Genetic and molecular analysis of specific-origin yellow-seeded winter rapeseed ( B . napus L . var . oleifera )

Double low (00) lines of winter yellow-seeded B.napus, displaying stable expression of genes for yellowseedness have been developed. Investigated lines revealed significant reduction of A(cid)D(etergent)F(ibre) and N(eutral)DF, an increase in fat and protein content and variability in yield of seeds. The genetic determination of seed colour and fibre content was investigated. Statistical analyses show high heritability of these traits. Molecular analyses are conducted on two high polymorphic mapping populations of DH-lines by RAPD and AFLP primers to complete characterizations of these lines and identify main QTLs linked to yellow colour and fibre content.