Genome sequence of a 5,310-year-old maize cob provides new insights into the early stages of maize domestication

Researchers who have sequenced the genome of a 5,310-year-old corn cob have discovered that the maize grown in central Mexico all those years ago was genetically more similar to modern maize than to its wild ancestor. For example, the ancient maize already carried genetic variants responsible for making kernels soft, a common feature of modern corn. The findings are reported in Current Biology on November 17.

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