Upland rice was bred using natural variation within rice populations. C4 rice will require much more complex targeted genetic design. However, we are also harne

Upland rice was bred using natural variation within rice populations. C4 rice will require much more complex targeted genetic design. However, we are also harnessing natural variation, and are doing massive-scale screens of natural cultivars. The idea is that we want to do the engineering the in the most C4-like rice that exists.