Uber Anatomy Ontology

Last uploaded: November 27, 2018
Preferred Name

hypochord

Synonyms

ipochord

subnotochordal rod

Definitions

The hypochord is a transient rod-like structure in the embryos of fish, lampreys and amphibians that is located immediately ventral to the notochord. The hypochord may play a role in positioning the dorsal aorta[GO]. Unlike in frogs and axolotl, the hypochord does not appear to be endodermally derived[ZFA]. near metamorphosis the hypochord fuses to the coccyx, thereby forming the urostyle[AAO]

ID

http://purl.obolibrary.org/obo/UBERON_0003058

comment

Unlike in frogs and axolotl, the hypochord does not appear to be endodermally derived[ZFA]. near metamorphosis the hypochord fuses to the coccyx, thereby forming the urostyle[AAO]

database_cross_reference

EFO:0003475

VHOG:0000081

TAO:0000031

ZFA:0000031

AAO:0000733

XAO:0000056

definition

The hypochord is a transient rod-like structure in the embryos of fish, lampreys and amphibians that is located immediately ventral to the notochord. The hypochord may play a role in positioning the dorsal aorta[GO].

develops_from

http://purl.obolibrary.org/obo/UBERON_0006599

external_definition

Unsegmented ventral structure in the caudal region of anuran larvae; near metamorphosis the hypochord fuses to the coccyx, thereby forming the urostyle.[AAO]

A transient rod-like structure which is endodermally derived and located immediately ventral to the notochord. The hypochord is thought to play a role in positioning the dorsal aorta. Eriksson and Lofberg, 2000.[TAO]

has_exact_synonym

ipochord

subnotochordal rod

has_obo_namespace

uberon

homology_notes

In other words, we identified variations in gene expression patterns that may contribute to a molecular basis of evolutionary variation of axial structures between Teleostei and Mammalia in the determination of body axis. As already mentioned, one such difference is illustrated by the hypochord present in lower vertebrates but absent in higher animals. Perhaps, Tbx-b and Tbx-c are involved in the mechanisms underlying the formation of this organ that were lost during later evolution leading to the disappearance of the hypochord itself, similarly to other organs, such as the lateral line.[uncertain][VHOG]

id

UBERON:0003058

immediate transformation of

http://purl.obolibrary.org/obo/UBERON_0006599

in_subset

http://purl.obolibrary.org/obo/uberon/core#efo_slim

http://purl.obolibrary.org/obo/uberon/core#dubious_grouping

label

hypochord

notation

UBERON:0003058

only_in_taxon

http://purl.obolibrary.org/obo/NCBITaxon_7711

prefLabel

hypochord

treeView

http://purl.obolibrary.org/obo/UBERON_0006599

subClassOf

http://purl.obolibrary.org/obo/UBERON_0000479

http://purl.obolibrary.org/obo/CARO_0000000

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Delete Mapping To Ontology Source
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 UPHENO LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/ZFA_0000031 ZFA LOOM
http://purl.obolibrary.org/obo/XAO_0000056 XAO LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 CCONT LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 CCONT SAME_URI
http://purl.obolibrary.org/obo/UBERON_0003058 GO-PLUS LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 GO-PLUS SAME_URI
http://purl.obolibrary.org/obo/UBERON_0003058 GO-PLUS LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 GO-PLUS SAME_URI
http://purl.obolibrary.org/obo/UBERON_0003058 EFO LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 EFO SAME_URI
http://purl.obolibrary.org/obo/UBERON_0003058 UPHENO LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 UPHENO SAME_URI
http://purl.obolibrary.org/obo/UBERON_0003058 EFO LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 EFO SAME_URI
http://purl.obolibrary.org/obo/UBERON_0003058 NIFSTD LOOM
http://purl.obolibrary.org/obo/UBERON_0003058 NIFSTD SAME_URI
http://purl.obolibrary.org/obo/TAO_0000031 TAO LOOM
http://purl.obolibrary.org/obo/VHOG_0000081 VHOG LOOM