FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term chromosome_structure_variation ID (Ontology) SO:1000183 (Sequence Ontology)
Definition An alteration of the genome that leads to a change in the structure or number of one or more chromosomes.
Also Known As "chromosome structure variation" ; "snpEff:CHROMOSOME_LARGE_DELETION"
Comment
Links to External Ontologies
SO.org
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Aberrations (FBab)  CLASS_OF_ABERRATION       7
Aberrations (FBab)  FEATURE_TYPE      88
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Aberrations
 chromosome_structure_variation (all annotations which use CV term, excluding "NOT" statements)      88
Spanning Tree (Parents/Children)
Only view relationship: 
variant_collection_____________
chromosomally_aberrant_genome__|
                               chromosome_variation
                                |__chromosome_structure_variation  22257 rec.
                                    |__aneuploid_chromosome 260 rec.
                                    |   |__inversion_derived_aneuploid_chromosome
                                    |__autosynaptic_chromosome 310 rec.
                                    |   |__dextrosynaptic_chromosome 111 rec.
                                    |   |__laevosynaptic_chromosome 132 rec.
                                    |__chromosomal_duplication 3367 rec.
                                    |   |__free_duplication(+) 321 rec.
                                    |   |__insertional_duplication(+) 323 rec.
                                    |   |__interchromosomal_duplication 2414 rec.
                                    |   |__intrachromosomal_duplication(+) 560 rec.
                                    |__chromosomal_transposition 1036 rec.
                                    |   |__interchromosomal_transposition(+) 850 rec.
                                    |   |__intrachromosomal_transposition(+) 174 rec.
                                    |__complex_structural_alteration
                                    |   |__complex_chromosomal_rearrangement
                                    |__compound_chromosome 220 rec.
                                    |   |__compound_chromosome_arm 76 rec.
                                    |   |__hetero_compound_chromosome 101 rec.
                                    |   |__homo_compound_chromosome 40 rec.
                                    |__free_chromosome_arm 35 rec.
                                    |__interchromosomal_mutation 4912 rec.
                                    |   |__bipartite_duplication 4 rec.
                                    |   |__chromosomal_translocation(+) 4096 rec.
                                    |   |__interchromosomal_transposition(+) 850 rec.
                                    |__intrachromosomal_mutation 14540 rec.
                                    |   |__chromosomal_deletion(+) 9639 rec.
                                    |   |__chromosomal_inversion(+) 4487 rec.
                                    |   |__chromosome_fission
                                    |   |__intrachromosomal_duplication(+) 560 rec.
                                    |   |__ring_chromosome(+) 37 rec.
                                    |__uncharacterized_chromosomal_mutation
                                        |__partially_characterized_chromosomal_mutation
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Is a chromosome_variation
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Synonyms
  • "chromosome structure variation" EXACT
    "snpEff:CHROMOSOME_LARGE_DELETION" EXACT VAR
Secondary IDs
hide External Crossreferences & Linkouts
http://snpeff.sourceforge.net/SnpEff_manual.html