Oogenesis of microlecithal oocytes in the viviparous teleost Heterandria formosa

@article{Uribe2011OogenesisOM,
  title={Oogenesis of microlecithal oocytes in the viviparous teleost Heterandria formosa},
  author={Mari Carmen Uribe and Harry J. Grier},
  journal={Journal of Morphology},
  year={2011},
  volume={272}
}
Viviparous teleosts exhibit two patterns of embryonic nutrition: lecithotrophy (when nutrients are derived from yolk that is deposited in the oocyte during oogenesis) and matrotrophy (when nutrients are derived from the maternal blood stream during gestation). Nutrients contained in oocytes of matrotrophic species are not sufficient to support embryonic development until term. The smallest oocytes formed among the viviparous poeciliid fish occur in the least killifish, Heterandria formosa… 
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