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Phylogenetic Trees Lecture 1系统发育树讲座1.ppt

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icTreesLecture1Credits:,,,.anismsisdrivenbyDiversityDifferentindividualscarrydifferentvariantsofthesamebasicblueprintMutationsTheDNAsequencecanbechangedduetosinglebasechanges,deletion/insertionofDNAsegments,:Albertsetal3D’aprèsErnstHaeckel,1891Treeoflife-abetterpicture4PrimateevolutionAphylogenyisatreethatdescribesthesequenceofspeciationeventsthatleadtotheformingofasetofcurrentdayspecies;’sphylogenieswereconstructedbyexpertsbasedontheiropinion(subjectivecriteria)Sincethen,ictreesThousandsofarticlesinthelastdecadesImportantformanyaspectsofbiology :morphologicalfeatures:numberoflegs,lengthsoflegs,(.,globins)mongibbonBarbaryapeBaboonWhite-frontedcapuchinSlowlorisTreeshrewJapanesepipistrelleLong-tailedbatJamaicanfruit-eatingbatHorseshoebatLittleredflyingfoxRyukyuflyingfoxMouseRatVoleCane-ratGuineapigSquirrelDormouseRabbitPikaPigHippopotamusSheepCowAlpacaBluewhaleFinwhaleSpermwhaleDonkeyHorseIndianrhinoWhiterhinoElephantAardvarkGreysealHarborsealDogCatAsiaticshrewLong-clawedshrewSmallMadagascarhedgehogHedgehogGymnureMoleArmadilloBandicootWallarooOpossumPlatypusArchontaGliresUngulataCarnivoraInsectivoraXenarthra(BasedonMcKennaandBell,1997)8Rat QEPGGLVVPPTDARabbit QEPGGMVVPPTDAGorilla QEPGGLVVPPTDACat ictreeTherearemanypossibletypesofsequencestouse().9DonkeyHorseIndianrhinoWhiterhinoGreysealHarborsealDogCatBluewhaleFinwhaleSpermwhaleHippopotamusSheepCowAlpacaPigLittleredflyingfoxRyukyuflyingfoxHorseshoebatJapanesepipistrelleLong-tailedbatJamaicanfruit-eatingbatAsiaticshrewLong-mongibbonBarbaryapeBaboonWhite-frontedcapuchinSlowlorisSquirrelDormouseCane-ratGuineapigMouseRatVoleHedgehogGymnureBandicootWallarooOpossumPlatypusPerissodactylaCarnivoraCetartiod

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