Figure 1

Demarcation of the LG I QTL region. (A) The genetic map of LG I [47] shows the markers that mapped close to the QTL region. (B) The fine map of the QTL [32] shows the QTL position in the segregating region between SSR marker Satt239 and AFLP marker ACG9b. (C) The physical map of the QTL region shows where the BACs were anchored to the SSR markers (Satt239, Satt700, Sat_174, Sat_219, and Satt496). BACs shown as bold lines were sequenced. BACs shown as thin lines were not sequenced; only BAC end sequences were generated. (D) Demarcation of the QTL region on chromosome 20 (Gm20) using additional SSR markers. The new SSR markers were named ssrpqtl_1 through ssrpqtl_42 (in bold) according to ascending position on chromosome 20 (see also Additional file 1: Table S1). The position of the LG I protein QTL region is demarcated between 24.54 Mb (Sat_174) and 32.92 Mb (ssrpqtl_38). (E) The QTL region highlighted on Chromosome 20. The dark oval represents the position of the centromere.