The 12 linkage groups (Sal01-12) in yellow mustard. For each linkage group, the ILP and SSR markers were shown on the right side, and the marker position in centiMorgan on the left side. The font colours of the markers and the colours of the highlighted conserved blocks indicated their chromosomal origin in A. thaliana. For each conserved block, the name was indicated on the left side and scattered markers were on the right side. The QTL for erucic acid content (ERU) co-localized with the FAE1 gene on Sal03. The QTLs for HBEN, IND, HIND and HBUT were mapped to Sal02. The other QTL for HBUT was mapped to Sal11. 1-LOD and 2-LOD supporting intervals of each QTL were marked by thick and thin bars, respectively.