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1、MolecularPhylogeneticsandEvolution57(2010)1162–1172ContentslistsavailableatScienceDirectMolecularPhylogeneticsandEvolutionjournalhomepage:www.elsevier.com/locate/ympevChloroplastphylogenyandphylogeographyofStellerachamaejasmeontheQinghai-TibetPlateauandinadjacentregionsaba,⇑Yong-HongZ
2、hang,SergeiVolis,HangSunaKeyLaboratoryofBiodiversityandBiogeography,KunmingInstituteofBotany,ChineseAcademyofSciences,Kunming,Yunnan650204,People’sRepublicofChinabLifeSciencesDepartment,Ben-GurionUniversityoftheNegev,P.O.Box653,BeerSheva84105,IsraelarticleinfoabstractArticlehistory:Hi
3、storiceventssuchastheupliftofQinghai-TibetPlateau(Q-TPlateau)andclimaticoscillationsintheReceived1April2010QuaternaryperiodgreatlyaffectedtheevolutionandmoderndistributionofSino-Tibetanflora.StelleraRevised27August2010chamaejasme,aperennialherbwithflowercolorpolymorphismthatisdistribute
4、dfromthemountainousAccepted31August2010southeasternQ-TPlateau(HengduanMountains,H-DMountains)tothevastplatformoftheQ-TPlateauAvailableonline7September2010andtheadjacentplainofnorthernChina,providesanexcellentmodeltoexploretheeffectsofhistoriceventsontheoriginationandvariationofspecies
5、.Inthisstudy,weconductedaphylogeneticandphylo-Keywords:geographicalstudyusingthreechloroplastsequences(trnT-L,trnL-FandrpL16)in26populationsofS.cha-Stellerachamaejasmemaejasmeand12outgroupsfromtheThymeleaceae.PhylogeneticanalysisandmolecularclockestimationPhylogenyPhylogeographyreveal
6、edthatthemonophyleticoriginofS.chamaejasmeoccurredca.6.5892Ma,whichisconsistentwithQinghai-TibetPlateautheradicalenvironmentchangescausedbytherapidupliftoftheQ-TPlateauca.7Ma.Intra-specificdif-RefugiumferentiationofS.chamaejasmeisestimatedtohaveoccurredafterca.2.1Ma.Twelvehaplotypeswer
7、ePost-glacialexpansionrevealedfromcombinedtrnL-FandrpL16sequences.Highgeneticdiversity(hT=0.834)andpopulationdifferentiation(NST=0.997andGST=0.982)implyrestrictedgeneflowamongpopulationsandsignificantgeographicalorenvironmentalisolation.AllpopulationsfromthevastplainofnorthernChinawered
8、om-in
