Fig. 1

Genome-wide linkage disequilibrium (LD) distribution and LD decay. a Scatter plot of LD values of intra-chromosomal pairwise loci against physical distance (Mb). LD decay was fitted with the locally weighted polynomial regression-based (LOESS) curve by genome and for genome-wide LD. b LOESS curves fitted by chromosome (only distance to 200 Mb is shown); c Number of SNP pairs in LD distributed along physical distance intervals; d) LD (r²) values frequency by chromosome, genome and whole genome