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| Term | prothoracic gland | ID (Ontology) | FBbt:00001724 (Fly Anatomy) | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Definition | Component of the larval ring gland that is continuous with the corpus cardiacum at its ventroposterior end, encircles the aorta, and surrounds the medially-located corpus allatum at its dorsoanterior end (Dai and Gilbert, 1991; de Velasco et al., 2004; Nassel and Zandawala, 2020). It is composed of very few cells in the late embryo, but these increase in size and number during larval development (de Velasco et al., 2004). It produces ecdysone and is most active in the early wandering third instar (Dai and Gilbert, 1991; Nassel and Zandawala, 2020). During pupal development, its cells separate, shrink and degenerate and none are found attached to the adult corpus allatum or corpus cardiacum after eclosion (Dai and Gilbert, 1991).[ FlyBase:FBrf0053727 FlyBase:FBrf0064803 FlyBase:FBrf0089570 FlyBase:FBrf0179777 FlyBase:FBrf0247015 ] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Also Known As | "PTG" ; "thoracic gland" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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cell cluster organ |__neurohemal organ____________ endocrine system component | |__neurohemal organ____________| ectodermal derivative | |__dorsal ectoderm derivative__| gland | |__neurohemal organ____________| prothoracic gland 257 rec. |
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| Is a |
neurohemal organ dorsal ectoderm derivative |
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| Develops from | prothoracic gland primordium | ||
| Part of | larval ring gland | ||
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