Preferred Name |
somite |
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Synonyms |
mesodermal cluster somitic mesoderm epithelial somite epimere mesoderm epimere somites somitus |
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Definitions |
When the somite becomes segmented from the segmental plate, it is composed of an epithelial sac enclosing mesenchymal somitocoel cells. Thereafter the somite differentiates into two parts, the ventro-medial mesenchymal sclerotome and the dorso-lateral epithelial dermomyotome. This change in the epithelial somite depends on surrounding tissue [PMID:15906248] Somites are spheres of epithelial cells that form sequentially along the anterior-posterior axis of the embryo through mesenchymal to epithelial transition of the presomitic mesoderm. |
|
ID |
http://purl.obolibrary.org/obo/UBERON_0002329 |
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comment |
When the somite becomes segmented from the segmental plate, it is composed of an epithelial sac enclosing mesenchymal somitocoel cells. Thereafter the somite differentiates into two parts, the ventro-medial mesenchymal sclerotome and the dorso-lateral epithelial dermomyotome. This change in the epithelial somite depends on surrounding tissue [PMID:15906248] |
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axiom_lost_from_external_ontology |
relationship type change: part_of paraxial mesoderm (AAO:0010568) CHANGED TO: develops_from paraxial mesoderm (UBERON:0003077)[AAO] relationship loss: develops_from paraxial mesenchyme (TAO:0000942)[TAO] relationship type change: OBO_REL:part_of trunk (TAO:0001115) CHANGED TO: develops_from trunk (UBERON:0002100)[TAO] |
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curator note |
EDITOR_NOTE currently classified as an epithelial vesicle, consistent with EHDAA2 and https://github.com/obophenotype/uberon/wiki/The-neural-crest. Consider making 'somitic mesoderm' a separate term and correlate with regionalization processes. Consider moving ZFA term to 'trunk somite' as it is part of the trunk |
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database_cross_reference |
ZFA:0000155 MAT:0000068 Wikipedia:Somite UMLS:C0376449 BTO:0001558 MESH:D019170 XAO:0000058 MIAA:0000068 EHDAA2:0003436 EMAPA:31169 NCIT:C34302 VHOG:0000191 TAO:0000155 AEO:0001015 AAO:0010569 EHDAA:366 EHDAA:699 FMA:85522 GAID:1306 |
|
definition |
Somites are spheres of epithelial cells that form sequentially along the anterior-posterior axis of the embryo through mesenchymal to epithelial transition of the presomitic mesoderm. |
|
depiction |
http://upload.wikimedia.org/wikipedia/commons/6/64/Gray19_with_color.png |
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develops_from | ||
external_definition |
Post-cranial axial segments which form sclerotome and dermomyotome.[AAO] Undifferentiated mesodermal components of early trunk or tail segments or metameres, derived from paraxial mesoderm; forms myotomes, sclerotomes and perhaps dermatomes. Kimmel et al, 1995.[TAO] |
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has_broad_synonym |
mesodermal cluster |
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has_obo_namespace |
uberon |
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has_related_synonym |
somitic mesoderm epithelial somite epimere mesoderm epimere somites somitus |
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has_relational_adjective |
somitic |
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homology_notes |
(...) cephalocordates and craniates belong to a group known as Somitichordata. Somitichordate synapomorphies include (1) somites (...) (reference 1); The idea that the last common ancestor of bilaterian animals (Urbilateria) was segmented has been raised recently on evidence coming from comparative molecular embryology (reference 2).[well established][VHOG] |
|
id |
UBERON:0002329 |
|
in_subset |
http://purl.obolibrary.org/obo/uberon/core#vertebrate_core |
|
label |
somite |
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never_in_taxon | ||
notation |
UBERON:0002329 |
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only in taxon | ||
prefLabel |
somite |
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treeView | ||
subClassOf |