Additional file 1: Figure S1.

Decay of linkage disequilibrium of the population of 158 accessions based on 1319 DArT markers. The equation of LD decay was y = −0.01ln(x) + 0.091, the decay of genetic distance is 0.40 cM (r2 = 0.1). The X-axis showed that the genetic distance, The Y-axis showed the r2, the squared allele frequency correlations, which is a measurement of the correlation between a pair of variables.

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Cai et al. BMC Plant Biology 2013 13:35   doi:10.1186/1471-2229-13-35