>>636
珠江中流域（現在の広西チワン族自治区）だお。

↓ココの図４−ｂで確認できるお。
Figure 4: Genetic and geographic origins of rice domestication.

A map of rice genome variation reveals the origin
of cultivated rice (2012)
www.nature.com/nature/journal/v490/n7421/full/nature11532.html