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CROSS-SPECIES ANATOMY - ANNOTATIONS

The Basic subset of the UBERON integrated, cross-species anatomy ontology is downloaded weekly from http://berkeleybop.org/ontologies/uberon/basic.obo. For more information about this ontology see the "About" page on the UBERON website at http://uberon.github.io/about.html.

Term:somite
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Accession:UBERON:0002329 term browser browse the term
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.
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]; [homology-note] "(...) 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]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000191", ontology="VHOG", source="ISBN:978-0030223693 Liem KF, Bemis WE, Walker WF, Grande L, Functional Anatomy of the Vertebrates: An Evolutionary Perspective (2001) p.40, DOI:10.1093/icb/43.1.137 Balavoine G, Adoutte A, The segmented urbilateria: a testable scenario. Integrative and Comparative Biology (2003)", source="http://bgee.unil.ch/"}
Synonyms:exact_synonym: mesodermal cluster
 related_synonym: epimere;   epimere mesoderm;   epithelial somite;   somites;   somitic mesoderm;   somitus
 xref: AAO:0010569;   AEO:0001015;   BTO:0001558;   EHDAA2:0003436;   EHDAA:366;   EHDAA:699;   EMAPA:31169;   FMA:85522;   GAID:1306;   MAT:0000068;   MESH:D019170;   MIAA:0000068;   NCI:C34302;   TAO:0000155;   UMLS:C0376449;   VHOG:0000191;   Wikipedia:Somite;   XAO:0000058;   ZFA:0000155
 external_ontology: never_in_taxon NCBITaxon:7712
 axiom_lost: relationship loss: develops_from paraxial mesenchyme (TAO:0000942)[TAO]" xsd:string {date_retrieved="2012-08-14", external_class="TAO:0000155", ontology="TAO;   relationship type change: OBO_REL:part_of trunk (TAO:0001115) CHANGED TO: develops_from trunk (relationship type change: OBO_REL:part_of trunk (TAO:0001115) CHANGED TO: develops_from trunk (UBERON:0002100)[TAO]" xsd:string {date_retrieved="2012-08-14", external_class="TAO:0000155", ontology="TAO)[TAO]" xsd:string {date_retrieved="2012-08-14", external_class="TAO:0000155", ontology="TAO;   relationship type change: part_of paraxial mesoderm (AAO:0010568) CHANGED TO: develops_from paraxial mesoderm (relationship type change: part_of paraxial mesoderm (AAO:0010568) CHANGED TO: develops_from paraxial mesoderm (UBERON:0003077)[AAO]" xsd:string {date_retrieved="2012-06-20", external_class="AAO:0010569", ontology="AAO)[AAO]" xsd:string {date_retrieved="2012-06-20", external_class="AAO:0010569", ontology="AAO
 relational_adjective: somitic



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Term paths to the root
Path 1
Term Annotations click to browse term
  UBERON ontology 0
    anatomical entity 0
      material anatomical entity 0
        developing anatomical structure 0
          somite 0
            dermomyotome + 0
            head somite + 0
            sclerotome + 0
            somite 1 + 0
            somite 10 + 0
            somite 11 + 0
            somite 12 + 0
            somite 13 + 0
            somite 14 + 0
            somite 15 + 0
            somite 16 + 0
            somite 17 + 0
            somite 18 + 0
            somite 19 + 0
            somite 2 + 0
            somite 20 + 0
            somite 21 + 0
            somite 22 + 0
            somite 23 + 0
            somite 24 + 0
            somite 25 + 0
            somite 26 + 0
            somite 27 + 0
            somite 28 + 0
            somite 29 + 0
            somite 3 + 0
            somite 30 + 0
            somite 4 + 0
            somite 5 + 0
            somite 6 + 0
            somite 7 + 0
            somite 8 + 0
            somite 9 + 0
            somite border + 0
            tail somite 0
            trunk somite + 0
Path 2
Term Annotations click to browse term
  UBERON ontology 0
    anatomical entity 0
      material anatomical entity 0
        anatomical structure 0
          multicellular anatomical structure 0
            multicellular organism 0
              organism subdivision 0
                main body axis 0
                  body proper 0
                    trunk 0
                      trunk mesenchyme 0
                        trunk paraxial mesoderm 0
                          presumptive segmental plate 0
                            presomitic mesoderm 0
                              somite 0
                                dermomyotome + 0
                                head somite + 0
                                sclerotome + 0
                                somite 1 + 0
                                somite 10 + 0
                                somite 11 + 0
                                somite 12 + 0
                                somite 13 + 0
                                somite 14 + 0
                                somite 15 + 0
                                somite 16 + 0
                                somite 17 + 0
                                somite 18 + 0
                                somite 19 + 0
                                somite 2 + 0
                                somite 20 + 0
                                somite 21 + 0
                                somite 22 + 0
                                somite 23 + 0
                                somite 24 + 0
                                somite 25 + 0
                                somite 26 + 0
                                somite 27 + 0
                                somite 28 + 0
                                somite 29 + 0
                                somite 3 + 0
                                somite 30 + 0
                                somite 4 + 0
                                somite 5 + 0
                                somite 6 + 0
                                somite 7 + 0
                                somite 8 + 0
                                somite 9 + 0
                                somite border + 0
                                tail somite 0
                                trunk somite + 0
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