Unique QTL for tocopherol content and composition calculated with meta-analysis in the TNDH and RC-F2 populations in all environments.

At, A. thaliana; α, α-tocopherol content; γ, γ-tocopherol content; t, total tocopherol content; α/γ, tocopherol composition; Pos, peak position; CI, confidence interval of the QTL region; LOD, LOD score; R2, explanation of phenotypic variation; A, additive effect; WH, Wuhan 2003–004 growing season; JZ, Jingzhou 2003–2004 growing season; WN, Weinan 2004–2005 growing season.*The A. thaliana gene is homologous to the corresponding B. napus gene.