Yolk proteolysis and aquaporin-1o play essential roles to regulate fish oocyte hydration during meiosis resumption.

@article{Fabra2006YolkPA,
  title={Yolk proteolysis and aquaporin-1o play essential roles to regulate fish oocyte hydration during meiosis resumption.},
  author={M. Isabel Fabra and Demetrio Rald{\'u}a and Maria Gr{\`a}cia Bozzo and Peter M T Deen and Esther Lubzens and Joan Cerd{\`a}},
  journal={Developmental biology},
  year={2006},
  volume={295 1},
  pages={
          250-62
        }
}
In marine fish, meiosis resumption is associated with a remarkable hydration of the oocyte, which contributes to the survival and dispersal of eggs and early embryos in the ocean. The accumulation of ions and the increase in free amino acids generated from the cleavage of yolk proteins (YPs) provide the osmotic mechanism for water influx into the oocyte, in which is involved the recently identified, fish specific aquaporin-1o (AQP1o). However, the timing when these processes occur during oocyte… CONTINUE READING
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