Genetic structure and differentiation of Oryza sativa L.in China

《Genetic structure and differentiation of Oryza sativa L.in China》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、TheorApplGenet(2009)119:1105–1117DOI10.1007/s00122-009-1112-4ORIGINALPAPERGeneticstructureanddifferentiationofOryzasativaL.inChinarevealedbymicrosatellitesDonglingZhangÆHongliangZhangÆMeixingWangÆJunliSunÆYongwenQiÆFengmeiWangÆXinghuaWeiÆLongzhiHanÆXiangkunWangÆZichao

2、LiReceived:12November2008/Accepted:13July2009/Publishedonline:1August2009ÓSpringer-Verlag2009AbstractChinaisoneofthelargestcentersofgeneticimposedonthesubspeciesledtofurtherdifferentiation,butdiversityofOryzasativaL.intheworld.Usingageneti-thevariationwithineachsubspe

3、ciesresultedfromdifferentcallyrepresentativeprimarycorecollectionof3,024ricecauses.Indica,undertropical-likeorlowland-likeenvi-landracesinChina,weanalyzedthegeneticstructureandronments,exhibitedcleardifferentiationamongseasonalintraspecificdifferentiationofO.sativa,and

4、thedirectionalecotypes,butnotamongsoil-wateryecotypes;andjapon-evolutionofSSR.Thegeneticstructurewasinvestigatedicashowedcleardifferencesbetweensoilwaterregimebymodel-basedstructureanalysisandconstructionofecotypes,butnotamongseasonalecotypes.Chinesecul-neighbor-joini

5、ngphylogenetictree.Comparisonbetweentivatedricetookonevidentdirectionalevolutioningeneticstructureandpredefinedpopulationsaccordingtomicrosatelliteallelesizeatseveralaspects,suchassub-Ting’staxonomicsystemrevealedahierarchicalgeneticspeciesandgeographicalpopulations.Ja

6、ponicahassmallerstructure:twodistinctsubspecies,eachwiththreeecotypesallelesizesthanindica,andthismaypartlybetheresultofanddifferentnumbersofgeo-ecogroupswithineacheco-theirdifferentdomesticationtimes.Allelesizewasalsotype.Twosubspeciesevidentlyresultedfromadaptationt

7、onegativelycorrelatedwithlatitudeandaltitude,andthisdifferentenvironments.Thedifferentcroppingsystemsmaybeinterpretedbydifferentmutationrates,selectionpressures,andpopulationsizeeffectsunderdifferentenvironmentsandcroppingsystems.CommunicatedbyJ.Yu.Electronicsupplemen

8、tarymaterialTheonlineversionofthisIntroductionarticle(doi:10.1007/s00122-009-1112-4)containssupplementarymaterial,whichisava