Table 2.
Comparison of human-mouse and human-rat breakpoints versus segmental duplication content
| Duplicated | Unduplicated | Total | |||
| Number | % | Number | % | Number | |
| Mouse-specific | 29 | 29.9 | 68 | 70.1 | 97 |
| Shared breakpoint | 110 | 34.2 | 212 | 65.8 | 322 |
| Undetermined* | 12 | 28.6 | 30 | 71.4 | 42 |
Mouse-human breakpoints were classified as either shared with rat or specific to the mouse assembly. No significant difference in segmental duplication content was found when shared and mouse-specific breakpoints were compared. Chi-squared test (χ2 = 0.5397, p = 0.4626). *Forty-two human-mouse breakpoints showed no evidence of conserved synteny within 1 Mb of the breakpoint when the human and rat genomes were compared.