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The regionalization process by which the posterior (abdominal) regions of the embryo are specified by the gap genes. 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. Specification of the anterior (head and thoracic segments) of the embryo by the gap genes; exemplified in insects by the actions of hunchback gene product. Specification of the central (trunk) regions of the embryo by the gap genes; exemplified in insects by the actions of the Kruppel gene product. Specification of the terminal regions (the two non-segmented ends) of the embryo by the gap genes; exemplified in insects by the actions of huckebein and tailless gene products. Subdivision of the embryo along the anterior/posterior axis into anterior, posterior and terminal regions. 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: zygotic determination of anterior/posterior axis, embryo
Acc: GO:0007354
Aspect: Biological Process
Desc: 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.
Proteins in PDR annotated with:
   This term: 13 [Search]
   Term or descendants: 43 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0007354 - zygotic determination of anterior/posterior axis, embryo (interactive image map)
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