简介:MITEs(Miniatureinverted-repeattransposableelements)arereminiscenceofnon-autonomousDNA(classⅡ)elements,whicharedistinguishedfromothertranspos-ableelementsbytheirsmallsize,shortterminalinvertedrepeats(TIRs),highcopynumbers,genicpreference,andDNAsequenceidentityamongfamilymembers.Al-thoughMITEswerefirstdiscoveredinplantsandstillactivelyreshapinggenomes,theyhavebeenisolatedfromawiderangeofeukaryoticorganisms.MITEscanbedividedintoTourist-like,Stowaway-like,andpogo-likegroups,accordingtosimilaritiesoftheirTIRsandTSDs(targetsiteduplications).Indespiteofsev-eralmodelstoexplaintheoriginandamplificationofMITEs,theirmechanismsoftranspositionandaccumulationineukaryoticgenomesremainpoorlyunderstoodowingtoinsufficientexperimentaldata.TheuniquepropertiesofMITEshavebeenexploitedasusefulgenetictoolsforplantgenomeanalysis.UtilizationofMITEsaseffectiveandinformativegenomicmarkersandpotentialapplicationofMITEsinplantssystematic,phylogenetic,andgeneticstudiesarediscussed.
简介:RE-containingfertilizer,developedbytheStateAgriculturalAssociationincollaborationwitharesearchgroupofBeijingNon-FerrousMetalResearchIns-titute,hasbornefruitsinChina’sagri-culture.Theeffectivenessofthisfer-tilizer,calledNongle,isstriking.In1986,farmersinSouthChina’sGuangxiZhuangAutonomousRegionused
简介:MolecularPlantBreeding(online,ISSN1923-8266)isanopenaccessandpeerreviewedjournal.Itpublishesoriginalresearchpapersinvolvinginthetransgenicbreedingandmarkerassistedbreedinginplants,particularintheareasoftransgene,moleculargenetics,cropQTLanalysis,germplasmgeneticdiversity,andadvancedbreedingtechnologies.Theprimarycriteriaforpublicationaretheinterestingsthatneednotonlytomeet
简介:Thestrongestsignalofplantpromoterissearchedwiththemodelofsinglemotifwithtwotypes.ItturnsoutthatthedominanttypeistheTATA-box.TheothertypemaybecalledTATA-lesssignal,andmaybeusedingenefindersforpromoterrecognition.WhiletheTATAsignalsareverycloseforthemonocotandthedicot,theirTATA-lesssignalsaresignificantlydifferent.Ageneralandflexiblemulti-motifmodelisalsoproposedforpromoteranalysisbasedondynamicprogramming.ByextendingtheGibbssamplertothedynamicprogrammingandintroducingtemperature,anefficientalgorithmisdevelopedforsearchingsignalsinplantpromoters.
简介:1.0IntroductionWaigaoqiaoPowerPlantisoneofimportantinfrastructureofShanghaiPudongNewArea.Thecapacityofthefirstphaseprojectisof1200MW,withfour(4)domesticmadeandtechnologyintroduced300MWcoal-firedunits.ThisprojectwasapprovedbyStatePlanningCommissioninApril1990,andalsoassignedbytheMinistryofEnergyandMinistryofMachineryand
简介:MicroRNAs(miRNAs)是他们在植物和动物的目标基因的重要post-transcriptional管理者。miRNAs通常长是20-24核苷酸。尽管有他们的不平常地小的尺寸,miRNA基因家庭的进化历史似乎类似于编码theirprotein对应物。与在动物染色体的小却丰富的miRNA家庭相对照,植物有少数但是更大的miRNA基因家庭。植物miRNA基因家庭的成员经常是高度类似的,建议经由双人脚踏车基因复制和部分复制事件的最近的扩大。尽管许多miRNA基因越过植物种类被保存,一样的基因家庭在不同种类在尺寸和genomic组织显著地变化,它可以在目标基因规定引起剂量效果和空间、时间的差别。在这评论,我们在理解植物miRNA基因家庭的进化总结当前的进步。
简介:Heterosisistheuniversalphenomenainnature,anditsformationmechanismhasbeenthefocusofresearch.Onthisbasis,anumberoftheoreticalhypotheseshavebeenproposedforthereasonofheterosis,suchasthedominancehypothesis,epistaticeffect,generegulationnetworks,etc.Forthepastyears,manyresearchershaveattemptedtoelaboratethemechanismofheterosisatphysiological&biochemicallevelandmolecularlevel.Theresultsshowedheterosisplantshaveastrongerphotosyntheticcapacity,relativelywell-developedtissuesandgreateradaptionandbufferingabilitytoexternalenvironment.Theheterosisisoftenmorepronouncedinrelativelylowlight,lowtemperatureandlowCO2concentration.Inaddition,geneticdistance,differencesingeneexpressionandDNAmethylationareallcloselyrelatedwithheterosis.Thisstudyreviewedresearchresultsofforestryandagriculture,anddiscussedthefutureresearchdirectionofthisfield.
简介:ThankstotheeffortsjointlymadebytheChinesebuyerandtheTechnopromexportasSeller,contractsonSuizhongandYiminpowerplantprojects,identifiedascounter-tradeprojectsintheSino-SovietLongTermTradeAgreement(1986-1990),weresignedonDecember27and30,1990re-spectively.
简介:TheBeijing-basedSyntheticRubberPlantoftheYanhuaPetrochemicalCo.Ltd.isChina’slargestenterpriseproducingsyntheticrubber.Bu...
简介:Inthispapertheeffectsofthecondenserdesignparameters(suchasturbineinletcondition.turbinepowerandcondenserpressure)onheattransferarea,coolingwaterflow-rate.condensercostandspecificenergygenerationcostarestudiedforsurfacetypecondenser.Theresultsaregiveninthetextandalsoshownasdiagrams.
简介:LocatedinthesouthofChina,LiyangRareEarthGeneralPlantisboundedonNanjing,ShanghaiandHangzhouandenjoysthecon-venienceinbothlandandwatertransportation.Theplantstarteditsproduc-tioninJune,1987andwasenlarg-editsannualproductioncapacityto800tonsofion-adsorptionrareearthmineralsin1989.It
简介:Thispaperstudiesthemodellingandsimulationforallformsofhcaters.Theassumptionofformerdaysthatthetemperatureofcondensationisthesaturationtemperaturecorrespondingtoheaterpressureinsteamsideisnolongerused.Onthebasisofthelawsofconservationofmass,energyandmomentum,themathematicalmodelofheatersisestablishedandthesimulationcalculationofa125MWunitismade.Thercsultshowsthatthemodelisapplicableforvariouskindsofsteam-waterheaterinpowerplant.
简介:Thispaperpresentstheworkingprocedureofpowergeneratingenterprisesandexplainstheframeworkofane-power-plantanditsinformationsystem,putsforwardtheguidelineandthegeneralgoalofinformatizationconstructionwhilefocusingontheconstructiongoalintheappliedsystem,theimplementingstrategy,theprojectmanagementandorganization.
简介:RELEASEDCONVICTSPLANT“REPENTANCEFORESTS”¥//OneverytreeplantingdayinHeilongjiangprovince,theHulincountycourtandprocuratorateor...