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Table 1 Comparative mapping of chicken chromosome paints A–G, and their ostrich and budgerigar orthologs

From: Reconstruction of gross avian genome structure, organization and evolution suggests that the chicken lineage most closely resembles the dinosaur avian ancestor

Chromosome paint ID Chicken chromosome(s) Ostrich orthologs (all microchromosomes) Budgerigar orthologs
A 11 1 pair Fusion as part of chromosome 5
B 10 and 12 2 pairs 2 pairs of microchromosomes (no apparent fissions/fusions at this resolution)
C 13 1 pair 1 pair of microchromosomes (no apparent fissions/fusions at this resolution)
D 13 and 14 1 pair 1 microchromosome pair +1 arm of chromosome 8 = fission and fusion at this resolution
E 10 and 12 2 pairs 1 pair = fusion
F 16, 17 and 18 3 pairs 2 pairs = fusion
G ~5 pairs smaller than 18 No result 3 pairs = 2 fusions (although some signals are weak so may be failure of hybridization)
  1. Note:
  2. Bioinformatic approaches detected further rearrangements that are beyond the resolution of zoo-FISH.
  3. BACs that confirmed these assignments are given in Additional file 1: Table S1.