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Setting up for gastrulation in zebrafish.

Florence L Marlow1

  • 1Icahn School of Medicine Mount Sinai Department of Cell, Developmental and Regenerative Biology, New York, NY, United States.

Current Topics in Developmental Biology
|January 22, 2020
PubMed
Summary

Zebrafish embryos use integrated signaling pathways and cell interactions to establish early body plans. This research explores the genetic and molecular controls guiding cell identity and tissue patterning during gastrulation.

Keywords:
Anterior-posterior axisBMPCell fateDorsal-ventral axisEctodermEndodermFGFGerm layersGradientMaternalMesodermMorphogenesisNodalOrganizerPatterningSignalingTGF-βWntZygotic

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Area of Science:

  • Developmental Biology
  • Genetics
  • Cell Biology

Background:

  • Vertebrate embryos develop from totipotent cells post-fertilization.
  • Conserved signaling pathways (Bmp, Nodal, Wnt, Fgf) guide cell fate determination.
  • Zebrafish models provide insights into early embryonic patterning.

Purpose of the Study:

  • To review recent advances in understanding early embryonic patterning in zebrafish.
  • To elucidate the genetic and molecular mechanisms controlling cell identity and tissue patterning.
  • To highlight the integration of signaling pathways and cell interactions in development.

Main Methods:

  • Review of molecular genetics research in zebrafish.
  • Analysis of advances in genetic manipulation and imaging technologies.
  • Integration of findings on cellular, molecular, and biophysical aspects of patterning.

Main Results:

  • Early patterning relies on the integration of multiple signaling pathways and physical cell interactions.
  • Distinct pathways are not solely responsible for specific cell fate specification.
  • Understanding of maternal and zygotic contributions to patterning has advanced.

Conclusions:

  • Zebrafish gastrulation involves complex interplay of signaling and physical forces.
  • Recent research deepens the understanding of how cell identity and tissue patterns emerge.
  • Future research directions focus on the integrated control of developmental events.