TG and Down syndrome: To compare our data with data obtained in other studies, we considered the most recently published information on genes and QTL mapping for these traits (PH, HD, PC, TKW) and for the domestication syndrome, which includes genes for photoperiod insensitivity (Ppd), vernalisation (Vrn), earliness per se (Eps), dwarfism (Rht), grain protein content (Gpc), and domestication syndrome traits (Tg, Br, sog, Q locus).