title: Correlations between tocopherol and fatty acid components in germplasm collections of Brassica oilseeds.
abstract: To date, little is known about the correlations among the tocopherol (T) and fatty acid (FA) components in rapeseed oils. In the current study, a germplasm collection of landraces from the species  Brassica juncea ,  Brassica rapa , and  Brassica napus  and a collection of low erucic acid (EA) breeding lines from B. napus were analyzed for FA and T contents. In the groups comprising landraces, the most notable correlation was the significantly positive one between α-T and the sum of C18:1 and C18:2, whereas neither positive correlations were found between α-T and C18:3 nor were positive correlations observed between α-T and very long chain FAs (VLCFA). Hardly any association between γ-T and FA components was observed, indicating the possible function of α-T beyond its antioxidant property. The complexity of correlation between T and FA components in Brassica oils may arise from the role of α-T in the FA metabolism of endoplasmic reticulum (ER).
authors.affiliation: Key Laboratory of Crop Germplasm Resources of Zhejiang Province, College of Agriculture and Biotechnology of Zhejiang University, Hangzhou 310058, People's Republic of China.
authors.forename: Yuanlong
authors.initials: Y
authors.lastname: Li
authors.forename: Nazim
authors.initials: N
authors.lastname: Hussain
authors.forename: Lingmin
authors.initials: L
authors.lastname: Zhang
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Chen
authors.forename: Essa
authors.initials: E
authors.lastname: Ali
authors.forename: Lixi
authors.initials: L
authors.lastname: Jiang
mesh_terms: D001937:Brassica / Q000196:embryology*; D005227:Fatty Acids / Q000032:analysis*; D012639:Seeds / Q000737:chemistry*; D024505:Tocopherols / Q000032:analysis*
chemical_list: D005227:Fatty Acids; D024505:Tocopherols