| Population | Person numbers for investigation | JK gene frequency |
| The Han nationality (Shanghai, China) | 200 | 0 |
| The Uighur nationality | 221 | 0 |
| Overseas Chinese (New York) | 103 | 0 |
| The Dong nationality (Guangxi, China) | 201 | 0 |
| The Japanese | 100 | 0 |
| The Brazil Indians | 88 | 0.2453 |