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The process that results in the patterns of cell differentiation that will arise in an embryo. The establishment, maintenance and elaboration of a pattern along a line or around a point. The establishment, maintenance and elaboration of a pattern along a line or a point in an embryo. The establishment, maintenance and elaboration of the anterior/posterior axis. The anterior-posterior axis is defined by a line that runs from the head or mouth of an organism to the tail or opposite end of the organism. The specification of the anterior/posterior axis of the embryo by products of genes expressed in the zygote; exemplified in insects by the gap genes, pair rule genes and segment polarity gene cascade. The specification of the anterior/posterior axis of the embryo by gradients of maternally-transcribed gene products; exemplified in insects by the morphogens, bicoid and nanos. The hierarchical steps resulting in the progressive subdivision of the anterior/posterior axis of the embryo. The pattern specification process by which an axis or axes is subdivided in space to define an area or volume in which specific patterns of cell differentiation will take place or in which cells interpret a specific environment. Subdivision of the embryo along the anterior/posterior axis into anterior, posterior and terminal regions. The regionalization process by which specific areas of cell differentiation are determined along the anterior-posterior axis. The anterior-posterior axis is defined by a line that runs from the head or mouth of an organism to the tail or opposite end of the organism. The specification of the anterior/posterior axis of the embryo by the products of genes expressed maternally and genes expressed in the zygote.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: anterior/posterior axis specification, embryo
Acc: GO:0008595
Aspect: Biological Process
Desc: The specification of the anterior/posterior axis of the embryo by the products of genes expressed maternally and genes expressed in the zygote.
Synonyms:
  • anterior/posterior axis determination, embryo
Proteins in PDR annotated with:
   This term: 67 [Search]
   Term or descendants: 235 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0008595 - anterior/posterior axis specification, embryo (interactive image map)
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