01743naa a2200289 a 450000100080000000500110000800800410001902400320006010000170009224501230010926000090023250000480024152008840028965300270117365300090120065300230120965300340123265300100126665300200127665300130129670000140130970000230132370000180134670000190136470000180138377300520140121672182024-09-06       2024    bl uuuu     u00u1 u    #d7 a10.1126/sciadv.adn14662DOI1 aCOSTA, F. M.  aArchaeological findings show the extent of primitive characteristics of maize in South America.h[electronic resource]  c2024  aNa publicação: Fabio de Oliveira Freitas.  aScientific research has suggested that maize spread from Mexico and arrived in lowland South America in a state of partial domestication. However, archaeological samples with primitive morphological characteristics that corroborate this finding have not been recorded in the region thus far. Unexpectedly, many samples were identified in the Peruaçu Valley with characteristics never previously observed in South America. These archaeological samples with primitive characteristics, which are the focus of this work, represent the furthest records from the center of origin of the species and the longest duration of the maintenance of such characteristics (between 1010 and 570 years before present). The findings of this study, including archaeological samples, native races, and samples of teosinte, attest to a long history of maize diversification in lowland South America.  aArchaeological samples  aCobs  aCorn domestication  aHuman populations in the past  aMaize  aPeruaçu Valley  aTeosinte1 aVIDAL, R.1 aSILVA, N. C. de A.1 aVEASEY, E. A.1 aFREITAS, F. O.1 aZUCCHI, M. I.  tScience Advancesgv. 10, n. 36, eadn1466, 2024.