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Type: Journal article
Title: Early allelic selection in maize as revealed by ancient DNA
Author: Jaenicke-Despres, V.
Buckler, E.
Smith, B.
Gilbert, M.
Cooper, A.
Doebley, J.
Paabo, S.
Citation: Science, 2003; 302(5648):1206-1208
Publisher: Amer Assoc Advancement Science
Issue Date: 2003
ISSN: 0036-8075
Statement of
Viviane Jaenicke-Després, Ed S. Buckler, Bruce D. Smith, M. Thomas P. Gilbert, Alan Cooper, John Doebley, and Svante Pääbo
Abstract: Maize was domesticated from teosinte, a wild grass, by approximately 6300 years ago in Mexico. After initial domestication, early farmers continued to select for advantageous morphological and biochemical traits in this important crop. However, the timing and sequence of character selection are, thus far, known only for morphological features discernible in corn cobs. We have analyzed three genes involved in the control of plant architecture, storage protein synthesis, and starch production from archaeological maize samples from Mexico and the southwestern United States. The results reveal that the alleles typical of contemporary maize were present in Mexican maize by 4400 years ago. However, as recently as 2000 years ago, allelic selection at one of the genes may not yet have been complete.
Keywords: Zea mays; Crops, Agricultural; DNA-Binding Proteins; Plant Proteins; Transcription Factors; DNA, Plant; Gene Frequency; Alleles; Genes, Plant; Time Factors; Archaeology; Mexico; Southwestern United States; Mass Spectrometry; Genetic Variation; Selection, Genetic; Biological Evolution
Description: © 2003 American Association for the Advancement of Science. All Rights Reserved.
RMID: 0020071355
DOI: 10.1126/science.1089056
Appears in Collections:Earth and Environmental Sciences publications
Australian Centre for Ancient DNA publications
Environment Institute Leaders publications

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