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| Term | fat body/gonad primordium | ID (Ontology) | FBbt:00005520 (Fly Anatomy) | ||||||||||||||||||||||||
| Definition | Primordium which develops into the fat body and gonadal sheath. The cells that comprise it are specified from stage 10 (Jemc, 2010), though the first morphological sign of its development comes during stage 11, when the outer of the two layers of the trunk mesoderm thickens medially to become 2-3 cells thick. Segmentally arranged groups of cells split off from inner most layer of this thickening, becoming sandwiched between the somatic muscle primordium and the circular visceral muscle primordium. By stage 13, these segmental clusters have fused into continuous columns on either side of the embryo. These bands split into dorsal and ventral subdivisions. A sub-population of cells in the dorsal subdivision in parasegments 10-12 split off to form the gonadal sheath primordium during stage 14-15. The other cells then form the fat body primordium proper.[ FlyBase:FBrf0089570 FlyBase:FBrf0092473 FlyBase:FBrf0216740 ] | ||||||||||||||||||||||||||
| Also Known As | "bipotential lateral mesoderm" | ||||||||||||||||||||||||||
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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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embryo |__developing embryonic structure_____ extended germ band embryo | |__late extended germ band embryo_____| developing material anatomical entity | |__developing embryonic structure_____| |__primordium_________________________| trunk mesoderm derivative | |__somatic trunk mesoderm derivative__| fat body/gonad primordium 164 rec. |__somatic cell of fat body/gonad primordium |
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developing embryonic structure primordium somatic trunk mesoderm derivative |
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| Part of | late extended germ band embryo | ||
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