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The Vertebrate Trait Ontology (VT) is being developed as a collaborative effort between the Rat Genome Database at the Medical College of Wisconsin (RGD,, Mouse Genome Informatics at the Jackson Laboratory ( and the Animal QTL database at Iowa State University ( For more information about this vocabulary, or to request additions or changes, please contact us (

Term:gastrointestinal system morphology trait
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Accession:VT:0000462 term browser browse the term
Definition:Any measurable or observable characteristic related to the shape, structure, color or pattern of the components of the system that converts ingested food to nutrients and energy.

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  vertebrate trait 6
    organ system trait 6
      alimentary system trait 0
        gastrointestinal system morphology trait 0
          anus morphology trait + 0
          crop morphology trait + 0
          digestive organ orientation trait + 0
          esophagus morphology trait + 0
          forestomach morphology trait + 0
          gastrointestinal system mass 0
          gizzard morphology trait + 0
          intestine morphology trait + 0
          proventriculus morphology trait + 0
          stomach morphology trait + 0
          tongue morphology trait + 0
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