Figure 2
From: Meiotic maps of sockeye salmon derived from massively parallel DNA sequencing
The frequency distribution of the position of each SNP in the RAD tag sequences discovered in the HX13-WL parents. After removal of the restriction site and barcode, and trimming the 3’end bases, 59 nucleotides remain. If putative SNPs were due to sequencing error, a significant enrichment of SNPs near the 3’ end of the RAD tag sequences would be expected. While a small peak in the 3’-end remains, the majority of bias has been removed and later data filtering not did not remove a larger percentage of SNPs from these locations.