The Flowering Repressor SVP Confers Drought Resistance in Arabidopsis by Regulating Abscisic Acid Catabolism

Wang, Zhen; Wang, Fuxing; Hong, Yechun; Yao, Juanjuan; Ren, Zhizhong; Shi, Huazhong; Zhu, Jian‐Kang

doi:10.1016/j.molp.2018.06.009

Cited by 98 publications

(71 citation statements)

References 76 publications

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“…() identified a loss‐of‐function SVP allele conferring rapid flowering for the Yangtze population. This finding also fits the local Yangtze climate because functional SVP contributes to drought resistance (Wang et al ., ).…”

Section: Discussionmentioning

confidence: 97%

On the postglacial spread of human commensal Arabidopsis thaliana: journey to the East

Hsu

Lee

2019

New Phytologist

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Summary With more sequenced genomes, our understanding of the demographic history of Arabidopsis thaliana is rapidly expanding. However, no‐one has yet compiled previous data to investigate patterns of genetic variation across Eurasia. While sub‐Saharan accessions have been reported to be the most divergent group, in the nuclear genome we found accessions from Yunnan, China to be genetically closest to the sub‐Saharan group. In chloroplast, several deeply diverged haplogroups exist only in Eurasia, and African populations have lower variation in many haplogroups that they share with the Eurasian populations. These patterns cannot be easily explained by a single out‐of‐Africa event suggested previously. For more recent demographic history, we dated the nonrelict expansion to 10 ka. In the Chinese Yangtze nonrelicts, we found clear traces of gene flow with local relicts, and genes under strong selection were enriched for traces of relict introgression, especially those related to biotic and immune responses. The results suggest the ability of nonrelicts to obtain locally adaptive alleles through admixture with relicts is important for the expansion across environmental gradients of Eurasia. Our re‐analyses provide another model for the early history as well as elucidating factors contributing to the recent demographic turnover event of this species.

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Section: Discussionmentioning

confidence: 97%

On the postglacial spread of human commensal Arabidopsis thaliana: journey to the East

Hsu

Lee

2019

New Phytologist

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“…On the basis of full length amino acid sequence conserved domain and similarity, we subdivided the 171 typical members of the MADS gene family into 5 groups (designated MIKC, Mα, Mβ, Mγ, Mδ), according to the previous classification of MADS proteins from Arabidopsis [9]. Of the 63 inferred physic nut JcMADS proteins, thirty-two were assigned to group MIKC (JcMADS03, 04, 05, 07, 12,16,17,19,20,22,24,25,26,27,28,29,31,32,37,38,42,44,46,47,49,50,52,53,54,55,56,63), thirteen to group Mα (JcMADS01, 06, 08, 11,13,14,33,35,39,43,57,58,59), four to group Mβ (JcMADS09, 48, 51, 60), six to group Mγ (JcMADS10, 15,34,36,41,62) and eight to group Mδ (JcMADS02, 18,21,23,30,40,45,…”

Section: Phylogenetic Relationships Of the Jcmads Proteinsmentioning

confidence: 99%

“…For example, CaMADS-overexpressing Arabidopsis plants show increased resistance of cold and salt stresses [21]. Loss-of-function mutations in SVP result in sensitivity to drought stress, while the SVP-overexpressing plants are more tolerant [22]. In tomato, SlMBP11-RNAi lines are less tolerance to salinity stress, but overexpressing this MADS-box gene confers salt stress tolerance [23].…”

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confidence: 99%

Genome-wide analysis of physic nut MADS-box gene family and functional characterization of the JcMADS05 gene in transgenic rice

Tang

Wang

Bao

et al. 2020

Preprint

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Background: Physic nut (Jatropha curcas), a non-edible oilseed plant, is among the most promising alternative energy sources because of its high seed oil content, rapid growth and extensive adaptability. Proteins encoded by MADS-box genes are important transcription factors involved in the regulation of plant growth, seed development and responses to abiotic stress. However, there has been no in-depth research on the MADS-box genes and their roles in physic nut. Results:In the present study, 63 MADS-box genes (JcMADSs) were identified in the physic nut genome, and classed into five groups (MIKC, Mα, Mβ, Mγ, Mδ) based on phylogenetic comparison with Arabidopsis homologs. Expression profile analysis based on RNA-seq suggested that many JcMADS genes were expressed most strongly in seeds, and seven of them responded in leaves to at least one abiotic stressor (drought and/or salinity) at one or more time points. Transient expression analysis and a transactivation assay indicated that JcMADS05 is a nucleus-localized transcriptional activator.Plants overexpressing JcMADS05 did not show altered plant growth, but the overexpressing plants did exhibit reductions in grain size, grain length, grain width, 1000-seed weight and yield per plant.Further data on the reduced grain size in JcMADS05-overexpressing plants supported the putative role of JcMADS genes in seed development. Conclusions:This study will be useful in understanding the involvement of MADS-box genes in growth and development in addition to their functions in abiotic stress resistance, and will ultimately form the basis for functional characterization and the exploitation of candidate genes for the genetic engineering of physic nut. BackgroundThe regulation of plant growth, development and stress responses is complex and is coordinated by many mechanisms. These mechanisms are under the control of a series of related genes acting through complex regulatory networks. In these processes, transcription factor (such as members of the MYB, HD-Zip, ARF, NAC, MADS-box, and ERF gene families) specifically recognize cis-regulatory elements present in the promoter regions of these genes, and regulate their expression so as to modulate a wide range of biochemical, physiological and developmental processes [1][2][3][4][5][6] (Ferrandiz All Arabidopsis MADS-box protein sequences were used as queries in a BlastP search to identify physic nut proteins. A Hidden Markov Model (HMM) search was also performed against the physic nut protein database using the MADS-domain PF03106. In total, 63 putative MADS proteins were identified in physic nut, with the presence of the MADS-box domain in each of them being confirmed by a SMART website search. These genes were named sequentially from JcMADS01 to JcMADS63 according to their chromosomal locations (Additional File 1). The 63 JcMADS genes ranged in length from 195 (JcMADS35) to 1164 (JcMADS34), thus potentially the proteins encoded would be from 64 to The research was conceived and designed by XB and YT. The experiments were performed ...

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“…Additionally, the flowering repressor SHORT VEGETATIVE PHASE (SVP) is induced by drought stress and is associated with promoter regions of ABA catabolic pathway genes CYP707A1/3 and AtBG1 . The regulatory pathway involving SVP CYP707A1/3 and AtBG1 plays a critical role in plant drought resistance (Wang, Wang, et al., ). Other researchers have found that overexpression of DWA1 significantly increases cuticular wax deposition in rice, thereby improving the drought resistance of crop varieties (Zhu & Xiong, ).…”

Section: Introductionmentioning

confidence: 99%

Identification of plant hormones and candidate hub genes regulating flag leaf senescence in wheat response to water deficit stress at the grain‐filling stage

et al. 2019

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In order to clarify the transcriptional regulatory network and physiological mechanisms governing leaf senescence response to drought stress in wheat, experiments were performed using two wheat varieties with contrasting drought tolerance: Fu287 (F287, a drought‐sensitive genotype) and Shannong20 (SN20, a drought‐resistant genotype). The latter has higher SPAD values, salicylic acid (SA), jasmonic acid (JA), zeatin (Z), zeatin riboside (ZR), and gibberellin (GA3) content as well as higher expression levels of Cu/Zn‐SOD, Mn‐SOD, Fe‐SOD, POD, CAT, and APX under various water deficit conditions. Conjoint analysis of physiological and biochemical indicators and transcriptome data by weighted gene co‐expression network analysis (WGCNA) in the present study provides a useful genomic and molecular resource for studying drought adaptation in wheat. The flag leaf senescence process was changed by altering the concentration of phytohormones. SA, JA, abscisic acid (ABA), Z, ZR, and GA3 coordinate with each other to control leaf senescence and plant adaptation under drought stress. Further, the leaf senescence process was divided into two phases: the persistence phase and the rapid loss phase. Shorter Chltotal (duration of the flag leaf being photosynthetically active), shorter Chlper (persistence phase), reduced M (inflection point cumulative temperature when senescence rate is the maximum), decreased rmax (the maximum senescence rate), larger r0 (the initial senescence rate), and increased raver (the average senescence rate) were slightly associated with low grain mass. We speculated that extending the period of the persistence phase by cultivation or chemical control measures could further increase the drought survivability and productivity of wheat.

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The Flowering Repressor SVP Confers Drought Resistance in Arabidopsis by Regulating Abscisic Acid Catabolism

Cited by 98 publications

References 76 publications

On the postglacial spread of human commensal Arabidopsis thaliana: journey to the East

On the postglacial spread of human commensal Arabidopsis thaliana: journey to the East

Genome-wide analysis of physic nut MADS-box gene family and functional characterization of the JcMADS05 gene in transgenic rice

Identification of plant hormones and candidate hub genes regulating flag leaf senescence in wheat response to water deficit stress at the grain‐filling stage

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