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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:abnormal somite border morphology
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Accession:MP:0012728 term browser browse the term
Definition:any structural anomaly of the anatomical surface separating somites; somite formation requires the physical separation of somitic tissue from the initially continuous presomitic mesoderm (PSM), coalescence of cells in the forming somite, and the establishment of a stable border between the somite and the PSM; when a somite forms in the anterior end of the PSM, an intersomitic boundary (also called a fissure, gap, or cleft) emerges, and it is rapidly followed by a mesenchymal-to-epithelial transition of cells that face a forming gap
Synonyms:exact_synonym: abnormal inter-somite border morphology;   abnormal intersomitic boundary morphology;   abnormal intersomitic fissure morphology;   abnormal segmental border morphology;   abnormal somite border cell morphology;   abnormal somite boundary morphology

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  mammalian phenotype 5417
    embryo phenotype 11
      abnormal embryo morphology 2
        abnormal embryonic tissue morphology 1
          abnormal somite development 1
            abnormal somite border morphology 0
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