Figure 2

Circos diagram showing the physical map of twenty-one wheat chromosomes. (a) The physical scale (Mbp) of the A (red), B (blue) and D (green) genome chromosomes of wheat. Chromosomes are displayed by size proportioned bars in the outer circle. The position of genes encoding important agronomic traits are marked under the bars (see text for further details). (b) The chromosome position and frequency of polymorphic SNPs (yellow dots) found in Central European landraces compared to modern Western varieties. (c) The chromosome position and frequency of polymorphic SNPs (dark blue dots) found in landraces compared to modern varieties. (d) Nucleotide diversity (π) of Central European landraces compared to modern varieties in 3 Mb window intervals (light brown). (e) Bar chart showing the total number of SNPs compared to the ‘MV Ménrót’ reference in modern varieties (orange) and landraces (light blue). (f) Nucleotide diversity (π) of Central European landraces in 3 Mb window intervals (purple). (g) Marker density of polymorphic SNPs based on the ‘MV Ménrót’ reference in modern varieties (grey) and landraces (dark blue). Tracks are marked alphabetically (a-g) from top to bottom.