Figure 4From: Annotation-based genome-wide SNP discovery in the large and complex Aegilops tauschii genome using next-generation sequencing without a reference genome sequenceRoche 454 sequencing errors in relation to base quality score of reads. Over 70% of base substitution errors (arrows) can be filtered out if the SNP base quality score is ≥ 30 and the neighbourhood quality standard (NQS) 11 base score is ≥ 20.Back to article page