Table 1.
Summary of the genome features of Pediculus humanus humanus compared with Drosophila melanogaster
| Genome feature | Count | Nucleotides (Mb) | Genome fraction (%) |
| P. h. humanus (D. melanogaster) | 6 chromosomes (4 chromosomes) | 110 (169) | 100 (100) |
| Gene-rich clusters* containing 95% of genes | 1,110 (1,130) | 55 (70) | 50 (41) |
| Protein-coding genes | |||
| Total [multi-exon] | 10,773, [10,424]; (13,794, [11,458]) | 33.8 (82.6) | 31 (49) |
| Coding exons | 69,261 (54,606) | 16.6 (22.3) | 15 (13) |
| Introns | 58,522 (44,698) | 17.2 (48.6) | 15 (29) |
| Non–protein-coding genes | |||
| tRNAs | 161 (292) | 0.012 (0.022) | <1 |
| miRNAs | 57 (90) | 0.005 (0.008) | <1 |
| Transposable elements | 3,558 (9,409) | 1.1 (11.6) | 1 (7) |
| Tandem repeats | 130,608 (25,904) | 6.9 (6.1) | 6 (4) |
D. melanogaster values were obtained from FlyBase release 5.23 with the same parameters used to obtain, parse, and count the P. h. humanus genome. The more numerous body louse exons and introns suggest intron loss in D. melanogaster but with an increase in their sizes.
*Supporting documentation is in Fig. S4F.