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Table 3 Total number of interchromosomal rearrangements involving microchromosomes in 21 avian species compared to chicken

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

Species Total number of interchromosomal changes involving macro- and microchromosomes Interchromosomal changes between microchromosomes only Haploid chromosome number (difference fromn = 40)
Adélie penguin (Pygoscelis adeliae) 6 0 48 (8)
American crow (Corvus brachyrhynchos) 1 0 40 (0)
Common cuckoo (Cuculus canorus) 1 0 ?
Pekin duck (Anas platyrhynchos) 0 0 40 (0)
Little egret (Egretta garzetta) 4 1 33 (7)
Emperor penguin (Aptenodytes forsteri) 5 0 36 (5)
Peregrine falcon (Falco peregrinus) 6 4 25 (15)
Zebra finch (Taeniopygia guttata) 0 0 40 (0)
Hoatzin (Ophisthocomus hoazin) 3 0 ?
Anna’s hummingbird (Calypte anna) 0 0 37 (3)
Crested ibis (Nipponia nippon) 6 0 34 (6)
Killdeer (Charadrius vociferous) 1 0 38 (2)
Golden collared manakin (Manacus vitellinus) 0 0 ?
Medium ground finch (Geospiza fortis) 0 0 ?
Ostrich (Struthio camelus) 11 0 40 (0)
Budgerigar (Melopsittacus undulates) 11 2 29 (11)
Rock dove (Columba livia) 1 0 40 (0)
Chimney swift (Chaetura pelagica) 1 0 ?
Turkey (Meleagris gallopavo) 2 0 40 (0)
Downy woodpecker (Picoides pubescens) 4 1 ?
Chicken (Gallus gallus) 0 0 39 (1)
  1. As detected by bioinformatic approaches [37] and compared to the published haploid number of chromosomes in each species [9]. For counts of all interchromosomal rearrangements in the bird genomes see [37].