JSON

somite

^ http://purl.obolibrary.org/obo/UBERON_0002329

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. [ http://dx.doi.org/10.1111/j.1439-0426.2012.01987.x http://en.wikipedia.org/wiki/Somite ]

Term info

database cross reference
  • VHOG:0000191
  • ZFA:0000155
  • FMA:85522
  • NCIT:C34302
  • AEO:0001015
  • MIAA:0000068
  • UMLS:C0376449 (ncithesaurus:Somite)
  • EHDAA2:0003436
  • MESH:D019170
  • EHDAA:699
  • TAO:0000155
  • AAO:0010569
  • EMAPA:31169
  • GAID:1306
  • BTO:0001558
  • EHDAA:366
  • XAO:0000058
  • MESH:A16.254.425.660.750
  • MAT:0000068
  • Wikipedia:Somite
Subsets

uberon_slim, pheno_slim, vertebrate_core

plural term
somites

UBPROP 0000001

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], Post-cranial axial segments which form sclerotome and dermomyotome.[AAO]

UBPROP 0000002

relationship loss: develops_from paraxial mesenchyme (TAO:0000942)[TAO], relationship type change: part_of paraxial mesoderm (AAO:0010568) CHANGED TO: develops_from paraxial mesoderm (UBERON:0003077)[AAO], relationship type change: OBO_REL:part_of trunk (TAO:0001115) CHANGED TO: develops_from trunk (UBERON:0002100)[TAO]

UBPROP 0000003

(...) 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]

UBPROP 0000007

somitic

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]

depicted by

http://upload.wikimedia.org/wikipedia/commons/6/64/Gray19_with_color.png

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

has related synonym

somites, somitus, epimere, epimere mesoderm, epithelial somite, somitic mesoderm

has broad synonym

mesodermal cluster

id

UBERON:0002329

imported from

http://purl.obolibrary.org/obo/uberon.owl, http://purl.obolibrary.org/obo/cl.owl

never in taxon

http://purl.obolibrary.org/obo/NCBITaxon_7712

prefLabel

Somite