Fig. 1.

Genome-wide genetic diversity as measured by SNP abundance along each linkage group between reference cultivar Tanjil and nine re-sequenced cultivars of Lupinus angustifolius. Twenty linkage groups (SLG) were displayed in a circle. The inner number was SLG index and the outer was physical position (Mb). The circular histograms from circular 1 to 9 with different filling colour were SNP frequency distributions of nine cultivars in whole genome and the response relationship was given in the core area. Higher peaks indicated larger number of SNPs in the interval and lower troughs meant low abundance of SNP. The SNP frequency was counted in non-overlapping 100 kb intervals along each chromosome