A transcriptomic hourglass in plant embryogenesis

@article{Quint2012ATH,
  title={A transcriptomic hourglass in plant embryogenesis},
  author={Marcel Quint and Hajk-Georg Drost and Alexander Gabel and Kristian Karsten Ullrich and Markus B{\"o}nn and Ivo Grosse},
  journal={Nature},
  year={2012},
  volume={490},
  pages={98-101}
}
Animal and plant development starts with a constituting phase called embryogenesis, which evolved independently in both lineages. Comparative anatomy of vertebrate development—based on the Meckel-Serrès law and von Baer’s laws of embryology from the early nineteenth century—shows that embryos from various taxa appear different in early stages, converge to a similar form during mid-embryogenesis, and again diverge in later stages. This morphogenetic series is known as the embryonic ‘hourglass… 
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