Accessions used in five experiments and the proportion of variation of each accession derived from the different subpopulations.

The accessions used in each experiment are marked with “x”. “Hetero%” indicates the percentage of heterozygous SNP loci detected from genotyping by 280 SNP markers. Experiment code “2008F, 2009F, 2011F and 2012F” stand for four field experiments carried out between 2008 and 2012. Code “2010G” means the greenhouse experiment in 2010. “Ver” and “C-C” stand for experiment of testing vernalization response and carbohydrate composition of turnip accessions, respectively.
aFT stands for fodder turnips and VT stands for vegetable turnips.
bWUR  =  Wageningen University and Research Center; VIR  =  Vavilov Research Institute of Plant Industry; RSAU  =  Russian State Agrarian University.
Accessions used in five experiments and the proportion of variation of each accession derived from the different subpopulations.