Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


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 segmentation clock
go back to main search page
Accession:MP:0012669 term browser browse the term
Definition:anomaly or loss of the oscillatory mechanism governed by periodic shifts in gene expression and operating in the presomitic mesoderm that drives the regular periodicity with which somites are formed in the course of vertebrate segmentation. The total number of somites formed and the periodicity with which they are produced are species-specific parameters (e.g. humans have 33 somites with a somitogenesis period of approximately 6 hours while mice have 65 somites with a period of approximately 2 hours)

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  mammalian phenotype 5380
    embryo phenotype 6
      abnormal embryo morphology 2
        abnormal embryonic tissue morphology 1
          abnormal somite development 1
            abnormal somite segmentation clock 0
              prolonged somite segmentation clock period 0
paths to the root