The mammalian blastocyst

@article{Frankenberg2016TheMB,
  title={The mammalian blastocyst},
  author={Stephen R. Frankenberg and Flavia Regina Oliveira de Barros and Janet Rossant and Marilyn B. Renfree},
  journal={Wiley Interdisciplinary Reviews: Developmental Biology},
  year={2016},
  volume={5}
}
The blastocyst is a mammalian invention that carries the embryo from cleavage to gastrulation. For such a simple structure, it exhibits remarkable diversity in its mode of formation, morphology, longevity, and intimacy with the uterine endometrium. This review explores this diversity in the light of the evolution of viviparity, comparing the three main groups of mammals: monotremes, marsupials, and eutherians. The principal drivers in blastocyst evolution were loss of yolk coupled with… Expand
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