Figure 2

SNP distributions within datasets and between datasets. Diagrams A-C show the distribution of SNP predictions over the nucleotide position in the sequence reads for d-RRL, d-Shared and d-Between. Each filled dot represents the cumulative number of occurrences that the read position was involved in a SNP inference. Open dots represent the average TS:TV ratio of SNPs indentified in that read position. Diagram D shows how many SNPs are shared between independent SNP sets d-EST (SNPs identified by EST sequencing of domesticated duck (Vignal, unpublished data)), d-WGS (SNPs identified in the whole genome assembly of domesticated duck (Huang et al., in prep.)) and d-RRL (SNPs identified in RRL sequencing of wild mallard (this study)).