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Title: Two teosintes made modern maize

The origins of maize were the topic of vigorous debate for nearly a century, but neither the current genetic model nor earlier archaeological models account for the totality of available data, and recent work has highlighted the potential contribution of a wild relative,Zea maysssp.mexicana. Our population genetic analysis reveals that the origin of modern maize can be traced to an admixture between ancient maize andZea maysssp.mexicanain the highlands of Mexico some 4000 years after domestication began. We show that variation in admixture is a key component of maize diversity, both at individual loci and for additive genetic variation underlying agronomic traits. Our results clarify the origin of modern maize and raise new questions about the anthropogenic mechanisms underlying dispersal throughout the Americas.

 
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Award ID(s):
1822330
NSF-PAR ID:
10489623
Author(s) / Creator(s):
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Publisher / Repository:
American Association for the Advancement of Science
Date Published:
Journal Name:
Science
Volume:
382
Issue:
6674
ISSN:
0036-8075
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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