Article
On the origin of floral morphological novelties.
FEBS letters - 1 Jun 2004
He Chaoying, Münster Thomas, Saedler Heinz
Abstract excerpt
Floral morphological novelties, like homeotic changes of whorl 1 organs, can easily arise by modifying existing regulatory networks. Ectopic expression of B-function MADS-box genes in whorl 1 leads to a replacement of sepals by petals, as is found in the Liliaceae. In cases where leaf-like sepals or even inflated calyces develop, which ultimately envelop the mature fruit as in Physalis, ectopic expression of a...
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