Radical alterations in the roles of homeobox genes during echinoderm evolution

@article{Lowe1997RadicalAI,
  title={Radical alterations in the roles of homeobox genes during echinoderm evolution},
  author={Christopher J. Lowe and Gregory A. Wray},
  journal={Nature},
  year={1997},
  volume={389},
  pages={718-721}
}
Echinoderms possess one of the most highly derived body architectures of all metazoan phyla, with radial symmetry, a calcitic endoskeleton, and a water vascular system,. How these dramatic morphological changes evolved has been the subject of extensive speculation and debate, but remains unresolved. Because echinoderms are closely related to chordates and postdate the protostome/deuterostome divergence, they must have evolved from bilaterally symmetrical ancestors. Here we report the expression… CONTINUE READING
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