Map Position of PAR2 Genes in Different Mammalian Species
| Location in | Time added to X (MY) | |||||||
| human | apes | lemur | mouse | cat | wallaby | |||
| Divergence from human (MY) | 15 | 60 | 70 | 80 | 130 | |||
| HSPRY3 | X/Y | X | X | X | X | 3 | 80–130 | |
| PAR2 Genes | SYBL1 | X/Y | X | X | X + A | ? | X | >130 |
| IL9R | X/Y + A | X | X + A | 11 | A | 1 | 60–70 | |
| CXYorfl | X/Y + A | X + A | X | 3 | 70–130 | |||
[i] MY indicates million years
[ii] A indicates localization on an autosome(s)
[iii] ? indicates no positive identified.