Table 1.
Characterization of the Helena elements found in Drosophila genomes.
| Length | ||||||
|---|---|---|---|---|---|---|
| Species | Size of the reference copy1 (bp) | Number of copies | Min | Max | Mean ± SE2 | Percentage identity3 |
| D. melanogaster4 | 4,805 | 26 | 91 | 4,805 | 1,403 ± 160.0 | 80.40 ± 1.71 |
| D. simulans4 | 4,912 | 62 | 107 | 5,098 | 1,194 ± 130.0 | 96.10 ± 0.43 |
| D. sechellia | 4,888 | 181 | 84 | 4,888 | 775 ± 73.3 | 94.11 ± 0.29 |
| D. yakuba | 1,755 | 25 | 80 | 1,755 | 712 ± 109.0 | 95.95 ± 0.68 |
| D. erecta | 2,606 | 7 | 182 | 2,606 | 909 ± 358.0 | 92.85 ± 1.11 |
| D. ananassae | 4,056 | 40 | 83 | 4,056 | 812 ± 55.0 | 91.51 ± 0.74 |
| D. mojavensis | 4,502 | 41 | 105 | 4,502 | 1,624 ± 204.0 | 94.87 ± 1.07 |
| D. virilis | 561 | 13 | 81 | 569 | 384 ± 49.3 | 91.70 ± 1.13 |
1Length of the reference copy;
2Mean and standard error of the length between Helena copies;
3Mean and standard error (in parentheses) of percentage identity between Helena copies and the reference sequence
4Helena copies [18]