oogenesis stage S13A [FBdv_00005279]
Oogenesis stage during which 12-15 nurse cell nuclei remain at the anterior of the oocyte. At this stage, the oocyte nucleus has reached its maximum volume and its chromosomes are compressed into a 5-7 micrometer karyosome. Temporal ordering number - 10210. An alternative division of stage 13 into two sub-stages, A and B, has been defined on the basis of chorion development (see FBrf0043885). This ontology uses an alternative subdivision based on nurse cell nucleus number and oocyte meiosis, as the former at least, is easier to score than chorion ultrastructure.
Note
This page displays the raw VFB json record for this term. Please use the link below to open the term inside the Virtual Fly Brain viewerOpen oogenesis stage S13A in VFB
VFB Term Json
{
"term": {
"core": {
"iri": "http://purl.obolibrary.org/obo/FBdv_00005279",
"symbol": "",
"types": [
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"Class"
],
"short_form": "FBdv_00005279",
"label": "oogenesis stage S13A"
},
"description": [
"Oogenesis stage during which 12-15 nurse cell nuclei remain at the anterior of the oocyte. At this stage, the oocyte nucleus has reached its maximum volume and its chromosomes are compressed into a 5-7 micrometer karyosome."
],
"comment": [
"Temporal ordering number - 10210. An alternative division of stage 13 into two sub-stages, A and B, has been defined on the basis of chorion development (see FBrf0043885). This ontology uses an alternative subdivision based on nurse cell nucleus number and oocyte meiosis, as the former at least, is easier to score than chorion ultrastructure."
]
},
"query": "Get JSON for Class",
"version": "44725ae",
"parents": [
{
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/FBdv_00005259",
"types": [
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"preferred_root"
],
"short_form": "FBdv_00005259",
"label": "developmental stage"
}
],
"relationships": [
{
"relation": {
"iri": "http://purl.obolibrary.org/obo/FBdv_00018001",
"label": "substage_of",
"type": "substage_of"
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"object": {
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/FBdv_00005278",
"types": [
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],
"short_form": "FBdv_00005278",
"label": "oogenesis stage S13"
}
},
{
"relation": {
"iri": "http://purl.obolibrary.org/obo/RO_0002087",
"label": "immediately_preceded_by",
"type": "immediately_preceded_by"
},
"object": {
"symbol": "",
"iri": "http://purl.obolibrary.org/obo/FBdv_00005277",
"types": [
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],
"short_form": "FBdv_00005277",
"label": "oogenesis stage S12C"
}
}
],
"xrefs": [],
"anatomy_channel_image": [],
"pub_syn": [],
"def_pubs": [
{
"core": {
"symbol": "",
"iri": "http://flybase.org/reports/FBrf0029744",
"types": [
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],
"short_form": "FBrf0029744",
"label": "Puro and Nokkala, 1977, Chromosoma 63(3): 273--286"
},
"FlyBase": "",
"PubMed": "",
"DOI": ""
}
]
}
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