The genetic basis for differences in leaf form between Arabidopsis thaliana and its wild relative Cardamine hirsuta

@article{Hay2006TheGB,
  title={The genetic basis for differences in leaf form between Arabidopsis thaliana and its wild relative Cardamine hirsuta},
  author={Angela Hay and M. Tsiantis},
  journal={Nature Genetics},
  year={2006},
  volume={38},
  pages={942-947}
}
A key question in biology is how differences in gene function or regulation produce new morphologies during evolution. Here we investigate the genetic basis for differences in leaf form between two closely related plant species, Arabidopsis thaliana and Cardamine hirsuta. We report that in C. hirsuta, class I KNOTTED1-like homeobox (KNOX) proteins are required in the leaf to delay cellular differentiation and produce a dissected leaf form, in contrast to A. thaliana, in which KNOX exclusion… Expand
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