variant_collection
   |__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