(1.4)--gene cloning转基因的科学.ppt

(1.4)--gene cloning转基因的科学.ppt

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BackgroundInformationAvailableStrategies

forGeneCloningOct.22,2008

TheresultsoftraditionalAgbiotecharenotthatbad,buttheyaretime-consumingteosintecobcornJohnDoebleyphotoWildtomato(Lycopersiconpimpinellifolium)D=1cm

/design/Samples/plant-breeding.jpg

PlantBiotechnologyTraditionalcrossbreedingRecombinantDNAtechniqueshttp://www.insp.mx/xcongreso/ponencias/5

FundamentalDogmaDNARNAProteinsCircuitsPhenotypesPopulationsGenBankEMBLDDBJMapDatabasesSwissPROTPIRPDBGeneExpression?ClinicalData?RegulatoryPathways?Metabolism?Biodiversity?Neuroanatomy?Development?MolecularEpidemiology?ComparativeGenomics?thepost-genomicerawillneedmanymoretocollect,manage,andpublishthecomingfloodofnewfindings.Althoughmanydatabasesalreadyexisttodistributemolecularinformation,Ifthisextensioncoversfunctionalgenomics,then“functionalgenomics”isequivalenttobiology.

StrategyforgenecloningCurrentStrategy:Fromthetraittogenesequence(StructuralGenomicsandFunctionalGenomics)NovelStrategy:Fromsequencetogeneanditslinkingtrait(ComparativeGenomicsandBioinformatics)

Structuralgenomicsincludesthegeneticmapping,physicalmappingandsequencingofentiregenomes.

HowtodoStructuralgenomicsphysicalmappingandsequencingofentiregenomes.

AdvancedGenomicsWillAccelerateDiscoveryofNextGenerationProductsGenomeGenemapGenesequenceGeneexpressionAgtraitsYieldDroughtDiseaseStressOilqualityMaturityStressDiseaseYieldHerbicidetolerancetagctagcgctcgctgtcgtggtctgatgatgttgtgtaaaacggcAlzheimersBreastCancerArthritisStressAgingAgingCVDiseaseObesityVisionArthritisPharmatraitstg

Relationshipsamongfourmappingstrategiesandmaps

Trait-Allele-GeneDefinitionsareneededforthisstatement:Allele-thealternateformsofagene(基因表达的一种可变形式)Gene-apieceofDNAthatcontrolstheexpressionofatrait(控制性状表达的一段DNA序列)Allelicdifferencesatgenescontrolaspecifictrait(决定某一性状的基因存在等位差异)

What

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