GIGANTEA Enables Drought Escape Response via Abscisic Acid-Dependent Activation of the Florigens and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1

PLANT PHYSIOLOGY, Journal Year: 2013, Volume and Issue: 162(3), P. 1706 - 1719

Published: May 29, 2013

Modulation of the transition to flowering plays an important role in adaptation drought. The drought-escape (DE) response allows plants adaptively shorten their life cycle make seeds before severe stress leads death. However, molecular basis DE is unknown. A screen different Arabidopsis (Arabidopsis thaliana) time mutants under DE-triggering conditions revealed central flower-promoting gene GIGANTEA (GI) and florigen genes FLOWERING LOCUS T (FT) TWIN SISTER OF FT (TSF) response. Further screens showed that phytohormone abscisic acid required for response, positively regulating long-day conditions. Drought promotes transcriptional up-regulation florigens acid- photoperiod-dependent manner, so early only occurs long days. Along with florigens, floral integrator SUPPRESSOR OVEREXPRESSION CONSTANS1 also up-regulated a similar fashion contributes activation TSF. was recovered short days absence repressor SHORT VEGETATIVE PHASE or GI-overexpressing plants. Our data reveal key GI connecting photoperiodic cues environmental independently from FT/TSF activator CONSTANS. This mechanism explains how may act upon photoperiodically controlled thus enabling plastic responses.

Language: Английский

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Vernalization-Triggered Intragenic Chromatin Loop Formation by Long Noncoding RNAs

Developmental Cell, Journal Year: 2017, Volume and Issue: 40(3), P. 302 - 312.e4

Published: Jan. 26, 2017

Language: Английский

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Small RNAs: Big Impact on Plant Development

Trends in Plant Science, Journal Year: 2017, Volume and Issue: 22(12), P. 1056 - 1068

Published: Oct. 12, 2017

Small RNA networks have a conserved role in plant developmental processes such as tissue patterning and lateral organ morphology. pathways adopted new functions to create novel morphologies. The proteins that process small RNAs vary between species are highly diverse. While the of determining cell identity has been extensively studied, contribution noncoding molecules miRNAs siRNAs also recognised. bind complementary sites target mRNA trigger degradation or translational inhibition those targets. Recent studies revealed play pivotal roles key embryo, meristem, leaf, flower. Furthermore, these recruited throughout evolution into diverse forms shapes. This review focuses on establishing during development creating morphological diversity evolution. Since discovery 22-nucleotide molecule regulates post-embryonic Caenorhabditis elegans [1Lee R.C. et al.The C. heterochronic gene lin-4 encodes with antisense complementarity lin-14.Cell. 1993; 75: 843-854Abstract Full Text PDF PubMed Scopus (6905) Google Scholar], (see Glossary) found across many eukaryotic organisms, ranging from plants [2Hamilton A.J. Baulcombe D.C. A posttranscriptional silencing plants.Science. 1999; 286: 950-952Crossref (1978) Scholar] mammals [3Elbashir S.M. al.Duplexes 21-nucleotide mediate interference cultured mammalian cells.Nature. 2001; 411: 494-498Crossref (7240) Scholar]. categorised several classes, siRNAs, based their mode biogenesis (Box 1). Once processed precursor transcripts, mature direct ARGONAUTE (AGO) repress transcripts 2). In plants, it is now clear endogenous regulation (Table By targeting major transcription factors, work signals can diffuse tissues [4Chitwood D.H. al.Pattern formation via mobility.Genes Dev. 2009; 23: 549-554Crossref (218) therefore central networks. this we highlight how regulate mechanisms evolved seen species.Box 1Small Classification BiogenesisClasses defined by modes biogenesis: classes which single-stranded forming hairpin loop (hpRNA) others dsRNA (siRNA). These be further classified according evolutionary origin steps (reviewed [95Axtell M.J. comparison plants.Annu. Rev. Plant Biol. 2013; 64: 137-159Crossref (300) Scholar]).hpRNAs give rise few types miRNA, perhaps most studied focus review. transcribed DNA-dependent polymerase II (Pol II) [96Lee Y. al.MicroRNA genes II.EMBO J. 2004; 4051-4060Crossref (2451) help NEGATIVES ON TATA LESS2 (NOT2) [97Wang F. Perry S.E. Identification targets FUSCA3, regulator Arabidopsis seed development.Plant Physiol. 161: 1251-1264Crossref (0) miRNA primary transcript (pri-miRNA) then 5′ capped 3′ polyadenylated [98Chen X.M. development.Annu. Cell 25: 21-44Crossref However, some siRNA families require action plant-specific IV IV) [99Li S. al.Detection Pol IV/RDR2-dependent at genomic scale reveals features biogenesis.Genome Res. 2015; 235-245Crossref (50) addition, recruit different locations, where directs synthesis [100Zheng B. al.Intergenic coordinates V siRNA-directed transcriptional Arabidopsis.Genes 2850-2860Crossref (167) transcribed, undergo two possible fates depending its structure. Self-complementary hpRNAs, including miRNAs, directly cleaved Dicer-like (DCL) proteins, while tasiRNA RNA-dependent polymerases (RdRs) before DCL processing [23Peragine A. al.SGS3 SGS2/SDE1/RDR6 required for juvenile production trans-acting 18: 2368-2379Crossref (569) Before RdR processing, tasiRNAs requires directed cleavage AGO 2), led an miRNA.DCL comprise six domains, RNase III, PAZ, helicase recognise cleave precise position (Figure I) [101Margis R. diversification Dicers plants.FEBS Lett. 2006; 580: 2442-2450Crossref number varies species, four five poplar rice [102Liu Q. al.Dicer-like plants.Funct. Integr. Genom. 9: 277-286Crossref (52) Some DCLs multiple roles, patterns expression specificity [103Schauer al.DICER-LIKE1: blind men elephants development.Trends Sci. 2002; 7: 487-491Abstract Scholar, 104Blevins T. al.Four viral DNA virus induced silencing.Nucleic Acids 34: 6233-6246Crossref depends both sequence secondary structure [105Vermeulen contributions Dicer efficiency.RNA. 2005; 11: 674-682Crossref (181) During DCL1 complex other RNA-binding HYPONASTIC LEAVES1 (HYL1), SERRATE (SE), TOUGH (TGH), DAWDLE (DDL) [106Borges Martienssen R.A. expanding world plants.Nat. Mol. 16: 727-741Crossref (138) Scholar]) I).After DCLs, specific modifications affect stability. methyl transferase HUA ENHANCER 1 (HEN1) was shown methylate terminal ribose [107Park W. al.CARPEL FACTORY, homolog, HEN1, protein, act microRNA metabolism thaliana.Curr. 12: 1484-1495Abstract (821) 108Yu al.Methylation crucial step biogenesis.Science. 307: 932-935Crossref (567) I). modification decreases affinity SMALL DEGRADING ENZYME (SDN1), which, name suggests, degrades responsible turnover [109Ramachandran V. Chen X. Degradation microRNAs family exoribonucleases Arabidopsis.Science. 2008; 321: 1490-1492Crossref (249) methylation added HEN1 prevents SUPPRESSOR (HESO1), enzyme loaded 2) polyuridylates [110Zhao nucleotidyl HESO1 uridylates unmethylated degradation.Curr. 2012; 22: 689-694Abstract (93) polyuridyl tail increases SDN1, making counteracting partners determination stability Interestingly, end once cleaved, contributing [111Ren G. protects AGO1-associated activity fragments generated AGO1 cleavage.Proc. Natl. Acad. U. 2014; 111: 6365-6370Crossref (33) again, AGO-loaded Scholar].Box 2AGOs Their Diverse FunctionsOnce processed, exported cytoplasm HASTY1 (HST1) [112Park M.Y. al.Nuclear export Arabidopsis.Proc. 102: 3691-3696Crossref (378) incorporated RISC, multisubunit ribonucleoprotein comprising AGOs accessory [113Iki al.In vitro assembly RNA-induced complexes facilitated molecular chaperone HSP90.Mol. Cell. 2010; 39: 282-291Abstract binds sequences, thereby RISC transcripts. ten homologues ranges translation direction chromatin [114Rogers K. Biogenesis, turnover, microRNAs.Plant 2383-2399Crossref (311) Scholar]). variety appears essential creation AGO1, AGO7, AGO10 mainly involved thought follow normal decay pathway involving XRN4 [115Souret F.F. al.AtXRN4 substrates include selected targets.Mol. 15: 173-183Abstract (215) association protein partly specified RNA. For example, selects uridine. uridine, considered important function [116Mi al.Sorting argonaute nucleotide.Cell. 133: 116-127Abstract (674) closely related paralogue but context associated [10Ji L. al.ARGONAUTE10 ARGONAUTE1 termination floral stem cells through Arabidopsis.PLoS Genet. 2011; e1001358Crossref AGO7 together [117Allen E. al.microRNA-directed phasing plants.Cell. 121: 207-221Abstract (1356) particular (TAS). cleaves TAS end. product subsequently amplified RdR6 produce tasiRNAs. mRNAs, mediated either AGO4 localised nucleus [118El-Shami M. al.Reiterated WG/GW motifs form functionally evolutionarily ARGONAUTE-binding platforms RNAi-related components.Genes 2007; 21: 2539-2544Crossref (210) AGO5 response [119Takeda mechanism selecting guide strand duplexes among proteins.Plant 49: 493-500Crossref (274) Medicago nodulation [120Combier J.-P.P. al.MtHAP2-1 symbiotic nodule regulated microRNA169 truncatula.Genes 20: 3084-3088Crossref (288) Antirrhinum flower [72Cartolano al.A module exerts homeotic control over Petunia hybrida majus identity.Nat. 901-905Crossref fertility [121Nonomura K.-I. germ cell-specific progression premeiotic mitosis meiosis sporogenesis rice.Plant 19: 2583-2594Crossref It redundant clade (AGO6, AGO8, AGO9 [122Zheng al.Role AGO6 accumulation, silencing.EMBO 26: 1691-1701Crossref (196) uniquely shoot root meristem [123Eun al.AGO6 RNA-mediated meristems thaliana.PLoS One. 6: e25730Crossref Scholar].Table DevelopmentmiRNATargetTarget functionSpeciesRefsmiR156SPL familyPlastochron length, promoting flowering; tillering corn Zea maysArabidopsis mays15Chuck maize SBP-box factor encoded tasselsheath4 bract establishment boundaries.Development. 137: 1243-1250Crossref 17Wang J.-W. al.Dual effects miR156-targeted SPL CYP78A5/KLUH plastochron length size thaliana.Plant 1231-1243Crossref (271) 69Chuck tasselseed4 controls sex fate Tasselseed6/indeterminate spikelet1.Nat. 1517-1521Crossref (183) 84Aukerman Sakai H. Regulation flowering time APETALA2-like genes.Plant 2003; 2730-2741Crossref (1124) ScholarmiR159MYB33Anther, silique, developmentArabidopsis79Achard P. al.Modulation gibberellin-regulated microRNA.Development. 131: 3357-3365Crossref 80Allen R.S. al.Genetic analysis functional redundancy miR159 family.Proc. 104: 16371-16376Crossref ScholarmiR164CUCMeristem boundary identity, auxiliary formation, leaf serrationArabidopsis, Solanum, Oryza13Raman al.Interplay miR164, CUP-SHAPED COTYLEDON LATERAL axillary 55: 65-76Crossref 14Laufs CUC meristems.Development. 4311-4322Crossref (328) 47Nikovics balance MIR164A CUC2 margin serration Arabidopsis.Plant 2929-2945Crossref (297) 124Busch B.L. al.Shoot branching dissection tomato homologous modules.Plant 3595-3609Crossref 125Hibara al.Arabidopsis COTYLEDON3 postembryonic formation.Plant 2946-2957Crossref (155) 126Li al.Control rice.Nature. 422: 618-621Crossref ScholarmiR165/166HD-ZIP IIIMaintaining meristematic cells, adaxial leaves, growth, procambium identityArabidopsis31Liu ARGONAUTE10 modulates apical maintenance polarity repressing miR165/166 58: 27-40Crossref (84) 37Marin al.miR390, TAS3 tasiRNAs, AUXIN RESPONSE FACTOR define autoregulatory network quantitatively regulating growth.Plant 1104-1117Crossref 38Ochando I. al.Alteration radial pattern thaliana gain-of-function allele class III HD-Zip INCURVATA4.Int. 52: 953-961Crossref (14) 127Prigge al.Class homeodomain-leucine zipper members overlapping, antagonistic, distinct 17: 61-76Crossref (415) 128Williams al.Regulation miR166 g AtHD-ZIP genes.Development. 132: 3657-3668Crossref ScholarmiR167ARF6 ARF8Male developmentArabidopsis77Wu M.F. microRNA167 ARF6 ARF8 expression, female male reproduction.Development. 4211-4218Crossref ScholarmiR169CBFEnhancer C transcriptionAntirrhinum majus72Cartolano ScholarmiR172AP2 familyRepresses flowering, patterning; carpel stamen Z. mays; opening Hordeum vulgare tuberisation Solanum tuberosumArabidopsis, mays, vulgare, tuberosum10Ji 64Chen repressor APETALA2 development.Science. 303: 2022-2025Crossref (1078) 65Wollmann al.On reconciling interactions APETALA2, miR172 AGAMOUS ABC model development.Development. 3633-3642Crossref 68Jung J.-H. TOE3 represses patterning.Plant 215: 29-38Crossref (19) 70Martin al.Graft-transmissible induction potato tuberization miR172.Development. 136: 2873-2881Crossref 71Nair S.K. al.Cleistogamous barley arises suppression microRNA-guided HvAP2 107: 490-495Crossref ScholarmiR319TCP familyControl growth proliferation development; leaves petal shapeArabidopsis lycopersicum53Palatnik J.F. al.Sequence differences underlie specialization miR319.Dev. 13: 115-125Abstract (213) 54Ori N. LANCEOLATE miR319 compound-leaf tomato.Nat. 787-791Crossref ScholarmiR390TAS3tasiRNA ARF repression indirect regulationArabidopsis32Montgomery T.A. al.Specificity ARGONAUTE7–miR390 interaction dual functionality formation.Cell. 128-141Abstract 33Fahlgren FACTOR3 ta-siRNA affects timing Arabidopsis.Curr. 939-944Abstract (324) ScholarmiR393TIR1 AFBAuxin homeostasisArabidopsis78Parry al.Complex TIR1/AFB auxin receptors.Proc. 106: 22540-22545Crossref ScholarmiR394LCRMeristematic WUS downregulationArabidopsis6Knauer protodermal miR394 signal defines region competence meristem.Dev. 24: 125-132Abstract (78) ScholarmiR396GRFCell morphologyArabidopsis, Medicago, Oryza58Rodriguez R.E. miR396.Development. 103-112Crossref (214) 59Bazin al.miR396 mycorrhization legume truncatula.Plant 74: 920-934Crossref (61) 60Liu al.OsmiR396d-regulated OsGRFs organogenesis binding OsJMJ706 OsCR4.Plant 165: 160-174Crossref ScholarmiR857LACCASE7Secondary growthArabidopsis Citrus sinensis41Zhao al.MicroRNA857 vascular 169: 2539-2552PubMed ScholarTAS3ARF3/4 (only mosses) AP2-likeLeaf polarity, vasculature developmentAll land plants33Fahlgren 42Xia emergence, evolution, miR390–TAS3–ARF plants.Plant 2017; 29: 1232-1247PubMed Scholar Open table tab Classes hpRNAs miRNA. After

Language: Английский

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Vegetative Phase Change and Shoot Maturation in Plants

Current topics in developmental biology/Current Topics in Developmental Biology, Journal Year: 2013, Volume and Issue: unknown, P. 125 - 152

Published: Jan. 1, 2013

Language: Английский

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Days to heading 7 , a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice

Proceedings of the National Academy of Sciences, Journal Year: 2014, Volume and Issue: 111(46), P. 16337 - 16342

Published: Nov. 5, 2014

Success of modern agriculture relies heavily on breeding crops with maximal regional adaptability and yield potentials. A major limiting factor for crop cultivation is their flowering time, which strongly regulated by day length (photoperiod) temperature. Here we report identification characterization Days to heading 7 (DTH7), a genetic locus underlying photoperiod sensitivity grain in rice. Map-based cloning reveals that DTH7 encodes pseudo-response regulator protein its expression photoperiod. We show long days acts downstream the photoreceptor phytochrome B repress Ehd1, an up-regulator "florigen" genes (Hd3a RFT1), leading delayed flowering. Further, find haplotype combinations Grain number, plant height, date (Ghd7) DTH8 correlate well rice under different conditions. Our data provide not only macroscopic view control but also foundation cultivars better adapted target environments using rational design.

Language: Английский

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