TY - JOUR
T1 - Multiproxy evidence highlights a complex evolutionary legacy of maize in South America
AU - Kistler, Logan
AU - Maezumi, S. Yoshi
AU - Gregorio De Souza, Jonas
AU - Przelomska, Natalia A. S.
AU - Malaquias Costa, Flaviane
AU - Smith, Oliver
AU - Loiselle, Hope
AU - Ramos-madrigal, Jazmín
AU - Wales, Nathan
AU - Ribeiro, Eduardo Rivail
AU - Morrison, Ryan R.
AU - Grimaldo, Claudia
AU - Prous, Andre P.
AU - Arriaza, Bernardo
AU - Gilbert, M. Thomas P.
AU - De Oliveira Freitas, Fabio
AU - Allaby, Robin G.
PY - 2018/12/14
Y1 - 2018/12/14
N2 - Domesticated maize evolved from wild teosinte under human influences in Mexico beginning around 9000 years before the present (yr B.P.), traversed Central America by ~7500 yr B.P., and spread into South America by ~6500 yr B.P. Landrace and archaeological maize genomes from South America suggest that the ancestral population to South American maize was brought out of the domestication center in Mexico and became isolated from the wild teosinte gene pool before traits of domesticated maize were fixed. Deeply structured lineages then evolved within South America out of this partially domesticated progenitor population. Genomic, linguistic, archaeological, and paleoecological data suggest that the southwestern Amazon was a secondary improvement center for partially domesticated maize. Multiple waves of human-mediated dispersal are responsible for the diversity and biogeography of modern South American maize.
AB - Domesticated maize evolved from wild teosinte under human influences in Mexico beginning around 9000 years before the present (yr B.P.), traversed Central America by ~7500 yr B.P., and spread into South America by ~6500 yr B.P. Landrace and archaeological maize genomes from South America suggest that the ancestral population to South American maize was brought out of the domestication center in Mexico and became isolated from the wild teosinte gene pool before traits of domesticated maize were fixed. Deeply structured lineages then evolved within South America out of this partially domesticated progenitor population. Genomic, linguistic, archaeological, and paleoecological data suggest that the southwestern Amazon was a secondary improvement center for partially domesticated maize. Multiple waves of human-mediated dispersal are responsible for the diversity and biogeography of modern South American maize.
U2 - 10.1126/science.aav0207
DO - 10.1126/science.aav0207
M3 - Journal article
C2 - 30545889
SN - 0036-8075
VL - 362
SP - 1309
EP - 1313
JO - Science
JF - Science
IS - 6420
ER -