Brapa_BLUPs_for_qtlcart

A QTL cartographer input file of floral size and shape traits estimated as genotypic BLUPs for recombinant inbred lines resulting from crosses between Brassica rapa genotypes, R500 and IMB211. The genetic linkage map consists of 1273 SNPs (naming scheme: chromosome_physical.location in B. rapa genome v1.1) across 10 chromosomes, which were identified from RNA-seq reads of expanding apical meristem tissue that was collected from RILs raised in the UW-AES agricultural fields during the summer of 2011. SNP markers were assigned to linkage groups (LG; R/QTL; Broman et al., 2003) based on recombination fractions (maximum rf= 0.32) and LOD scores (minimum LOD= 4.1). We used R/QTL to order markers within LGs, passing the resulting best-supported positions of markers to a ripple function to explore alternative arrangements in a 5-marker sliding window. The resulting linkage map of ten chromosomes has an average distance of 0.79 cM between adjacent markers.