Why Wheat Can't Survive Without Us

How wheat was domesticated comes down to a single mutation that stopped its ear from shattering 10,000 years ago. From wild emmer and einkorn on Karacadag Mountain to the brittle rachis genes BTR1A and BTR1B, the film traces how early sickle harvesting selected the solid ear. It explains the Q and Tg genes, naked grain and the hexaploid bread wheat that now feeds a fifth of humanity but cannot reseed itself without humans.