Figure 2

LD plot with haploblock structure and LD decay within the Md-PG1 region. The LD image is based on r² values (a), the darker the colour the higher the value. In the upper part, the number of polymorphic sites and the markers considered for the computation are indicated. The four haploblocks are highlighted in grey. On the top the physical position of the markers on the Md-PG1 contig are also illustrated, on which are distinguished the three main portions: 3 kb upstream, gene full length and the 10 kb downstream. Markers in bold are those included in the four haploblocks. Panel “b” shows the scatterplot of the LD decay of the linked marker pairs on chromosome 10 as a function of the physical distance (bp). The red line indicates the data fitting line. LD threshold, based on the 95^th percentile of the unlinked marker pair distribution is superimposed on the scatterplot and represented by a grey dashed line.