The single-origin model suggests that indica and japonica were both domesticated from the wild rice O. rufipogon.
这一同源模型说明籼稻和粳稻是由同一种普通野生稻驯化而来的。
2
The second solution is a large-grained one that returns all the information you need in a single invocation and ensures minimal effects due to network latency and system I/O.