The mutation that unlocked corn kernels – Genes to Genomes

If not for a single-nucleotide mutation, each kernel on a juicy corn cob would be trapped inside an inedible casing as tough as a walnut shell. In the July issue of GENETICS, Wang et al. identify an amino acid substitution that was key to the development of the so-called “naked” kernels that characterize modern corn (maize).

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