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1、UniversityCode：10225RegisterCode：080524DissertationfortheDegreeofMasterTheStudyontwokindsofmolecularmarkeramongthedifferentspeciesofCerasushumilis(Bge)SokandthegeneticvariationofnutritionindicesCandidate：Supervisor：Assoc

2、iateSupervisor：AcademicDegreeAppliedfor：Speciality：DateofOralExamination：University：WangXinAssociateProfAoHongProfWangQiuyuMastergenetics2008623NortheastForestryUniversity目錄AbstractInthisstudythetrialmaterialswereeightki

3、ndsofCerasushumilis(Bge)SokvarietiesfromtheBeijingBureauofForestryseedlingsstationTheCerasushumilis(Bge)SokweredetectedthatthecontentofthesolublesugarandsolubleproteinhadchangedindifferenttimeTheoptimalSRAPPCRandISSRPCRs

4、ystemoftheCerasushumilis(Bge)SokewerefirstestablishedinthisresearchMoreovertheISSRmolecularmarkerWasappliedtostudythegeneticdiversityoftheCerasus辦甜棚玎西(Bge)SokThemainfindingswereasfollows：Theanalyticresultfromeightvarieti

5、esoftheCerasushumilis(Bge)Sokshowedthat61polymorphismsitesCanbeamplifiedfromatotalof80individualsbyl1primers，theproportionofthepolymorphiclociwas7821％，theaverageofeachprimerover55polymorphicsitesThegeneticdiversityofthee

6、ightkindsofCerasus辦甜m玎括(Bge)SokwasestimatedbyShannonindice：TangshanHuairou—labagoumenNo5ofNongdaNo4ofNongdaNo3ofNongdaHuairoutanghekouYanqingjianjiadianHuangshandianThereexistedcertaingeneticdifferentiationinCerasus廳甜，行玎

7、括(Bge)SokThegeneticvariationamongthepopulationswas2532％ofthetotal，andtheother7468％distributedamongindividualswithinpopulationsThisindicatedthatthevariationofCerasushumilis(Bge)SokmainlycamefromwithinpopulationsOnthebasis

8、oftheclusteranalysisofgeneticdistancematrix，theeightkindsofCerasushumilis(Bge)Sokcanbedividedintotwocategories：thegeneticsimilarityamongthevarietiesofHuairoulabagoumen、Yanqingjianjiadian、Huairoutanghekou、No3ofNongda、No4o

9、fNongdaandNo5ofNongdaareobvious；whilethevariationbetweenTangshanandHuangshandianwereenormouswiththeothersThereiSremarkabledifferenceinthesolublesugarcontentamongthedifferentCerasushumilis(Bge)SokvarietiesInthisstudy，thes

10、olublesugarcontentofTangshanandNo3ofNongdaarehigherthanotherkindsofthematdifferentperiods，whiletheNo4ofNongdaandHuangshandianarelowerSimilarlytheresultalsowasconformtothesolubleproteincontentindifferenttimesThesolublepro

11、teincontentWashigher，namely，TangshanandNo3ofNongda，andNo4ofNongdaandHuangshandianWaslowerSo，TangshanandNo3ofNongdawerepreferablevarietiesaccordingtothesolublesugarandsolubleproteincontentindifferentkindsofCerasushumilis(

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