We have changed the chimpanzee chromosome numbering to match the new primate standard proposed by E.H. McConkey (Cytogenetics and Genome Research, 105:157-158) and endorsed by the International Chimpanzee Genome Consortium. The benefit of this standard is each of the main primate chromosomes are named after their orthologous human chromosome, with 2A and 2B representing the two chromosomes which fused in humans to form chromosome 2. This is in-sync now with the chromosome numbering on NCBI but (currently) out of sync with the chromosome numbering on UCSC, which has the old numbering.
We expect that future chimpanzee assemblies and other primate assemblies will use this naming.
Owing to the change in naming we have designated this assembly CHIMP1A to distinguish it from CHIMP1. None of the sequence has changed, only the chromosomal names.
new (current) | old |
---|---|
1 | 1 |
2A | 12 |
2B | 13 |
3 | 2 |
4 | 3 |
5 | 4 |
6 | 5 |
7 | 6 |
8 | 7 |
9 | 11 |
10 | 8 |
11 | 9 |
12 | 10 |
13 | 14 |
14 | 15 |
15 | 16 |
16 | 18 |
17 | 19 |
18 | 17 |
19 | 20 |
20 | 21 |
21 | 22 |
22 | 23 |
X | X |
Y | Y |