yolk syncytial layer

yolk syncytial layer
a peripheral layer of the yolk cell including nuclei and non-yolky cytoplasm

Dictionary of ichthyology. 2009.

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  • internal yolk syncytial layer — the portion of the yolk syncytial layer that lies deep to the blastoderm during epiboly …   Dictionary of ichthyology

  • periblast — a thin membrane in Teleostei lying below the embryo and surrounding the yolk. An old term for the yolk syncytial layer …   Dictionary of ichthyology

  • marginal blastomere — a cell incompletely cleaved before the yolk syncytial layer forms located in the surface layer just at the rim of the blastodisc …   Dictionary of ichthyology

  • deep cells — Cells (blastomeres) in the teleost blastula that lie between the outer cell layer and the yolk syncytial layer, and are the cells from which the embryo proper is constructed during gastrulation; much studied in the fish, Fundulus …   Dictionary of molecular biology

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