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The regions of origin of the 15 samples.
| No. | Region | No. | Region |
|---|---|---|---|
| S1 | Yuxi, Yunnan | S9 | Xiangxi, Hunan |
| S2 | Chuxiong, Yunnan | S10 | Xinxiang, Henan |
| S3 | Dali, Yunnan | S11 | Yulin, Guangxi |
| S4 | Lijiang, Yunnan | S12 | Jinzhai, Anhui |
| S5 | Luotian, Hubei | S13 | Chengdu, Sichuan |
| S6 | Shennongjia, Hubei | S14 | Suining, Sichuan |
| S7 | Yundu, Guizhou | S15 | Yuexi, Anhui |
| S8 | Fujian |
