Table 1.
Genomic features of B. microti and five other Apicomplexa
| Feature | B. microti | B. bovis | T. parva | T. annulata | P. falciparum | C. parvum |
|---|---|---|---|---|---|---|
| Genome | ||||||
| Size (Mbp)a | 6.5 | 8.2 | 8.3 | 8.4 | 23.3 | 9.1 |
| Number of chromosomes | 3 | 4 | 4 | 4 | 14 | 8 |
| G + C content (%) | 36 | 41.5 | 34.1 | 32.5 | 19.3 | 30.8 |
| Genes | ||||||
| Number of genesb | 3513 | 3706 | 3796 | 4082 | 5324 | 3805 |
| Mean gene length (bp) | 1327 | 1503 | 1407 | 1602 | 2326 | 1844 |
| Mean gene length including introns (bp) | 1471 | 1609 | 1654 | 1802 | 2590 | 1851 |
| Gene density (bp per gene) | 1816 | 2194 | 2059 | 2199 | 4374 | 2411 |
| Coding regions (%) | 73 | 68 | 68 | 73 | 53 | 76 |
| Coding regions including introns (%) | 81 | 73 | 80 | 82 | 59 | 77 |
| Number of genes with introns (%) | 70 | 60 | 75 | 71 | 54 | 4 |
| Exons | ||||||
| Number per gene | 3.3 | 2.8 | 2.7 | 3.9 | 2.6 | 1.1 |
| Mean length (bp) | 397 | 547 | 514 | 416 | 904 | 1748 |
| Total length (%) | 73 | 68 | 68 | 73 | 53 | 77 |
| Introns | ||||||
| Number per gene | 2.3 | 1.7 | 2.6 | 2.9 | 1.6 | 0.1 |
| Number per gene presenting intron | 3.4 | 2.9 | 3.5 | 4 | 2.9 | 1.3 |
| Mean length (bp) | 61 | 60 | 94 | 70 | 167 | 96 |
| Total length (%) | 8 | 5 | 12 | 9 | 6 | 0.02 |
| Intergenic regions | ||||||
| Mean length (bp) | 346 | 585 | 405 | 398 | 1784 | 561 |
| Total length (%) | 19 | 27 | 20 | 18 | 41 | 23 |
| RNAs | ||||||
| Number of tRNA genesc | 44 | 70 | 71 | 47 | 72 | 45 |
| Number of 5S rRNA genes | 2 | ND | 1 | 3 | 3 | 6 |
| Number of 5.8S/18S/28S rRNA units | 2 | 5 | 8 | 1 | 13 | 9 |
Quantitative data have been calculated using Artemis genome browser.
aEstimated size including gaps.
bData from Plasmodb 8.1 data for Apicomplexa. B. microti: this work.
cData from piroplasmoDB v1.1 and plasmoDB v8.1.