5,200-year-old cereal grains from the eastern Altai Mountains redate the trans-Eurasian crop exchange

Abstract

Zhou, Xinying, Jianjun Yu, Robert Nicholas Spengler, Hui Shen, Keliang Zhao, Junyi Ge, Yige Bao, Junchi Liu, Qingjiang Yang, Guanhan Chen, Peter Weiming Jia, and Xiaoqiang Li (2020) 5,200-year-old cereal grains from the eastern Altai Mountains redate the trans-Eurasian crop exchange, Nature Plants 6: 78–87.

Wheat and barley evolved from large-seeded annual grasses in the arid, low latitudes of Asia; their spread into higher elevations and northern latitudes involved corresponding evolutionary adaptations in these plants, including traits for frost tolerance and shifts in photoperiod sensitivity. Continue reading