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Genetic dissection and origin of pleiotropic loci underlying multilevel fiber quality traits in upland cotton(Gossypium hirsutum L.) 被引量:1
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作者 Hongge Li Shurong Tang +7 位作者 Zhen Peng Guoyong Fu Yinhua Jia Shoujun Wei Baojun Chen Muhammad Shahid Iqbal Shoupu He Xiongming Du 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第10期3250-3263,共14页
Cotton fiber quality is a persistent concern that determines planting benefits and the quality of finished textile products.However,the limitations of measurement instruments have hindered the accurate evaluation of s... Cotton fiber quality is a persistent concern that determines planting benefits and the quality of finished textile products.However,the limitations of measurement instruments have hindered the accurate evaluation of some important fiber characteristics such as fiber maturity,fineness,and neps,which in turn has impeded the genetic improvement and industrial utilization of cotton fiber.Here,12 single fiber quality traits were measured using Advanced Fiber Information System(AFIS)equipment among 383 accessions of upland cotton(Gossypium hirsutum L.).In addition,eight conventional fiber quality traits were assessed by the High Volume Instrument(HVI)System.Genome-wide association study(GWAS),linkage disequilibrium(LD)block genotyping and functional identification were conducted sequentially to uncover the associated elite loci and candidate genes of fiber quality traits.As a result,the previously reported pleiotropic locus FL_D11 regulating fiber length-related traits was identified in this study.More importantly,three novel pleiotropic loci(FM_A03,FF_A05,and FN_A07)regulating fiber maturity,fineness and neps,respectively,were detected based on AFIS traits.Numerous highly promising candidate genes were screened out by integrating RNA-seq and qRT-PCR analyses,including the reported GhKRP6 for fiber length,the newly identified GhMAP8 for maturity and GhDFR for fineness.The origin and evolutionary analysis of pleiotropic loci indicated that the selection pressure on FL_D11,FM_A03 and FF_A05 increased as the breeding period approached the present and the origins of FM_A03 and FF_A05 were traced back to cotton landraces.These findings reveal the genetic basis underlying fiber quality and provide insight into the genetic improvement and textile utilization of fiber in G.hirsutum. 展开更多
关键词 upland cotton single fiber quality pleiotropic loci candidate genes locus origin
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Endothelial progenitor cells:Exploring the pleiotropic effects of statins 被引量:5
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作者 Kully Sandhu Mamas Mamas Robert Butler 《World Journal of Cardiology》 CAS 2017年第1期1-13,共13页
Statins have become a cornerstone of risk modification for ischaemic heart disease patients. A number of studies have shown that they are effective and safe. However studies have observed an early benefit in terms of ... Statins have become a cornerstone of risk modification for ischaemic heart disease patients. A number of studies have shown that they are effective and safe. However studies have observed an early benefit in terms of a reduction in recurrent infarct and or death after a myocardial infarction,prior to any significant change in lipid profile. Therefore,pleiotropic mechanisms,other than lowering lipid profile alone,must account for this effect. One such proposed pleiotropic mechanism is the ability of statins to augment both number and function of endothelial progenitor cells. The ability to augment repair and maintenance of a functioning endothelium may have profound beneficial effect on vascular repair and potentially a positive impact on clinical outcomes in patients with cardiovascular disease. The following literature review will discuss issues surrounding endothelial progenitor cell(EPC) identification,role in vascular repair,factors affecting EPC numbers,the role of statins in current medical practice and their effects on EPC number. 展开更多
关键词 STATINS Endothelial progenitor cells pleiotropic effects Ischaemic heart disease pleiotropic mechanisms
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Novel pleiotropic loci controlling panicle architecture across environments in japonica rice (Oryza sativa L.) 被引量:13
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作者 Yuan Guo Delin Hong 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2010年第8期533-544,共12页
To identify quantitative trait loci (QTLs) controlling panicle architecture in japonica rice, a genetic map was constructed based on simple sequence repeat (SSR) markers and 254 recombinant inbred lines (RILs) d... To identify quantitative trait loci (QTLs) controlling panicle architecture in japonica rice, a genetic map was constructed based on simple sequence repeat (SSR) markers and 254 recombinant inbred lines (RILs) derived from a cross between cultivars Xiushui 79 and C Ban. Seven panicle traits were investigated under three environments. Single marker analysis indicated that a total of 27 SSR markers were highly associated with panicle traits in all the three environments. Percentage of phenotypic variation explained by single locus varied from 2% to 35%. Based on the mixed linear model, a total of 40 additive QTLs for seven panicle traits were detected by composite interval mapping, explaining 1.2%--35% ofphenotypic variation. Among the 9 QTLs with more than 10% of explained phenotypic variation, two QTLs were for the number of primary branches per panicle (NPB), two for panicle length (PL), two for spikelet density (SD), one for the number of secondary branches per panicle (NSB), one for secondary branch distribution density (SBD), and one for the num- ber of spikelets per panicle (NS), respectively, qPLSD-9-1 and qPLSD-9-2 were novel pleiotropic loci, showing effects on PL and SD simultaneously, qPLSD-9-1 explained 34.7% of the phenotypic variation for PL and 25.4% of the phenotypic variation for SD, respec- tively, qPLSD-9-2 explained 34.9% and 24.4% of the phenotypic variation for PL and SD, respectively. The C Bao alleles at the both QTLs showed positive effects on PL, and the Xiushui 79 alleles at the both QTLs showed positive effects on SD. Genetic variation of panicle traits are mainly attributed to additive effects. QTLx environment interactions were not significant for additive QTLs and additive x additive QTL pairs. 展开更多
关键词 japonica rice simple sequence repeat (SSR) panicle traits quantitative trait locus (QTL) pleiotropic locus
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Natural variation in the SVP contributes to the pleiotropic adaption of Arabidopsis thaliana across contrasted habitats 被引量:5
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作者 Xiang Guo Ruyun Liang +7 位作者 Shangling Lou Jing Hou Liyang Chen Xin Liang Xiaoqin Feng Yingjun Yao Jianquan Liu Huanhuan Liu 《Journal of Genetics and Genomics》 SCIE CSCD 2023年第12期993-1003,共11页
Coordinated plant adaptation involves the interplay of multiple traits driven by habitat-specific selection pressures. Pleiotropic effects, wherein genetic variants of a single gene control multiple traits, can expedi... Coordinated plant adaptation involves the interplay of multiple traits driven by habitat-specific selection pressures. Pleiotropic effects, wherein genetic variants of a single gene control multiple traits, can expedite such adaptations. Until present, only a limited number of genes have been reported to exhibit pleiotropy. Here, we create a recombinant inbred line (RIL) population derived from two Arabidopsis thaliana (A. thaliana) ecotypes originating from divergent habitats. Using this RIL population, we identify an allelic variation in a MADS-box transcription factor, SHORT VEGETATIVE PHASE (SVP), which exerts a pleiotropic effect on leaf size and drought-versus-humidity tolerance. Further investigation reveals that a natural null variant of the SVP protein disrupts its normal regulatory interactions with target genes, including GRF3, CYP707A1/3, and AtBG1, leading to increased leaf size, enhanced tolerance to humid conditions, and changes in flowering time of humid conditions in A. thaliana. Remarkably, polymorphic variations in this gene have been traced back to early A. thaliana populations, providing a genetic foundation and plasticity for subsequent colonization of diverse habitats by influencing multiple traits. These findings advance our understanding of how plants rapidly adapt to changing environments by virtue of the pleiotropic effects of individual genes on multiple trait alterations. 展开更多
关键词 Arabidopsis Evolution Leaf size Drought tolerance SVP pleiotropic
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Pleiotropic effects of bombesin and neurotensin on intestinal mucosa: Not just trefoil peptides 被引量:4
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作者 Stelios F Assimakopoulos Chrisoula D Scopa +1 位作者 Vassiliki N Nikolopoulou Constantine E Vagianos 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第22期3602-3603,共2页
Bombesin and neurotensin are neuropeptides which exert a wide spectrum of biological actions on gastrointestinal tissues influencing intestinal growth and adaptation, intestinal motility, blood flow, secretion, nutrie... Bombesin and neurotensin are neuropeptides which exert a wide spectrum of biological actions on gastrointestinal tissues influencing intestinal growth and adaptation, intestinal motility, blood flow, secretion, nutrient absorption and immune response. Based mainly on their well-established potent enterotrophic effect, numerous experimental studies investigated their potential positive effect on the atrophic or injured intestinal mucosa. These peptides proved to be effective mucosa-healing factors, but the potential molecular and cellular mechanisms for this action remained unresolved. In a recently published study (World J Gastroenterol 2008; 14(8): 1222-1230), it was shown that their protective effect on the intestine in experimentally induced inflammatory bowel disease was related to anti-inflammatory, antioxidant and antiapoptotic actions. These results are in close agreement with our previous studies on jaundiced and hepatectomized rats that showed a regulatory effect of bombesin and neurotensin on critical cellular processes such as enterocyte' proliferation and death, oxidative stress and redox equilibrium, tight junctions' formation and function, and inflammatory response. The pleiotropic effects of bombesin and neurotensin on diverse types of intestinal injury may justify their consideration for clinical trials. 展开更多
关键词 BOMBESIN NEUROTENSIN pleiotropic NEUROPEPTIDES Regulatory peptides
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Complementary research in mammals and fish indicates MMP-2 as a pleiotropic contributor to optic nerve regeneration 被引量:3
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作者 Kim Lemmens Inge Van Hove Lieve Moons 《Neural Regeneration Research》 SCIE CAS CSCD 2016年第5期740-742,共3页
Matrix metalloproteinases(MMPs)are members of the metzincin superfamily named after the zinc ion and the conserved methionine residue at the active site.In addition to their role in extracellular matrix(ECM)remode... Matrix metalloproteinases(MMPs)are members of the metzincin superfamily named after the zinc ion and the conserved methionine residue at the active site.In addition to their role in extracellular matrix(ECM)remodeling,these proteinases(in)activate many signaling molecules such as growth factors. 展开更多
关键词 MMP Complementary research in mammals and fish indicates MMP-2 as a pleiotropic contributor to optic nerve regeneration MMPs
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The pleiotropic effects of tissue plasminogen activator in the brain:implications for stroke recovery 被引量:2
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作者 Julia A.Grummisch Nafisa M.Jadavji Patrice D.Smith 《Neural Regeneration Research》 SCIE CAS CSCD 2016年第9期1401-1402,共2页
Tissue plasminogen activator (tPA) use in the treatment of isch- emic stroke: tPA is a serine protease that catalyzes the breakdown of blood dots. Because of its thrombolytic properties, tPA is used to treat specif... Tissue plasminogen activator (tPA) use in the treatment of isch- emic stroke: tPA is a serine protease that catalyzes the breakdown of blood dots. Because of its thrombolytic properties, tPA is used to treat specific types of stroke, including ischemia, but is contra- indicated for treatment of hemorrhagic stroke or head trauma. Although a life saving and powerful 'dot buster', tPA has a short therapeutic window. When administered outside of this prescribed timeframe, research suggests that tPA can produce neurotoxic ef- fects in the brain, due in part to activation of several signalling pro- cesses associated with cell apoptosis, degradation of the extracel- lular matrix, and increase in the permeability of the neurovascular unit (Yepes et al., 2009). Concerted research has been dedicated to- ward understanding the mechanisms mediating the impact of tPA on the brain, using both in vivo and in vitro animal models. 展开更多
关键词 The pleiotropic effects of tissue plasminogen activator in the brain PA
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A Pleiotropic Drug Resistance Family Protein Gene Is Required for Rice Growth, Seed Development and Zinc Homeostasis
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作者 LI Chao LI He +1 位作者 ZHANG Xianduo YANG Zhimin 《Rice science》 SCIE CSCD 2023年第2期127-137,I0035-I0038,共15页
Zinc(Zn) is an essential mineral element for plant growth and development. Zn deficiency in crops frequently occurs in many types of soils. It is therefore crucial to identify genetic resources linking Zn acquisition ... Zinc(Zn) is an essential mineral element for plant growth and development. Zn deficiency in crops frequently occurs in many types of soils. It is therefore crucial to identify genetic resources linking Zn acquisition traits and development of crops with improved Zn-use efficiency for sustainable crop production. In this study, we functionally identified a rice uncharacterized ABCG(ATP-binding cassette G-subfamily) gene encoding a PDR20(pleiotropic drug resistance 20) metal transporter for mediation of rice growth, seed development and Zn accumulation. OsPDR20 was localized to the plasma membrane, but it was not transcriptionally induced under Zn deficiency, rather was sufficiently up-regulated under high level of Zn stress. Yeast(Saccharomyces cerevisiae) transformed with OsPDR20 displayed a relatively lower Zn accumulation with attenuated cellular growth, suggesting that OsPDR20 had an activity for Zn transport. Knocking-down OsPDR20 by RNA interference(RNAi) compromised rice growth with shorter plant height and decreased biomass in rice plantlets grown under hydroponic media. Zn concentration in the roots of OsPDR20 knocked-down rice lines declined under Zn deficiency, while they remained unchanged compared with the wild type under normal Zn supply. A rice lifelong field trial demonstrated that OsPDR20 mutation impaired the capacity of seed development, with shortened panicle and seed length, compromised spikelet fertility, and reduced grain number per plant or grain weight per unit area. Interestingly, OsPDR20 mutation elevated the accumulation of Zn in husk and brown rice over the wild type. Overall, this study pointed out that OsPDR20 is fundamentally required for rice growth and seed development through Zn transport and homeostasis. 展开更多
关键词 OsPDR20 zinc transport RICE seed development ABCG53 pleiotropic drug resistance
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AMPylation Signaling Participates in Diverse Processes with Pleiotropic Actions
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作者 YAN Jia Long JIANG Jin Yong +1 位作者 LUO Xu Ling CHEN Lin Xi 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2019年第5期389-392,共4页
Truttmann MC et al.[1] recently reported that AMPylation of heat shock protein 70 (HSP70) family of chaperones participates in altering the aggregation properties and maintaining protein homeostasis (proteostasis), th... Truttmann MC et al.[1] recently reported that AMPylation of heat shock protein 70 (HSP70) family of chaperones participates in altering the aggregation properties and maintaining protein homeostasis (proteostasis), thereby playing a vital role in the development of neurodegenerative diseases (NDs). NDs are commonly manifested by protein aggregates, which exert harmful effects on proteostasis. Interestingly, it has been observed that AMPylation of heat shock proteins (HSPs) can maintain proteostasis by inhibiting the formation of protein aggregates. As previous studies only indicate that HSPs could regulate proteostasis, such a novel discovery further demonstrates the involvement of HSP70 AMPylation in the regulation of protein aggregation and the maintenance of proteostasis. Therefore, AMPylation can be considered to possess a therapeutic potential to target certain physiological processes related to proteostasis, such as age-related diseases. 展开更多
关键词 AMPylation SIGNALING pleiotropic
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Theory of pleiotropic action of biologically active compounds and medicines—Basic principles and practical application
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作者 N. A. Bizunok 《Open Journal of Clinical Diagnostics》 2013年第3期94-104,共11页
This article represents the main positions of the theory of pleiotropic action of biologically active compounds (BACs) and medicines, which has been designed by the author based on her own experimental researches. The... This article represents the main positions of the theory of pleiotropic action of biologically active compounds (BACs) and medicines, which has been designed by the author based on her own experimental researches. The term “pleiotropy” means the ability of the BACs and medicines to implement more than one mechanism of action resulting in the specific biological (pharmacological) effect. The interaction of these mechanisms forms a distinct pattern of biological response (pleiotropic pattern), which reflects the change in his character with the increased dose (concentration)-dependent efficacy of BACs and medicines. The article consists of description of different pleiotropic patterns established in experiments on the model of reactive oxygen species (ROS) generation by macrophages dependent on activity of specialized enzyme called Nox2-NAD(P)H oxidase (Nox2, EC 1.6.3.1). Moreover, it consists of explanation of pharmacodynamic nature of pleiotropic patterns by means of application Chou-Talalay median effect equalization and combination index (CI) theory. The novel theory explains unsolved until now universal aspects of activity BACs and medicines, such as slope angles of “dose-effect” dependences in the conditions relevant in vivo, and it is of fundamental interest. However, it has applications in experimental pharmacology, as it allows defining the choice of the individual compounds and combinations, modulating the trust effect selectively and efficiently. This knowledge opens up new approaches to medicines discovery and evaluation, their rational dosing and combining. 展开更多
关键词 Reactive Oxygen Species (ROS) Nox2-NAD(P)H Oxidase (Nox2) Slope Angles of DOSE-EFFECT DEPENDENCES PLEIOTROPY pleiotropic Patterns Polytropism Pharmacological Affect Nature MEDICINES Combinations Novel THEORY of Biologically Active Compounds (BACs) and MEDICINES Action
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Pleiotropic prodrugs for both symptomatic and disease-modifying treatment of Alzheimer’s disease
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作者 Anze Meden Neza Znidaršic +11 位作者 Damijan Knez Yuanyuan Wang Ziwei Xu Huajing Yang Weiting Zhang Anja Pišlar Andrej Perdih Simona Kranjc Brezar Neza Grgurevic Stane Pajk Haopeng Sun Stanislav Gobec 《Acta Pharmaceutica Sinica B》 2025年第9期4807-4828,共22页
The inherent complexity of Alzheimer’s disease(AD)and failed clinical trials have spiked the interest in multifunctional ligands that target at least two key disease-associated macromolecules in AD pathology.Here we ... The inherent complexity of Alzheimer’s disease(AD)and failed clinical trials have spiked the interest in multifunctional ligands that target at least two key disease-associated macromolecules in AD pathology.Here we present a focused series of pleiotropic N-carbamoylazole prodrugs with dual mechanism of action.Pseudo-irreversible inhibition of the first therapeutic target,human butyrylcholinesterase(hBChE),enhances cholinergic transmission,and thereby provides symptomatic treatment,same as the standard therapeutics in use for AD.Simultaneously,this step also functions as a metabolic activation that liberates a nanomolar selectiveα_(2)-adrenergic antagonist atipamezole,which blocks pathological amyloidß(Aß)-induced and noradrenaline-dependent activation of GSK3ßthat ultimately leads to hyperphosphorylation of tau,thus achieving a disease-modifying effect.Lead compound 8 demonstrated long-term pseudo-irreversible hBChE inhibition,metabolic activation in human plasma,blood-brain barrier permeability,and p.o.bioavailability in mice.Multi-day in vivo treatment with 8 in an Aß-induced AD murine model revealed a significant alleviation of cognitive deficit that was comparable to rivastigmine,the current drug of choice for AD therapy.Furthermore,decreased GSK3ßactivation and lowered tau phosphorylation were observed in APP/PS1 mice.This surpasses the symptomatic-only treatment with cholinesterase inhibitors,as it directly blocks an essential pathological cascade in AD.Therefore,these multifunctionalα_(2)-adrenergic antagonists-butyrylcholinesterase inhibitors,exemplified by lead compound 8,present an innovative,small molecule-based,disease-modifying approach to treatment of AD. 展开更多
关键词 pleiotropic prodrug Alzheimer’s disease BUTYRYLCHOLINESTERASE α_(2A)adrenoreceptor Disease-modifying treatment N-Heterocyclic ureas Carbamates Neurodegenerative diseases
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The coordinated interaction or regulation between floral pigments and volatile organic compounds
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作者 Yueqing Li Tingting Bao +6 位作者 Jia Zhang Hongjie Li Xiaotong Shan Huijun Yan Shadrack Kimani Liangsheng Zhang Xiang Gao 《Horticultural Plant Journal》 2025年第2期463-485,共23页
Floral color and scent are crucial for plant-environment interactions,especially in reproduction by attracting pollinators for fertilization.They also have wide applications in cosmetic,pharmaceutical,and nutraceutica... Floral color and scent are crucial for plant-environment interactions,especially in reproduction by attracting pollinators for fertilization.They also have wide applications in cosmetic,pharmaceutical,and nutraceutical industries.Plant pigments are typically classified as chlorophylls,flavonoids,carotenoids,and betalains,while volatile organic compounds(VOCs)are grouped as terpenes,phenylpropanoids/benzenoids,and fatty acid derivatives.Significant progresses have been made in understanding the biosynthesis and regulation of these floral pigments and VOCs.Despite differences in their biosynthetic pathways,floral pigments and VOCs are biochemically connected and exhibit synergistic interactions during flower development and in response to biotic and abiotic stresses,suggesting the existence of pleiotropic regulators or complex mechanisms co-regulating their biosynthesis.In this review,we summarize and outline the metabolite pathways mainly integrating flavonoids,carotenoids,terpenes,and phenylpropanoids/benzenoids.We also provide a series of scenarios illustrating the coordinated regulation of floral color and scent.Finally,we suggest areas for future research.We hope this review will spark interest in this research direction and stimulate further studies. 展开更多
关键词 Color and scent Co-regulation pleiotropic regulators Promoter analysis Specialized metabolites
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Lysophosphatidic acid signaling:Transmembrane modulators in the central nervous system
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作者 Alexandra Polyzou Alexandros Κ.Tsiouris +2 位作者 Charalampos Labrakakis Britta J.Eickholt George Leondaritis 《Neural Regeneration Research》 2026年第3期1104-1105,共2页
Lysophosphatidic acid(LPA)is a pleiotropic lipid agonist essential for functions of the central nervous system(CNS).It is abundant in the developing and adult brain while its concentration in biological fluids,includi... Lysophosphatidic acid(LPA)is a pleiotropic lipid agonist essential for functions of the central nervous system(CNS).It is abundant in the developing and adult brain while its concentration in biological fluids,including cerebrospinal fluid,varies significantly(Figure 1Α;Yung et al.,2014).LPA actually corresponds to a variety of lipid species that include different stereoisomers with either saturated or unsaturated fatty acids bearing likely differentiated biological activities(Figure 1Α;Yung et al.,2014;Hernández-Araiza et al.,2018). 展开更多
关键词 transmembrane modulators cerebrospinal fluidvaries variety lipid species lysophosphatidic acid biological fluidsincluding lysophosphatidic acid lpa saturated unsaturated fatty acids pleiotropic lipid agonist
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QTL mapping for branch-and leaf-related traits with a highdensity SNP genetic map in litchi(Litchi chinensis Sonn.)
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作者 Wei Hu Fang Li +6 位作者 Huanling Li Lei Zhang Rupeng Cai Qiying Lin Yao Li Xiaoyun Qin Jiabao Wang 《Horticultural Plant Journal》 2025年第4期1541-1550,共10页
Litchi(Litchi chinensis Sonn.),an important fruit tree in tropical and subtropical regions,possesses substantial economic value.The branchand leaf-related traits of litchi have a significant impact on litchi yield and... Litchi(Litchi chinensis Sonn.),an important fruit tree in tropical and subtropical regions,possesses substantial economic value.The branchand leaf-related traits of litchi have a significant impact on litchi yield and quality.However,due to limitations such as the density of the genetic linkage map,there have been few studies on mapping QTLs of branch-and leaf-related traits.In this study,a high-density genetic map was constructed by next-generation sequencing(NGS)using an F_(1) population of 264 progenies,derived from the cross between the cultivars‘Sanyuehong'and‘Ziniangxi'.A total of 2574 high-quality BINs(binomial intervals)were obtained,and a genetic linkage map was constructed with a total length of 1753.3 cM and an average marker distance of 0.68 cM.With the genetic map and the phenotyping of single leaf length(SLL),single leaf width(SLW),leaf shape index(LSI),weight of specific leaf(WSL),petiole length(PL)and compound leaf length(CLL)measured in three seasons,11,9,9,10,9 and 12 QTLs were detected for SLL,SLW,WSL,LSI,PL and CLL traits,respectively.Among these QTLs,five QTLs were consistently detected in two seasons and 12 pleiotropic QTLs were identified for at least two traits.These findings will provide new insights for the gene cloning for branch-and leaf-related traits as well as marker-assisted selection(MAS). 展开更多
关键词 LITCHI Branch-and leaf-related traits High-density genetic map pleiotropic QTLs
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Validation and Characterization of Ghd7.1, a Major Quantitative Trait Locus with Pleiotropic Effects on Spikelets per Panicle, Plant Height, and Heading Date in Rice (Oryza sativa L.) 被引量:25
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作者 Touming Liu Haiyang Liu +1 位作者 Huang Zhang Yongzhong Xing 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2013年第10期917-927,共11页
A quantitative trait locus (QTL) that affects heading date (HD) and the number of spikelets per panicle (SPP) was previously identified in a small region on chromosome 7 in rice (Oryza sativa L.). In order to ... A quantitative trait locus (QTL) that affects heading date (HD) and the number of spikelets per panicle (SPP) was previously identified in a small region on chromosome 7 in rice (Oryza sativa L.). In order to further characterize the QTL region, near isogenic lines (NILs) were quickly obtained by self-crossing recombinant inbred line 189, which is heterozygous in the vicinity of the target region. The pleiotropic effects of QTL Ghd7.1 on plant height (PH), SPP, and HD, were validated using an NIL-F2 population. Ghd7.1 explained 50.2%, 45.3%, and 76.9% of phenotypic variation in PH, SPP, and HD, respectively. Ghd7.1 was precisely mapped to a 357-kb region on the basis of analysis of the progeny of the NIL-F2 population. Day-length treatment confirmed that Ghd7.1 is sensitive to photoperiod, with long days delaying heading up to 12.5 d. Identification of panicle initiation and development for the pair of NILs showed that Ghd7.1 elongated the photoperiod-sensitive phase more than 10 d, but did not change the basic vegetative phase and the reproductive growth phase. These findings indicated that Ghd7.1 regulates SPP by controlling the rate of panicle differentiation rather than the duration of panicle development. 展开更多
关键词 Day-length treatment pleiotropic effects photoperiod sensitive phase rice.
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Plant pleiotropic drug resistance transporters:Transport mechanism, gene expression,and function 被引量:16
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作者 Mohammed Nuruzzaman Ru Zhang +1 位作者 Hong-Zhe Cao Zhi-Yong Luo 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2014年第8期729-740,共12页
Pleiotropic drug resistance (PDR) transporters belonging to the ABCG subfamily of ATP-binding cassette (ABC) transporters are identified only in fungi and plants. Members of this family are expressed in plants in ... Pleiotropic drug resistance (PDR) transporters belonging to the ABCG subfamily of ATP-binding cassette (ABC) transporters are identified only in fungi and plants. Members of this family are expressed in plants in response to various biotic and abiotic stresses and transport a diverse array of moleculesacross membranes, Although their detailed transport mechanism is largely unknown, they play important roles in detoxification processes, preventing water loss, transport of phytohormones, and secondary metabolites. This review provides insights into transport mechanisms of plant PDR transporters, their expression profiles, and multitude functions in plants. 展开更多
关键词 ABC transporters expression pattern plant defense pleiotropic drug resistance transport mechanism
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The domestication-associated L1 gene encodes a eucomic acid synthase pleiotropically modulating pod pigmentation and shattering in soybean 被引量:6
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作者 Xiangguang Lyu Ying-hui Li +7 位作者 Yanfei Li Delin Li Chao Han Huilong Hong Yu Tian Lida Han Bin Liu Li-juan Qiu 《Molecular Plant》 SCIE CSCD 2023年第7期1178-1191,共14页
Pod coloration is a domestication-related trait in soybean,with modern cultivars typically displaying brown or tan pods,while their wild relative,Glycine soja,possesses black pods.However,the factors regulating this c... Pod coloration is a domestication-related trait in soybean,with modern cultivars typically displaying brown or tan pods,while their wild relative,Glycine soja,possesses black pods.However,the factors regulating this color variation remain unknown.In this study,we cloned and characterized L1,the classical locus responsible for black pods in soybean.By using map-based cloning and genetic analyses,we identified the causal gene of L1 and revealed that it encodes a hydroxymethylglutaryl-coenzyme A(CoA)lyase-like(HMGL-like)domain protein.Biochemical assays showed that L1 functions as a eucomic acid synthase and facilitates the synthesis of eucomic acid and piscidic acid,both of which contribute to coloration of pods and seed coats in soybean.Interestingly,we found that L1 plants are more prone to pod shattering under light exposure than l1 null mutants because dark pigmentation increases photothermal efficiency.Hence,pleiotropic effects of L1 on pod color and shattering,as well as seed pigmentation,likely contributed to the preference forl1 alleles during soybean domestication and improvement.Collectively,our study provides new insights into the mechanism of pod coloration and identifies a new target for future de novo domestication oflegume crops. 展开更多
关键词 SOYBEAN DOMESTICATION pod pigmentation pod shattering pleiotropic effects
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Unraveling the regulatory network of flower coloration in soybean:Insights into roles of GmMYBA3 and GmMYBR1
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作者 Ruifang Gao Yueqing Li +8 位作者 Yanan Wang Xiaotong Shan Siqi Yang Ye Zhang Saiyu Ma Chunbao Zhang Jianchun Qin Li Wang Xiang Gao 《The Crop Journal》 SCIE CSCD 2024年第2期443-455,共13页
Anthocyanins play crucial roles in pollen protection and pollinator attraction in flowering plants.However,the mechanisms underlying flower color determination and whether floral anthocyanin regulators participate in ... Anthocyanins play crucial roles in pollen protection and pollinator attraction in flowering plants.However,the mechanisms underlying flower color determination and whether floral anthocyanin regulators participate in other processes remain largely unresolved in soybeans(Glycine max).In this study,we investigated the genetic components and mechanisms governing anthocyanin biosynthesis in soybean flowers.Molecular and genetic studies have characterized two antagonistic regulators,the positive activator GmMYBA3 and the negative repressor GmMYBR1,that modulate the gene expression of anthocyanin biosynthesis in soybean flowers.Further findings revealed a regulatory interplay between GmMYBA3 and GmMYBR1 bridged by GmTT8a,highlighting the complexity of anthocyanin regulation in different soybean organs.Exploration of additional soybean cultivars demonstrated the universality of GmMYBA3 and GmMYBR1 in regulating floral anthocyanin biosynthesis-related genes,with GmF3’5’H identified as a crucial determinant of white flower color.This study provides a molecular mechanism underlying soybean flower color determination,paving the way for the molecular modification of soybean flowers to probably enhance their resistance to abiotic stresses and attractiveness to pollinators. 展开更多
关键词 ANTHOCYANIN Flower color determination MBW complex MYB repressor pleiotropic regulator
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Potential therapeutic effects of pigment epithelium-derived factor for treatment of diabetic retinopathy 被引量:10
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作者 Xiao Liu Hui-Hui Chen Li-Wei Zhang 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2013年第2期221-227,共7页
Diabetic retinopathy (DR), a major micro-vascular complication of diabetes, has emerged as a leading cause of visual impairment and blindness among working adults in the worldwide. The pathobiology of DR involves mult... Diabetic retinopathy (DR), a major micro-vascular complication of diabetes, has emerged as a leading cause of visual impairment and blindness among working adults in the worldwide. The pathobiology of DR involves multiple molecular pathways and is characterized chronic neurovascular degeneration. Current approaches to prevent or to treat DR are still far from satisfactory. Therefore, it is important to develop new therapeutic strategies for the prevention and treatment to DR. Pigment epithelium-derived factor (PEDF), a 50-kDa secreted glycoprotein, has been described as a multi-functional protein. Some emerging evidences indicate that PEDF are able to target multiple pathways exerting neurotropic, neuroprotective, anti-angiogenic, antivasopermeability, anti-inflammation, anti-thrombogenic and anti-oxidative effects in DR. In this review, we addressed the functions of PEDF in different pathways, which could lead to potential therapeutics on the treatment to DR. 展开更多
关键词 diabetic retinopathy pigment epithelium derived factor molecular therapeutics pleiotropic functions
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Genome wide association study identifies SNPs associated with fatty acid composition in Chinese Wagyu cattle 被引量:5
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作者 Zezhao Wang Bo Zhu +10 位作者 Hong Niu Wengang Zhang Ling Xu Lei Xu Yan Chen Lupei Zhang Xue Gao Huijiang Gao Shengli Zhang Lingyang Xu Junya Li 《Journal of Animal Science and Biotechnology》 SCIE CAS CSCD 2019年第2期353-364,共12页
Background: Fatty acids are important traits that affect meat quality and nutritive values in beef cattle. Detection of genetic variants for fatty acid composition can help to elucidate the genetic mechanism underpinn... Background: Fatty acids are important traits that affect meat quality and nutritive values in beef cattle. Detection of genetic variants for fatty acid composition can help to elucidate the genetic mechanism underpinning these traits and promote the improvement of fatty acid profiles. In this study, we performed a genome-wide association study(GWAS) on fatty acid composition using high-density single nucleotide polymorphism(SNP) arrays in Chinese Wagyu cattle.Results: In total, we detected 15 and 8 significant genome-wide SNPs for individual fatty acids and fatty acid groups in Chinese Wagyu cattle, respectively. Also, we identified nine candidate genes based on 100 kb regions around associated SNPs. Four SNPs significantly associated with C14:1 cis-9 were embedded with stearoyl-CoA desaturase(SCD), while three SNPs in total were identified for C22:6 n-3 within Phospholipid scramblase family member 5(PLSCR5), Cytoplasmic linker associated protein 1(CLASP1), and Chymosin(CYM). Notably, we found the top candidate SNP within SCD can explain ~ 7.37% of phenotypic variance for C14:1 cis-9.Moreover, we detected several blocks with high LD in the 100 kb region around SCD. In addition, we found three significant SNPs within a 100 kb region showing pleiotropic effects related to multiple FA groups(PUFA,n-6, and PUFA/SFA), which contains BAI1 associated protein 2 like 2(BAIAP2 L2), MAF bZIP transcription factor F(MAFF),and transmembrane protein 184 B(TMEM184 B).Conclusions: Our study identified several significant SNPs and candidate genes for individual fatty acids and fatty acid groups in Chinese Wagyu cattle, and these findings will further assist the design of breeding programs for meat quality in cattle. 展开更多
关键词 CHINESE WAGYU CATTLE FATTY acids GWAS MEAT quality pleiotropic effects
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