The following X-STR markers are used in genealogical DNA testing and other forms of relationship testing.
| STR # | notes | DNA sequence repeat motif | alleles | mutation rate | links | |
|---|---|---|---|---|---|---|
| DXS10011 | ||||||
| DXS10066 | DXS10066 is also known as Penta X-16. | |||||
| DXS10067 | DXS10067 is also known as Penta X-12. | |||||
| DXS10068 | DXS10068 is also known as Penta X-13. | |||||
| DXS10069 | DXS10069 is also known as Penta X-15. | |||||
| DXS10074 | ||||||
| DXS10075 | ||||||
| DXS10079 | ||||||
| DXS10129 | DXS10129 is also known as Penta X-10. | |||||
| DXS10130 | DXS10130 is also known as Penta X-3. | |||||
| DXS10131 | ||||||
| DXS10132 | DXS10132 is also known as Penta X-17. | |||||
| DXS10133 | DXS10133 is also known as Penta X-18. | |||||
| DXS6807 | ||||||
| DXS7132 | ||||||
| DXS7423 | ||||||
| DXS8377 | ||||||
| DXS981 | ||||||
| HPRTB | ||||||
| Penta X-3 | see DXS10130 | - | - | - | - | |
| Penta X-10 | see DXS10129 | - | - | - | - | |
| Penta X-12 | see DXS10067 | - | - | - | - | |
| Penta X-13 | see DXS10068 | - | - | - | - | |
| Penta X-15 | see DXS10069 | - | - | - | - | |
| Penta X-16 | see DXS10066 | - | - | - | - | |
| Penta X-17 | see DXS10132 | - | - | - | - | |
| Penta X-18 | see DXS10133 | - | - | - | - |