中國(guó)蒙古馬遺傳多樣性和分子系統(tǒng)進(jìn)化研究.pdf

1、內(nèi)蒙古農(nóng)業(yè)大學(xué)博士學(xué)位論文中國(guó)蒙古馬遺傳多樣性和分子系統(tǒng)進(jìn)化研究姓名：李金蓮申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：動(dòng)物遺傳育種與繁殖指導(dǎo)教師：芒來(lái)20060401StudyonGeneticDiversityandMolecularPhylogenyEvolutioninChineseMongolianHorseAbstractChineseMongolianhorsewasoneoftheoldesthorsebreedsintheworldand

2、hadbeingcameintosevelchoicenesshorsetypessuchasXimhe(XN)，Baerhu(BH)，Wushen(WS)Wuzhumuqin(WZ)afterevolutionofgeneticvariationandnaturalselectionforalongtimeMongolianhorsewasvaluablegeneticresourcesofhumanbeingbecauseofsom

3、egoodqualitiesincludingresistingchilliness，goodendurance，strongantidiseaseandgettingonwellwithotherseasilySomesystemworkwasfewaboutMongolianhorse’SgeneticdiversityoriginevolutionandgeneticrelationshipinChinaInmypaper，gen

4、eticdiversityofD—LoopregionandCytbgeneofmtDNAaredetectedandcomparativelyanalyzedbyPeR—sscPPeRRFLPandPCRproductssequencing，309samplesareincludedinfourtypesofChineseMongolianhorse，importingbreedThoroughbred(TB)，cultivating

5、breedSanhehorse(SH)andlocalbreedGuangxipony(GP)Theresultshowesthat：(1)ThereisabundantgenenticdiversityinChineseMongolianhorse(2)ChineseMongolianhorsecameofmultiplefemaleancestor(3)mtDNAheteroplasmyphenomenonisdetectedinC

6、hineseMongolianhorse(4)WespeculatedthatChineseseveralMongolianhorsescameofPrzewalskiihorse，namelyMongolianwildhorse(5)ThereisclosegeneticrelationshipofMongolianhorsesbetweenChineseandMongolian(6)Itisestimatedthedivergenc

7、etimeofChineseMongolianhorse，TB，SHandGPapproximatelyhappenedbetweenO22andO61millionyearsbefour(7)ItindicatesthereisverysignificantdivergenceamongthreebigbreedsandthedifferencesalsosignificantbetweendifferenttypesofChines

8、eMongolianhorse(8)ThesizeofChineseMongolianhorsepopulationkeptstableandkindsofhorsesdidnotundergoexpansionsorlastingincreasepattern(9)ThegeneticrelationshipbetweenWZandWSiStheclosest；moreclosebetweenXNandBH，bothofthemare

9、1essclosewithSHandtherelationshipamongfivehorsetypeofInnerMongoliawithGPandTBjSmorefarKeywords；Horse；mtDNAtPCR—SSCP；PCR—RFLPlGeneticDiversity；OriginEvolutionDirectedby：ProfOugarjaviinMangIaiAppIicantforDoctordegree：kIdin