Human vs Megabat LastZ results
Human (Homo sapiens, GRCh38) and Megabat (Pteropus vampyrus, pteVam1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 76. Human was used as the reference species. After running LastZ, the raw LastZ alignment blocks were chained according to their location in both genomes. During the final netting process, the best sub-chain was chosen in each region on the reference species.
Configuration parameters
| Parameter | Value |
|---|---|
| Gap open penalty (O) | 400 |
| Gap extend penalty (E) | 30 |
| HSP threshold (K) | 3000 |
| Threshold for gapped extension (L) | 3000 |
| Threshold for alignments between gapped alignment blocks (H) | 2200 |
| Masking count (M) | |
| Seed and Transition value (T) | 1 |
| Scoring matrix (Q) | Default:
A C G T
91 -114 -31 -123
-114 100 -125 -31
-31 -125 100 -114
-123 -31 -114 91
|
Chunking parameters
| Parameter | Human | Megabat |
|---|---|---|
| Chunk size | 30,000,000 | 10,100,000 |
| Overlap | 0 | 100,000 |
| Group set size | 0 | 10,100,000 |
| Masking options | {default_soft_masking => 1} |
Statistics over 1,597,067 alignment blocks
| Genome coverage (bp) | Coding exon coverage (bp) | |
|---|---|---|
| Human |
Uncovered: 1,740,970,622 out of 3,096,649,726 |
Uncovered: 2,510,313 out of 35,228,305 |
| Megabat |
Uncovered: 733,278,485 out of 1,999,614,463 |
Uncovered: 1,899,900 out of 28,943,432 |
Block size distribution
| Size range | All 1,597,067 alignment blocks | Blocks grouped in nets | |||
|---|---|---|---|---|---|
| # blocks | Total size (incl. gaps) | # nets | Total size (incl. gaps) | ||
| 1 bp - 10 bp | 18,347 |
119.2 kb |
|||
| 10 bp - 100 bp | 130,957 |
7.7 Mb |
19,349 |
1.3 Mb |
|
| 100 bp - 1 kb | 953,567 |
438.8 Mb |
78,021 |
30.6 Mb |
|
| 1 kb - 10 kb | 493,817 |
967.5 Mb |
31,849 |
82.8 Mb |
|
| 10 kb - 100 kb | 379 |
4.5 Mb |
11,020 |
405.6 Mb |
|
| 100 kb - 1 Mb | 3,783 |
875.4 Mb |
|||
| 1 Mb - 10 Mb | 19 |
23.0 Mb |
|||