Zebrafish vs Tetraodon LastZ results

Zebrafish (Danio rerio, GRCz11) and Tetraodon (Tetraodon nigroviridis, TETRAODON8) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 92. 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

ParameterZebrafishTetraodon
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 281,298 alignment blocks

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

Uncovered: 1,314,093,703 out of 1,373,471,384
Covered: 59,377,681 out of 1,373,471,384

Uncovered: 10,782,882 out of 42,031,845
Matches: 21,796,438 out of 42,031,845
Mismatches: 8,973,412 out of 42,031,845
Insertions: 479,113 out of 42,031,845
Identity over aligned base-pairs: 69.8%

Tetraodon

Uncovered: 305,916,427 out of 358,618,246
Covered: 52,701,819 out of 358,618,246

Uncovered: 4,208,112 out of 30,080,167
Matches: 18,521,970 out of 30,080,167
Mismatches: 6,930,604 out of 30,080,167
Insertions: 419,481 out of 30,080,167
Identity over aligned base-pairs: 71.6%

Block size distribution

Size range All 281,298 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,961
8.9 kb
10 bp - 100 bp
45,680
3.3 Mb
12,952
964.7 kb
100 bp - 1 kb
226,214
56.5 Mb
64,614
21.6 Mb
1 kb - 10 kb
7,383
11.6 Mb
15,770
37.2 Mb
10 kb - 100 kb
59
1.5 Mb
610
12.5 Mb
100 kb - 1 Mb
1
139.6 kb
6
819.4 kb