KNOX genes function in plant meristems, which produce leaves and stems. Three recent studies show that the dwarf phenotype, brevipedicellus, is caused by a recessive mutation in a KNOX gene. A fourth study shows that misexpression of KNOX genes leads to novel features that may have selective value.
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Hake, S., Ori, N. Plant morphogenesis and KNOX genes. Nat Genet 31, 121–122 (2002). https://doi.org/10.1038/ng0602-121
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DOI: https://doi.org/10.1038/ng0602-121
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