FB2024_03 , released June 25, 2024
FB2024_03 , released June 25, 2024
CV Term Report
Help Close All Open All
General Information
Term protocerebral bridge ID (Ontology) FBbt:00003668 (Fly Anatomy)
Definition A handle bar-shaped synaptic neuropil located just posterior to the fan-shaped body. Its lateral edge ends at the posterior end of the inferior clamp (ICL) near the medial equatorial fascicle (MEF). A row of 18 connected slices (9 on each side of the midline, numbered 1-9 from medial to lateral) that forms a dorso-posteriorly located part of the central complex embedded in the cortex between the calyces of the two mushroom bodies.[ FlyBase:FBrf0049409 FlyBase:FBrf0205148 FlyBase:FBrf0213955 FlyBase:FBrf0224194 FlyBase:FBrf0227801 ]
Also Known As "PB" ; "PCB"
Comment The identification of the most medial slice (slice 1) by Wolff et al. (2015) meant that the domain that was previously called slice 1 corresponds in fact to slice 2. Each of the two neighboring slices (2-3, 4-5, 6-7, 8-9) are associated more closely because small-field columnar neurons innervate the fan-shaped body via the protocerebral bridge, and these neurons are generated by the same neuroblasts, forming four groups on each side of the midline, from lateral to medial: segment pair W, X, Y and Z (Boyan and Williams et al., 2011; Ito and Awasaki, 2008).
Links to Extrernal Ontologies
VFB:FBbt_00003668
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      18
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      14
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       5
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 protocerebral bridge (all annotations which use CV term, excluding "NOT" statements)      19     18     16    720
Spanning Tree (Parents/Children)
Only view relationship: 
adult cerebrum
 |__adult central complex_______
multi-cell-component structure  |
 |__synaptic neuropil domain____|
adult protocerebrum             |
 |__adult central complex_______|
synaptic neuropil               |
 |__synaptic neuropil domain____|
synaptic neuropil block         |
 |__adult central complex_______|
                                protocerebral bridge  774 rec.
                                 |__protocerebral bridge glomerulus 3 rec.
                                     |__protocerebral bridge glomerulus 1
                                     |__protocerebral bridge glomerulus 2
                                     |__protocerebral bridge glomerulus 3
                                     |__protocerebral bridge glomerulus 4
                                     |__protocerebral bridge glomerulus 5
                                     |__protocerebral bridge glomerulus 6
                                     |__protocerebral bridge glomerulus 7
                                     |__protocerebral bridge glomerulus 8
                                     |__protocerebral bridge glomerulus 9 1 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a synaptic neuropil domain
Develops from embryonic/larval protocerebral bridge - primordial
Part of adult central complex
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts
VFB:FBbt_00003668