1. Badr, A. et al. On the origin and domestication history of barley (Hordeum vulgare). Mol. Biol. Evol. 17, 499–510 (2000).
2. Newman, C. W. & Newman, R. K. A brief history of barley foods. Cereal Foods World 51, 4–7 (2006).
3. Hsu, T. Origin and phylogeny of cultivated barley with reference to the discovery of Ganze wild two-rowed barley Hordeum spontaneum C. koch. Acta Genet. Sin. 2, 006 (1975).
4. Ma, D. et al. The classification and distribution of wild barley in the Tibet Autonomous Region. Sci. Agric. Sin. 20, 1–6 (1987).
5. Ma, D. The research on classification and origin of cultivated barley in Tibet Autonomous Region. Sci. Agric. Sin. 21, 7–14 (1988).