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Closure of the dorsal hole. Filopodia extending from each leading edge interdigitate at the dorsal midline and appear to prime the formation of adherens junctions between the two rows of leading edge cells. Newly formed septate junctions are also used to seal the dorsal hole. Dorsally-directed movement of a cell at the leading edge of the epithelium over the amnioserosa. The process by which the anatomical structures of embryonic epithelia are generated and organized. Morphogenesis pertains to the creation of form. Events that occur at the start of dorsal closure. The process during Drosophila embryogenesis whereby the ectodermal cells of the lateral epithelium stretch in a coordinated fashion to internalize the amnioserosa cells and close the embryo dorsally. The changes that occur during dorsal closure of the shape and structure of the amnioserosa, an epithelium that occupies the dorsal side of the embryo. The process whose specific outcome is the progression of the embryo over time, from zygote formation through syncytial blastoderm to the hatching of the first instar larva. An example of this process is found in Drosophila melanogaster. The process by which anatomical structures are generated and organized during the embryonic phase. Morphogenesis pertains to the creation of form. The embryonic phase begins with zygote formation. The end of the embryonic phase is organism-specific. For example, it would be at birth for mammals, larval hatching for insects and seed dormancy in plants. The process whose specific outcome is the progression of an embryo over time, from zygote formation until the end of the embryonic life stage. The end of the embryonic life stage is organism-specific and may be somewhat arbitrary; for mammals it is usually considered to be birth, for insects the hatching of the first instar larva from the eggshell. The process by which the anatomical structures of epithelia are generated and organized. Morphogenesis pertains to the creation of form. An epithelium consists of closely packed cells arranged in one or more layers, that covers the outer surfaces of the body or lines any internal cavity or tube.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: dorsal closure
Acc: GO:0007391
Aspect: Biological Process
Desc: The process during Drosophila embryogenesis whereby the ectodermal cells of the lateral epithelium stretch in a coordinated fashion to internalize the amnioserosa cells and close the embryo dorsally.
Proteins in PDR annotated with:
   This term: 180 [Search]
   Term or descendants: 182 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0007391 - dorsal closure (interactive image map)
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