Table 1. Description of the results of the alignments on PN40024 for the different sequenced clones by 454 methodology and for PN115 available sequences.
PN386 | PN583 | PN777 | Mean of 3 clones | PN115 | ||
% of aligned sequences | Alignment Step 1 | 48.1 | 42.5 | 40.2 | 43.6 | 57.7 |
Alignment Step 2 | 0.9 | 1.1 | 1.0 | 1.0 | 1.3 | |
Alignment Step 3 | 12.5 | 21.7 | 16.7 | 16.9 | 8.0 | |
Total of aligned reads | 61.5 | 65.3 | 57.9 | 61.5 | 67.0 | |
% of unaligned sequences | Repeat elements | 12.5 | 13.4 | 13.90 | 13.2 | 12.7 |
Paralogs | 12.0 | 10.1 | 13.0 | 11.7 | 20.3 | |
Cytoplasmic DNA | 4.2 | 3.6 | 3.7 | 3.8 | ||
Unknown | 8.1 | 6.8 | 10.4 | 8.4 | ||
Contamination (other organisms) | 0.01 | 0.01 | 0.01 | 0.01 | ||
Low quality reads | 1.7 | 0.8 | 1.4 | 1.3 | ||
Total of unaligned reads | 38.5 | 34.8 | 42.1 | 38.4 | 33.0 |
Proportion of aligned reads in each steps of the alignment process and proportion of unaligned reads on the reference genome. First alignment step: aligned reads with 95% identity on single loci with reference sequence; Second alignment step: reads aligned in this step are composed by a repeat element (between 50–300 b) which was masked and by a unique sequence (greater than 150 b) which allowed alignment; Third alignment step: reads in this step are aligned on reference sequence with a gap parameter fixed at a minimum.