Table 3 Patterns of fusion and fission revealed in the budgerigar, saker falcon, and the ostrich using the chicken genome as a reference
Ancestral chromosome (numbered according to chicken) | Budgerigar | Saker falcon | Ostrich | Chicken | Chicken-ostrich differences | ||
|---|---|---|---|---|---|---|---|
Inter- | Intra- | Inter- | Intra- | Inter- | Inter- | Intra- | |
1 | Fission | 1 | Fission | 4 | 0 | 0 | 0 |
2 | – | 2 | Fission and fusion to GGA21 and 28 | 0 | 0 | 0 | 0 |
3 | Fusion to GGA17 | 3 | Fission | 4 | 0 | 0 | 3 |
4a | – | 0 | – | 2 | 0 | Fusion | 1 |
4b | Fusion to GGA9 | 0 | Fusion to GGA15 | 4 | 0 | 2 | |
5 | Fission and fusion to GGA6 | 1 | Fission and fusion to GGA10 and 20 | 2 | 0 | 0 | 1 |
6 | Fusion to GGA5 | 0 | Fusion to GGA17 | 3 | 0 | 0 | 0 |
7 | Fission and fusion to GGA6 and 5 | 1 | Fusion to GGA13 | 2 | 0 | 0 | 3 |
8 | Fusion to GGA9 | 0 | – | 0 | 0 | 0 | 1 |
9 | Fusion to GGA8 | 1 | – | 0 | 0 | 0 | 0 |
10 | Fusion to GGA12 | 0 | Fusion to GGA5 | 0 | 0 | 0 | 0 |
11 | Fusion to GGA4q | 0 | – | 0 | 0 | 0 | 0 |
12 | Fusion to GGA10 | 1 | Fusion to GGA14 | 0 | 0 | 0 | 0 |
13 | Fusion to GGA20 | 0 | Fusion to GGA7 | 0 | 0 | 0 | 0 |
14 | Fusion to GGA5 | 1 | Fusion to GGA12 and 28 | 1 | 0 | 0 | 1 |
15 | – | 2 | Fusion to GGA4q and 19 | 2 | 0 | 0 | 0 |
16 | No data | No data | No data | No data | No data | No data | No data |
17 | Fusion to GGA3 | 0 | Fusion to GGA6 | 1 | 0 | 0 | 0 |
18 | – | 1 | Fusion to GGA19 | 2 | 0 | 0 | 1 |
19 | – | 0 | Fusion to GGA15 and 18 | 0 | 0 | 0 | 0 |
20 | Fusion to GGA13 | 0 | Fusion to GGA5 | 0 | 0 | 0 | 0 |
21 | – | 0 | Fusion to GGA2 and 23 | 0 | 0 | 0 | 0 |
22 | – | 0 | – | 2 | 0 | 0 | 1 |
23 | – | 2 | Fusion to GGA21 | 2 | 0 | 0 | 0 |
24 | – | 0 | – | 1 | 0 | 0 | 0 |
25 | No data | No data | No data | No data | No data | No data | No data |
26 | – | 0 | – | 2 | 0 | 0 | 0 |
27 | – | 0 | – | 1 | 0 | 0 | 0 |
28 | – | 0 | Fusion to GGA2 and 14 | 1 | 0 | 0 | 0 |
Z | – | 0 | – | 0 | 0 | 0 | 0 |