Glycine soja

Glycine soja, known as wild soybean, is an annual plant in the family Fabaceae. It may be treated as a separate species, the closest living relative of the cultivated soybean, Glycine max, an important crop, or as a subspecies of the cultivated soybean, Glycine max subsp. soja.

The plant is native to eastern China, Japan, Korea and far-eastern Russia.

Much work into Aphis glycines resistance in this genus has been done by Hill et al. They found that this species has resistance genetics not found in G. max (cultivated varieties). This may make G. soja useful as a wild relative for introgression of aphid resistance.