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Plant morphogenesis and KNOX genes

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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Figure 1: Dominant knox mutations.
Figure 2: Class 1 KNOX genes in maize, rice, tobacco and A. thaliana are expressed in two basic patterns.

Bob Crimi

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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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