Cellular and Subcellular Structure of Neoproterozoic Animal Embryos

@article{Hagadorn2006CellularAS,
  title={Cellular and Subcellular Structure of Neoproterozoic Animal Embryos},
  author={J. W. Hagadorn and S. Xiao and P. Donoghue and S. Bengtson and N. J. Gostling and M. Pawlowska and E. Raff and R. Raff and F. Turner and Yin Chongyu and C. Zhou and X. Yuan and Matthew B McFeely and M. Stampanoni and K. Nealson},
  journal={Science},
  year={2006},
  volume={314},
  pages={291 - 294}
}
Stereoblastic embryos from the Doushantuo Formation of China exhibit occasional asynchronous cell division, with diminishing blastomere volume as cleavage proceeded. Asynchronous cell division is common in modern embryos, implying that sophisticated mechanisms for differential cell division timing and embryonic cell lineage differentiation evolved before 551 million years ago. Subcellular structures akin to organelles, coated yolk granules, or lipid vesicles occur in these embryos. Paired… Expand
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