书目

GeneticsandtheSearchforModernHumanOrigins

内容简介

Amajordebateinanthropologyconcernstherelationshipbetweenanatomicallymodernhumansandearlier"archaic"humansincludingtheNeandertals.Whatwastheoriginofmodernhumans?DidweariseasanewspeciesinAfrica200,000yearsagoandthenreplacearchaichumanpopulationsoutsideofAfrica,orareouroriginspartofasingleevolvinglineageextendingbackoverthepasttwomillionyears?Inadditiontofossilandarchaeologicalevidence,anthropologistshaveincreasinglyturnedtousinggeneticdataonlivingpopulationstoaddressthisquestion.Patternsofgeneticvariationwithinandbetweenlivinghumanpopulationsarefelttocontaincluesastoourspecies′evolutionaryhistory,andprovideareflectionofthepast.Thisbookreviewsthemodernhumanoriginsdebatefocusingonthegeneticevidencerelatingtoourorigins,includinggeneticvariationinlivinghumansandrecentdiscoveriesofancientDNAfromfossilspecimens.Followingabriefintroductiontotheproblemandareviewofevolutionarygenetics,thebookfocusesongenetreesandthesearchforacommonancestor,geneticdiversitywithinpopulations,geneticdistancesbetweenpopulations,theuseofgeneticdatatoreconstructancientdemography,andNeandertalDNA.Themainpointofthetextisthatalthoughthegeneticdataareoftencompatiblewithareplacementmodel,theyarealsocompatiblewithsomemultiregionalmodels.Theconcludingchaptermakesthecasethatmodernhumanoriginsaremostly,butnotexclusively,outofAfrica.

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