Zebrafish vs Tiger tail seahorse LastZ results

Zebrafish (Danio rerio, GRCz11) and Tiger tail seahorse (Hippocampus comes, H_comes_QL1_v1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 94. Zebrafish 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

ParameterValue
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

ParameterZebrafishTiger tail seahorse
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 275,185 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Zebrafish

Uncovered: 1,322,608,624 out of 1,373,471,384
Covered: 50,862,760 out of 1,373,471,384

Uncovered: 11,667,581 out of 42,031,845
Matches: 21,304,896 out of 42,031,845
Mismatches: 8,586,145 out of 42,031,845
Insertions: 473,223 out of 42,031,845
Identity over aligned base-pairs: 70.2%

Tiger tail seahorse

Uncovered: 444,771,379 out of 493,775,940
Covered: 49,004,561 out of 493,775,940

Uncovered: 5,969,478 out of 31,719,350
Matches: 18,291,235 out of 31,719,350
Mismatches: 6,992,638 out of 31,719,350
Insertions: 465,999 out of 31,719,350
Identity over aligned base-pairs: 71.0%

Block size distribution

Size range All 275,185 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,798
8.0 kb
10 bp - 100 bp
46,125
3.4 Mb
14,888
1.1 Mb
100 bp - 1 kb
223,240
52.0 Mb
71,616
21.8 Mb
1 kb - 10 kb
3,952
7.1 Mb
12,864
31.2 Mb
10 kb - 100 kb
70
1.1 Mb
505
9.0 Mb
100 kb - 1 Mb
4
467.8 kb