Weedy rice is unintended legacy of Green Revolution

Weedy rice is a feral form of rice that infests paddies worldwide
and aggressively outcompetes cultivated varieties. A new study led
by biologists at Washington University in St. Louis shows that weed
populations have evolved multiple times from cultivated rice, and a
strikingly high proportion of contemporary Asian weed strains can
be traced to a few Green Revolution cultivars that were widely
grown in the late 20th century.
Source: *FS – All – Science News 2 Net
Weedy rice is unintended legacy of Green Revolution