tracheal pit [FBbt_00005036]

Deep and narrow pit formed by the invagination of a tracheal placode in a late extended germ band embryo. Invagination of the placode begins during stage 11. Branches begin to bud from the pit during stage 11, with a dorsal and ventral stem being apparent by mid-stage 12. The pit closes over during stage 13. There are 10 pairs of tracheal pits - one pair in each tracheal metamere (each segment from T2 to A8). Pits are located in the central one third of each parasegment, with the most anterior in parasegment 4 and the most posterior in parasegment 14. Note, some authors refer to tracheal pits as tracheal sacs. This ontology avoids this nomenclature in order to avoid confusion with terms referring to the tracheal air sacs of the adult.
Tags:

Open tracheal pit in VFB

VFB Term Json

{
    "term": {
        "core": {
            "iri": "http://purl.obolibrary.org/obo/FBbt_00005036",
            "symbol": "",
            "types": [
                "Entity",
                "Anatomy",
                "Class"
            ],
            "short_form": "FBbt_00005036",
            "label": "tracheal pit"
        },
        "description": [
            "Deep and narrow pit formed by the invagination of a tracheal placode in a late extended germ band embryo. Invagination of the placode begins during stage 11. Branches begin to bud from the pit during stage 11, with a dorsal and ventral stem being apparent by mid-stage 12. The pit closes over during stage 13. There are 10 pairs of tracheal pits - one pair in each tracheal metamere (each segment from T2 to A8). Pits are located in the central one third of each parasegment, with the most anterior in parasegment 4 and the most posterior in parasegment 14."
        ],
        "comment": [
            "Note, some authors refer to tracheal pits as tracheal sacs. This ontology avoids this nomenclature in order to avoid confusion with terms referring to the tracheal air sacs of the adult."
        ]
    },
    "query": "Get JSON for Class",
    "version": "44725ae",
    "parents": [
        {
            "symbol": "",
            "iri": "http://purl.obolibrary.org/obo/FBbt_00005037",
            "types": [
                "Entity",
                "Anatomy",
                "Class"
            ],
            "short_form": "FBbt_00005037",
            "label": "tracheal primordium"
        }
    ],
    "relationships": [],
    "xrefs": [],
    "anatomy_channel_image": [],
    "pub_syn": [
        {
            "synonym": {
                "scope": "has_exact_synonym",
                "label": "tracheal sac",
                "type": ""
            },
            "pub": {
                "core": {
                    "symbol": "",
                    "iri": "http://flybase.org/reports/FBrf0147036",
                    "types": [
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                        "Individual",
                        "pub"
                    ],
                    "short_form": "FBrf0147036",
                    "label": "Ebner et al., 2002, Gene 287(1-2): 55--66"
                },
                "FlyBase": "",
                "PubMed": "11992723",
                "DOI": "10.1016/S0378-1119(01)00895-2"
            }
        },
        {
            "synonym": {
                "scope": "has_exact_synonym",
                "label": "embryonic tracheal pit",
                "type": ""
            },
            "pub": {
                "core": {
                    "symbol": "",
                    "iri": "http://flybase.org/reports/Unattributed",
                    "types": [
                        "Entity",
                        "Individual",
                        "pub"
                    ],
                    "short_form": "Unattributed",
                    "label": ""
                },
                "FlyBase": "",
                "PubMed": "",
                "DOI": ""
            }
        }
    ],
    "def_pubs": [
        {
            "core": {
                "symbol": "",
                "iri": "http://flybase.org/reports/FBrf0064787",
                "types": [
                    "Entity",
                    "Individual",
                    "pub"
                ],
                "short_form": "FBrf0064787",
                "label": "Manning and Krasnow, 1993, Bate, Martinez Arias, 1993: 609--685"
            },
            "FlyBase": "",
            "PubMed": "",
            "DOI": ""
        },
        {
            "core": {
                "symbol": "",
                "iri": "http://flybase.org/reports/FBrf0089570",
                "types": [
                    "Entity",
                    "Individual",
                    "pub"
                ],
                "short_form": "FBrf0089570",
                "label": "Campos-Ortega and Hartenstein, 1997, The embryonic development of Drosophila melanogaster. 2nd ed. "
            },
            "FlyBase": "",
            "PubMed": "",
            "DOI": ""
        }
    ]
}