in the leaf +1, and immature, intermediate and mature internodes. Most of the variation found within the transcriptomics and metabolomics profiles is attributed to the differences among the distinct tissues. However, the integration of both transcriptomics and metabolomics data highlighted three main metabolic categories as the principal sources of variation across tissues: amino acid metabolism, biosynthesis of secondary metabolites, and xenobiotics biodegradation and metabolism. Differences in ripening and metabolite levels mainly in leaves and mature internodes may reflect the impact of contrasting environmental conditions on sugarcane development. In general, the same metabolites are found in mature internodes from both "one-year" and "one-and-a-half-year sugarcane", however, some metabolites (i.e., phenylpropanoids with economic value) and natural antisense transcript expression are only detected in the leaves of "one-year" sugarcane.
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Affiliation(s)
- Maryke Wijma
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil; (M.W.); (C.G.L.); (A.L.D.); (L.S.); (L.Z.-V.); (P.C.)
| | - Carolina Gimiliani Lembke
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil; (M.W.); (C.G.L.); (A.L.D.); (L.S.); (L.Z.-V.); (P.C.)
| | - Augusto Lima Diniz
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil; (M.W.); (C.G.L.); (A.L.D.); (L.S.); (L.Z.-V.); (P.C.)
| | - Luciane Santini
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil; (M.W.); (C.G.L.); (A.L.D.); (L.S.); (L.Z.-V.); (P.C.)
| | - Leonardo Zambotti-Villela
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil; (M.W.); (C.G.L.); (A.L.D.); (L.S.); (L.Z.-V.); (P.C.)
| | - Pio Colepicolo
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil; (M.W.); (C.G.L.); (A.L.D.); (L.S.); (L.Z.-V.); (P.C.)
| | - Monalisa Sampaio Carneiro
- Centro de Ciências Agrárias, Departamento de Biotecnologia e Produção Vegetal e Animal, Universidade Federal de São Carlos, São Paulo 13600-970, Brazil;
| | - Glaucia Mendes Souza
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil; (M.W.); (C.G.L.); (A.L.D.); (L.S.); (L.Z.-V.); (P.C.)
- Correspondence:
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Hotta CT. From crops to shops: how agriculture can use circadian clocks. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:7668-7679. [PMID: 34363668 DOI: 10.1093/jxb/erab371] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
Knowledge about environmental and biological rhythms can lead to more sustainable agriculture in a climate crisis and resource scarcity scenario. When rhythms are considered, more efficient and cost-effective management practices can be designed for food production. The circadian clock is used to anticipate daily and seasonal changes, organize the metabolism during the day, integrate internal and external signals, and optimize interaction with other organisms. Plants with a circadian clock in synchrony with the environment are more productive and use fewer resources. In medicine, chronotherapy is used to increase drug efficacy, reduce toxicity, and understand the health effects of circadian clock disruption. Here, I show evidence of why circadian biology can be helpful in agriculture. However, as evidence is scattered among many areas, they frequently lack field testing, integrate poorly with other rhythms, or suffer inconsistent results. These problems can be mitigated if researchers of different areas start collaborating under a new study area-circadian agriculture.
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Affiliation(s)
- Carlos Takeshi Hotta
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
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Dantas LLB, Dourado MM, de Lima NO, Cavaçana N, Nishiyama MY, Souza GM, Carneiro MS, Caldana C, Hotta CT. Field microenvironments regulate crop diel transcript and metabolite rhythms. THE NEW PHYTOLOGIST 2021; 232:1738-1749. [PMID: 34312886 DOI: 10.1111/nph.17650] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Most research in plant chronobiology has been done in laboratory conditions. However, laboratories usually fail to mimic natural conditions and their slight fluctuations, highlighting or obfuscating rhythmicity. High-density crops, such as sugarcane (Saccharum hybrid), generate field microenvironments with specific light and temperature regimes resulting from mutual shading. We measured the metabolic and transcriptional rhythms in the leaves of 4-month-old (4 mo) and 9 mo field-grown sugarcane. Most of the assayed rhythms in 9 mo sugarcane peaked >1 h later than in 4 mo sugarcane, including rhythms of the circadian clock gene, LATE ELONGATED HYPOCOTYL (LHY). We hypothesized that older sugarcane perceives dawn later than younger sugarcane as a consequence of self-shading. As a test, we measured LHY rhythms in plants on the east and the west sides of a field. We also tested if a wooden wall built between lines of sugarcane plants changed their rhythms. The LHY peak was delayed in the plants in the west of the field or beyond the wall; both shaded at dawn. We conclude that plants in the same field may have different phases resulting from field microenvironments, impacting important agronomical traits, such as flowering time, stalk weight and number.
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Affiliation(s)
- Luíza Lane Barros Dantas
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Maíra Marins Dourado
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Natalia Oliveira de Lima
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Natale Cavaçana
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Milton Yutaka Nishiyama
- Laboratório Especial de Toxicologia Aplicada, Instituto Butantan, São Paulo, SP, 05503-900, Brazil
| | - Glaucia Mendes Souza
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Monalisa Sampaio Carneiro
- Departamento de Biotecnologia e Produção Vegetal e Animal, Centro de Ciências Agrárias, Universidade Federal de São Carlos, São Carlos, SP, 13600-970, Brazil
| | - Camila Caldana
- Max Planck Institute for Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Carlos Takeshi Hotta
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
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Kim NS, Kim SJ, Jo JS, Lee JG, Lee SI, Kim DH, Kim JA. The BrGI Circadian Clock Gene Is Involved in the Regulation of Glucosinolates in Chinese Cabbage. Genes (Basel) 2021; 12:genes12111664. [PMID: 34828270 PMCID: PMC8621042 DOI: 10.3390/genes12111664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022] Open
Abstract
Circadian clocks integrate environmental cues with endogenous signals to coordinate physiological outputs. Clock genes in plants are involved in many physiological and developmental processes, such as photosynthesis, stomata opening, stem elongation, light signaling, and floral induction. Many Brassicaceae family plants, including Chinese cabbage (Brassica rapa ssp. pekinensis), produce a unique glucosinolate (GSL) secondary metabolite, which enhances plant protection, facilitates the design of functional foods, and has potential medical applications (e.g., as antidiabetic and anticancer agents). The levels of GSLs change diurnally, suggesting a connection to the circadian clock system. We investigated whether circadian clock genes affect the biosynthesis of GSLs in Brassica rapa using RNAi-mediated suppressed transgenic Brassica rapa GIGENTEA homolog (BrGI knockdown; hereafter GK1) Chinese cabbage. GIGANTEA plays an important role in the plant circadian clock system and is related to various developmental and metabolic processes. Using a validated GK1 transgenic line, we performed RNA sequencing and high-performance liquid chromatography analyses. The transcript levels of many GSL pathway genes were significantly altered in GK1 transgenic plants. In addition, GSL contents were substantially reduced in GK1 transgenic plants. We report that the BrGI circadian clock gene is required for the biosynthesis of GSLs in Chinese cabbage plants.
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Affiliation(s)
- Nan Sun Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.S.K.); (S.I.L.)
| | - Su Jeong Kim
- Department of Plant Science and Technology, Chung-Ang University, Anseong 17546, Korea;
| | - Jung Su Jo
- Department of Horticulture, College of Agriculture & Life Sciences, Jeonbuk National University, Jeonju 54896, Korea; (J.S.J.); (J.G.L.)
| | - Jun Gu Lee
- Department of Horticulture, College of Agriculture & Life Sciences, Jeonbuk National University, Jeonju 54896, Korea; (J.S.J.); (J.G.L.)
| | - Soo In Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.S.K.); (S.I.L.)
| | - Dong Hwan Kim
- Department of Plant Science and Technology, Chung-Ang University, Anseong 17546, Korea;
- Correspondence: (D.H.K.); (J.A.K.); Tel.: +82-31-670-3260 (D.H.K.); +82-63-238-4619 (J.A.K.)
| | - Jin A. Kim
- Department of Agricultural Biotechnology, National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea; (N.S.K.); (S.I.L.)
- Correspondence: (D.H.K.); (J.A.K.); Tel.: +82-31-670-3260 (D.H.K.); +82-63-238-4619 (J.A.K.)
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Wang X, He Y, Wei H, Wang L. A clock regulatory module is required for salt tolerance and control of heading date in rice. PLANT, CELL & ENVIRONMENT 2021; 44:3283-3301. [PMID: 34402093 DOI: 10.1111/pce.14167] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 07/23/2021] [Accepted: 08/10/2021] [Indexed: 05/23/2023]
Abstract
The circadian clock plays multiple roles in plant stress responses and developmental transition phases. Nevertheless, the underlying molecular mechanisms and individual clock components that coordinately regulate important agronomic traits of rice such as salt tolerance and heading date remain to be elucidated. Here, we identify a rice ternary repressive protein complex composed of OsELF4a, OsELF3-1 and OsLUX, which was designated as OsEC1 in analogy to a similar complex in Arabidopsis. OsELF4a physically interacts with OsELF3-1 and OsELF3-2 in nucleus, whilst OsELF3-1 rather than OsELF3-2 strongly interacts with OsLUX, a Myb-domain containing transcriptional factor. Phenotypic analyses show a role for this complex in heading and salt tolerance. The loss-of-function mutants of OsEC1 exhibit lower survival rate under salt stress and late heading date. Transcriptomic profiling together with biochemical assays identified the GIGANTEA homologue OsGI as a direct transcriptional target of OsEC1. Notably, the osgi-101 mutant, generated by CRISPR/Cas9, is salt tolerant and exhibits early heading date in long day conditions. Together, our findings characterized a transcriptional module in rice composed by the OsEC1 repressing OsGI, which links the circadian clock with salt tolerance and control of heading date.
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Affiliation(s)
- Xiling Wang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yuqing He
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Hua Wei
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lei Wang
- Key Laboratory of Plant Molecular Physiology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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Numajiri Y, Yoshino K, Teramoto S, Hayashi A, Nishijima R, Tanaka T, Hayashi T, Kawakatsu T, Tanabata T, Uga Y. iPOTs: Internet of Things-based pot system controlling optional treatment of soil water condition for plant phenotyping under drought stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:1569-1580. [PMID: 34197670 DOI: 10.1111/tpj.15400] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 05/06/2023]
Abstract
A cultivation facility that can assist users in controlling the soil water condition is needed for accurately phenotyping plants under drought stress in an artificial environment. Here we report the Internet of Things-based pot system controlling optional treatment of soil water condition (iPOTs), an automatic irrigation system that mimics the drought condition in a growth chamber. The Wi-Fi-enabled iPOTs system allows water supply from the bottom of the pot, based on the soil water level set by the user, and automatically controls the soil water level at a desired depth. The iPOTs also allows users to monitor environmental parameters, such as soil temperature, air temperature, humidity, and light intensity, in each pot. To verify whether the iPOTs mimics the drought condition, we conducted a drought stress test on rice (Oryza sativa L.) varieties and near-isogenic lines, with diverse root system architecture, using the iPOTs system installed in a growth chamber. Similar to the results of a previous drought stress field trial, the growth of shallow-rooted rice accessions was severely affected by drought stress compared with that of deep-rooted accessions. The microclimate data obtained using the iPOTs system increased the accuracy of plant growth evaluation. Transcriptome analysis revealed that pot positions in the growth chamber had little impact on plant growth. Together, these results suggest that the iPOTs system is a reliable platform for phenotyping plants under drought stress.
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Affiliation(s)
- Yuko Numajiri
- Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-2 Kan-non-dai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Kanami Yoshino
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 3-1-3 Kan-non-dai, Tsukuba, Ibaraki, 305-8604, Japan
| | - Shota Teramoto
- Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-2 Kan-non-dai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Atsushi Hayashi
- Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba, 292-0818, Japan
| | - Ryo Nishijima
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 3-1-3 Kan-non-dai, Tsukuba, Ibaraki, 305-8604, Japan
| | - Tsuyoshi Tanaka
- Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-2 Kan-non-dai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Takeshi Hayashi
- Research Center for Agricultural Information Technology, National Agriculture and Food Research Organization, 3-5-1 Kasumigaseki, Chiyoda, Tokyo, 100-0013, Japan
| | - Taiji Kawakatsu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 3-1-3 Kan-non-dai, Tsukuba, Ibaraki, 305-8604, Japan
| | - Takanari Tanabata
- Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba, 292-0818, Japan
| | - Yusaku Uga
- Institute of Crop Science, National Agriculture and Food Research Organization, 2-1-2 Kan-non-dai, Tsukuba, Ibaraki, 305-8518, Japan
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42
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Sun C, Zhang K, Zhou Y, Xiang L, He C, Zhong C, Li K, Wang Q, Yang C, Wang Q, Chen C, Chen D, Wang Y, Liu C, Yang B, Wu H, Chen X, Li W, Wang J, Xu P, Wang P, Fang J, Chu C, Deng X. Dual function of clock component OsLHY sets critical day length for photoperiodic flowering in rice. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1644-1657. [PMID: 33740293 PMCID: PMC8384598 DOI: 10.1111/pbi.13580] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/18/2021] [Accepted: 03/08/2021] [Indexed: 05/11/2023]
Abstract
Circadian clock, an endogenous time-setting mechanism, allows plants to adapt to unstable photoperiod conditions and induces flowering with proper timing. In Arabidopsis, the central clock oscillator was formed by a series of interlocked transcriptional feedback loops, but little is known in rice so far. By MutMap technique, we identified the candidate gene OsLHY from a later flowering mutant lem1 and further confirmed it through genetic complementation, RNA interference knockdown, and CRISPR/Cas9-knockout. Global transcriptome profiling and expression analyses revealed that OsLHY might be a vital circadian rhythm component. Interestingly, oslhy flowered later under ≥12 h day length but headed earlier under ≤11 h day length. qRT-PCR results exhibited that OsLHY might function through OsGI-Hd1 pathway. Subsequent one-hybrid assays in yeast, DNA affinity purification qPCR, and electrophoretic mobility shift assays confirmed OsLHY could directly bind to the CBS element in OsGI promoter. Moreover, the critical day length (CDL) for function reversal of OsLHY in oslhy (11-12 h) was prolonged in the double mutant oslhy osgi (about 13.5 h), indicating that the CDL set by OsLHY was OsGI dependent. Additionally, the dual function of OsLHY entirely relied on Hd1, as the double mutant oslhy hd1 showed the same heading date with hd1 under about 11.5, 13.5, and 14 h day lengths. Together, OsLHY could fine-tune the CDL by directly regulating OsGI, and Hd1 acts as the final effector of CDL downstream of OsLHY. Our study illustrates a new regulatory mechanism between the circadian clock and photoperiodic flowering.
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Affiliation(s)
- Changhui Sun
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Kuan Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Yi Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Lin Xiang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Changcai He
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Chao Zhong
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Ke Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Qiuxia Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Chuanpeng Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Qian Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Congping Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Dan Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Yang Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Chuanqiang Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Bin Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Hualin Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Xiaoqiong Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Weitao Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Jing Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Peizhou Xu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Pingrong Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
| | - Jun Fang
- Key Laboratory of Soybean Molecular Design BreedingNortheast Institute of Geography and AgroecologyChinese Academy of SciencesHarbinChina
| | - Chengcai Chu
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental BiologyThe Innovative Academy for Seed DesignChinese Academy of SciencesBeijingChina
| | - Xiaojian Deng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaRice Research InstituteSichuan Agricultural UniversityChengduChina
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43
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Markham KK, Greenham K. Abiotic stress through time. THE NEW PHYTOLOGIST 2021; 231:40-46. [PMID: 33780004 DOI: 10.1111/nph.17367] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Throughout plant evolution the circadian clock has expanded into a complex signaling network, coordinating physiological and metabolic processes with the environment. Early land plants faced new environmental pressures that required energy-demanding stress responses. Integrating abiotic stress response into the circadian system provides control over daily energy expenditure. Here, we describe the evolution of the circadian clock in plants and the limited, yet compelling, evidence for conserved regulation of abiotic stress. The need to introduce abiotic stress tolerance into current crops has expanded research into wild accessions and revealed extensive variation in circadian clock parameters across monocot and eudicot species. We argue that research into the ancestral links between the clock and abiotic stress will benefit crop improvement efforts.
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Affiliation(s)
- Kathleen K Markham
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Kathleen Greenham
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, MN, 55108, USA
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Kronenberg L, Yates S, Ghiasi S, Roth L, Friedli M, Ruckle ME, Werner RA, Tschurr F, Binggeli M, Buchmann N, Studer B, Walter A. Rethinking temperature effects on leaf growth, gene expression and metabolism: Diel variation matters. PLANT, CELL & ENVIRONMENT 2021; 44:2262-2276. [PMID: 33230869 PMCID: PMC8359295 DOI: 10.1111/pce.13958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 06/11/2023]
Abstract
Plants have evolved to grow under prominently fluctuating environmental conditions. In experiments under controlled conditions, temperature is often set to artificial, binary regimes with constant values at day and at night. This study investigated how such a diel (24 hr) temperature regime affects leaf growth, carbohydrate metabolism and gene expression, compared to a temperature regime with a field-like gradual increase and decline throughout 24 hr. Soybean (Glycine max) was grown under two contrasting diel temperature treatments. Leaf growth was measured in high temporal resolution. Periodical measurements were performed of carbohydrate concentrations, carbon isotopes as well as the transcriptome by RNA sequencing. Leaf growth activity peaked at different times under the two treatments, which cannot be explained intuitively. Under field-like temperature conditions, leaf growth followed temperature and peaked in the afternoon, whereas in the binary temperature regime, growth increased at night and decreased during daytime. Differential gene expression data suggest that a synchronization of cell division activity seems to be evoked in the binary temperature regime. Overall, the results show that the coordination of a wide range of metabolic processes is markedly affected by the diel variation of temperature, which emphasizes the importance of realistic environmental settings in controlled condition experiments.
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Affiliation(s)
- Lukas Kronenberg
- Crop ScienceInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Steven Yates
- Molecular Plant BreedingInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Shiva Ghiasi
- Grassland SciencesInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Lukas Roth
- Crop ScienceInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Michael Friedli
- Crop ScienceInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Michael E. Ruckle
- Molecular Plant BreedingInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Roland A. Werner
- Grassland SciencesInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Flavian Tschurr
- Crop ScienceInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Melanie Binggeli
- Crop ScienceInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Nina Buchmann
- Grassland SciencesInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Bruno Studer
- Molecular Plant BreedingInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
| | - Achim Walter
- Crop ScienceInstitute of Agricultural Sciences, ETH ZurichZurichSwitzerland
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45
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Cao S, Luo X, Xu D, Tian X, Song J, Xia X, Chu C, He Z. Genetic architecture underlying light and temperature mediated flowering in Arabidopsis, rice, and temperate cereals. THE NEW PHYTOLOGIST 2021; 230:1731-1745. [PMID: 33586137 DOI: 10.1111/nph.17276] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 01/20/2021] [Indexed: 05/23/2023]
Abstract
Timely flowering is essential for optimum crop reproduction and yield. To determine the best flowering-time genes (FTGs) relevant to local adaptation and breeding, it is essential to compare the interspecific genetic architecture of flowering in response to light and temperature, the two most important environmental cues in crop breeding. However, the conservation and variations of FTGs across species lack systematic dissection. This review summarizes current knowledge on the genetic architectures underlying light and temperature-mediated flowering initiation in Arabidopsis, rice, and temperate cereals. Extensive comparative analyses show that most FTGs are conserved, whereas functional variations in FTGs may be species specific and confer local adaptation in different species. To explore evolutionary dynamics underpinning the conservation and variations in FTGs, domestication and selection of some key FTGs are further dissected. Based on our analyses of genetic control of flowering time, a number of key issues are highlighted. Strategies for modulation of flowering behavior in crop breeding are also discussed. The resultant resources provide a wealth of reference information to uncover molecular mechanisms of flowering in plants and achieve genetic improvement in crops.
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Affiliation(s)
- Shuanghe Cao
- Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xumei Luo
- Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Dengan Xu
- Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiuling Tian
- Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jie Song
- Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xianchun Xia
- Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chengcai Chu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhonghu He
- Institute of Crop Sciences, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- International Maize and Wheat Improvement Center China Office, c/o Chinese Academy Agricultural Sciences, Beijing, 100081, China
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46
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Arefian M, Bhagya N, Prasad TSK. Phosphorylation-mediated signalling in flowering: prospects and retrospects of phosphoproteomics in crops. Biol Rev Camb Philos Soc 2021; 96:2164-2191. [PMID: 34047006 DOI: 10.1111/brv.12748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 12/18/2022]
Abstract
Protein phosphorylation is a major post-translational modification, regulating protein function, stability, and subcellular localization. To date, annotated phosphorylation data are available mainly for model organisms and humans, despite the economic importance of crop species and their large kinomes. Our understanding of the phospho-regulation of flowering in relation to the biology and interaction between the pollen and pistil is still significantly lagging, limiting our knowledge on kinase signalling and its potential applications to crop production. To address this gap, we bring together relevant literature that were previously disconnected to present an overview of the roles of phosphoproteomic signalling pathways in modulating molecular and cellular regulation within specific tissues at different morphological stages of flowering. This review is intended to stimulate research, with the potential to increase crop productivity by providing a platform for novel molecular tools.
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Affiliation(s)
- Mohammad Arefian
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Center, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - N Bhagya
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Center, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - T S Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Center, Yenepoya (Deemed to be University), Mangalore, 575018, India
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Su T, Wang Y, Li S, Wang L, Kou K, Kong L, Cheng Q, Dong L, Liu B, Kong F, Lu S, Fang C. A flowering time locus dependent on E2 in soybean. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2021; 41:35. [PMID: 37309325 PMCID: PMC10236059 DOI: 10.1007/s11032-021-01224-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/12/2021] [Indexed: 06/14/2023]
Abstract
Soybean [Glycine max (L.) Merrill] is very sensitive to changes in photoperiod as a typical short-day plant. Photoperiodic flowering influences soybean latitudinal adaptability and yield to a considerable degree. Identifying new quantitative trait loci (QTLs) controlling flowering time is a powerful initial approach for elucidating the mechanisms underlying flowering time and adaptation to different latitudes in soybean. In this study, we developed a Recombinant Inbred Lines (RILs) population and recorded flowering time under natural long-day conditions. We also constructed a high-density genetic map by genotyping-by-sequencing and used it for QTL mapping. In total, we detected twelve QTLs, four of which are stable and named by qR1-2, qR1-4, qR1-6.1, and qR1-10, respectively. Among these four QTLs, qR1-4 and qR1-6.1 are novel. QTL mapping in two sub-populations classified by the genotype of the maturity locus E2, genetic interaction evaluation between E2 and qR1-2, and qRT-PCR indicated that E2 has an epistatic effect on qR1-2, and that causal gene of qR1-2 acts upstream of E2. We presumed the most likely candidate genes according to the resequencing data and briefly analyzed the geographic distributions of these genes. These findings will be beneficial for our understanding of the mechanisms underlying photoperiodic flowering in soybean, contribute to further investigate of E2, and provide genetic resources for molecular breeding of soybean. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-021-01224-1.
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Affiliation(s)
- Tong Su
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yanping Wang
- Mudanjiang Branch of Heilongjiang Academy of Agricultural Sciences, Mudanjiang, China
| | - Shichen Li
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lingshuang Wang
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Kun Kou
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lingping Kong
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Qun Cheng
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Lidong Dong
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Baohui Liu
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Fanjiang Kong
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Sijia Lu
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Chao Fang
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
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Meher PK, Mohapatra A, Satpathy S, Sharma A, Saini I, Pradhan SK, Rai A. PredCRG: A computational method for recognition of plant circadian genes by employing support vector machine with Laplace kernel. PLANT METHODS 2021; 17:46. [PMID: 33902670 PMCID: PMC8074503 DOI: 10.1186/s13007-021-00744-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Circadian rhythms regulate several physiological and developmental processes of plants. Hence, the identification of genes with the underlying circadian rhythmic features is pivotal. Though computational methods have been developed for the identification of circadian genes, all these methods are based on gene expression datasets. In other words, we failed to search any sequence-based model, and that motivated us to deploy the present computational method to identify the proteins encoded by the circadian genes. RESULTS Support vector machine (SVM) with seven kernels, i.e., linear, polynomial, radial, sigmoid, hyperbolic, Bessel and Laplace was utilized for prediction by employing compositional, transitional and physico-chemical features. Higher accuracy of 62.48% was achieved with the Laplace kernel, following the fivefold cross- validation approach. The developed model further secured 62.96% accuracy with an independent dataset. The SVM also outperformed other state-of-art machine learning algorithms, i.e., Random Forest, Bagging, AdaBoost, XGBoost and LASSO. We also performed proteome-wide identification of circadian proteins in two cereal crops namely, Oryza sativa and Sorghum bicolor, followed by the functional annotation of the predicted circadian proteins with Gene Ontology (GO) terms. CONCLUSIONS To the best of our knowledge, this is the first computational method to identify the circadian genes with the sequence data. Based on the proposed method, we have developed an R-package PredCRG ( https://cran.r-project.org/web/packages/PredCRG/index.html ) for the scientific community for proteome-wide identification of circadian genes. The present study supplements the existing computational methods as well as wet-lab experiments for the recognition of circadian genes.
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Affiliation(s)
| | - Ansuman Mohapatra
- Orissa University of Agriculture and Technology, Bhubaneswar, Odisha India
| | - Subhrajit Satpathy
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Anuj Sharma
- Uttarakhand Council for Biotechnology, Pantnagar, Uttarakhand India
| | - Isha Saini
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | | | - Anil Rai
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
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McClung CR. Circadian Clock Components Offer Targets for Crop Domestication and Improvement. Genes (Basel) 2021; 12:genes12030374. [PMID: 33800720 PMCID: PMC7999361 DOI: 10.3390/genes12030374] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/01/2021] [Accepted: 03/04/2021] [Indexed: 12/31/2022] Open
Abstract
During plant domestication and improvement, farmers select for alleles present in wild species that improve performance in new selective environments associated with cultivation and use. The selected alleles become enriched and other alleles depleted in elite cultivars. One important aspect of crop improvement is expansion of the geographic area suitable for cultivation; this frequently includes growth at higher or lower latitudes, requiring the plant to adapt to novel photoperiodic environments. Many crops exhibit photoperiodic control of flowering and altered photoperiodic sensitivity is commonly required for optimal performance at novel latitudes. Alleles of a number of circadian clock genes have been selected for their effects on photoperiodic flowering in multiple crops. The circadian clock coordinates many additional aspects of plant growth, metabolism and physiology, including responses to abiotic and biotic stresses. Many of these clock-regulated processes contribute to plant performance. Examples of selection for altered clock function in tomato demonstrate that with domestication, the phasing of the clock is delayed with respect to the light–dark cycle and the period is lengthened; this modified clock is associated with increased chlorophyll content in long days. These and other data suggest the circadian clock is an attractive target during breeding for crop improvement.
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Affiliation(s)
- C Robertson McClung
- Department of Biological Sciences, Dartmouth College, Hanover, NH 03755, USA
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Liang L, Zhang Z, Cheng N, Liu H, Song S, Hu Y, Zhou X, Zhang J, Xing Y. The transcriptional repressor OsPRR73 links circadian clock and photoperiod pathway to control heading date in rice. PLANT, CELL & ENVIRONMENT 2021; 44:842-855. [PMID: 33377200 DOI: 10.1111/pce.13987] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 05/24/2023]
Abstract
The phase transition from vegetative to reproductive growth is triggered by internal and external signals that participate in circadian clock in plants. We identified a rice floral inhibitor OsPRR73 encoding a CONSTANS protein. Overexpression of OsPRR73 resulted in late heading under both long-day (LD) and short-day (SD) conditions. Knockout mutants led to early heading under LD conditions but no change under SD. OsPRR73 mRNA accumulated at noon and exhibited a robust oscillation under constant light (LL) and constant darkness (DD) conditions. OsPRR73 overexpression exerted negative feedback on endogenous OsPRR73 expression and altered diurnal expressions of key flowering genes and circadian clock genes. OsPRR73 bound to the promoters of the floral gene Ehd1 and the circadian gene OsLHY, and significantly suppressed their expression at dawn. In LL and DD, the oscillatory patterns of the circadian genes OsLHY, OsTOC1, OsGI and OsELF3 were varied in OsPRR73OX and osprr73 mutants. OsPRR73 expression was decreased in osphyb mutants, and overexpression of OsPRR73 complemented the early heading date phenotype of osphyb, indicating OsPRR73 works downstream of OsPhyB. Therefore, OsPRR73 is involved in a feedback loop of the rice clock and connects the photoperiod flowering pathway by binding to the Ehd1 promoter in rice.
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Affiliation(s)
- Liwen Liang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Zhanyi Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Niannian Cheng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Haiyang Liu
- College of Agriculture, Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, China
| | - Song Song
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Yong Hu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Xiangchun Zhou
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Jia Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Yongzhong Xing
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
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