Functional divergence within the APETALA3/PISTILLATA floral homeotic gene lineages.

@article{Lamb2003FunctionalDW,
  title={Functional divergence within the APETALA3/PISTILLATA floral homeotic gene lineages.},
  author={Rebecca S. Lamb and Vivian F. Irish},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2003},
  volume={100 11},
  pages={6558-63}
}
Changes in homeotic gene expression patterns or in the functions of the encoded proteins are thought to play a prominent role in the evolution of new morphologies. The floral homeotic APETALA3 (AP3) and PISTILLATA (PI) genes encode MADS domain-containing transcription factors required to specify petal and stamen identities in Arabidopsis. We have previously shown that perianth expression of AP3 and PI homologs varies in different groups of angiosperms with diverse floral structures, suggesting… CONTINUE READING
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