Figure 2

SNP identification and nucleotide diversity in Amur ide ecotypes. (a) The number of SNPs (positive y-axis) and population-specific SNPs (negative y-axis) identified in each population. (b) Functional classification of the candidate SNPs. (aStop-gained: resulting in a premature stop codon in the coding sequence. bStop-lost: resulting in an elongated gene product because of stop codon loss.) (c) Violin plots of nucleotide diversity (π) for each population in 10-kb windows with10-kb steps. (d) LD decay estimated across the studied populations.