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dc.contributor.authorda Fonseca, Rute R.
dc.contributor.authorSmith, Bruce D.
dc.contributor.authorWales, Nathan A.
dc.contributor.authorCappellini, Enrico
dc.contributor.authorSkoglund, Pontus
dc.contributor.authorFumagalli, Matteo
dc.contributor.authorSamaniego, Jose Alfredo
dc.contributor.authorCaroe, Christian
dc.contributor.authorAvila-Arcos, Maria C.
dc.contributor.authorHufnagel, David E.
dc.contributor.authorKorneliussen, Thorfinn S.
dc.contributor.authorVieira, Filipe G.
dc.contributor.authorJakobsson, Mattias
dc.contributor.authorArriaza, Bernardo
dc.contributor.authorWillerslev, Eske
dc.contributor.authorNielsen, Rasmus
dc.contributor.authorHufford, Matthew B.
dc.contributor.authorAlbrechtsen, Anders
dc.contributor.authorRoss-Ibarra, Jeffrey
dc.contributor.authorGilbert, M. Thomas P.
dc.description.abstractThe origin of maize (Zea mays mays) in the US Southwest remains contentious, with conflicting archaeological data supporting either coastal1,​2,​3,​4 or highland5,6 routes of diffusion of maize into the United States. Furthermore, the genetics of adaptation to the new environmental and cultural context of the Southwest is largely uncharacterized7. To address these issues, we compared nuclear DNA from 32 archaeological maize samples spanning 6,000 years of evolution to modern landraces. We found that the initial diffusion of maize into the Southwest about 4,000 years ago is likely to have occurred along a highland route, followed by gene flow from a lowland coastal maize beginning at least 2,000 years ago. Our population genetic analysis also enabled us to differentiate selection during domestication for adaptation to the climatic and cultural environment of the Southwest, identifying adaptation loci relevant to drought tolerance and sugar content.
dc.publisherNature Publishing Group
dc.relation.ispartofjournalNature Plants
dc.subject.fieldofresearchPopulation, Ecological and Evolutionary Genetics
dc.titleThe origin and evolution of maize in the Southwestern United States
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWillerslev, Eske

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