Zebrafish vs Coelacanth LastZ results

Zebrafish (Danio rerio, GRCz11) and Coelacanth (Latimeria chalumnae, LatCha1) 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

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

Statistics over 234,882 alignment blocks

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

Uncovered: 1,321,508,073 out of 1,373,471,384
Covered: 51,963,311 out of 1,373,471,384

Uncovered: 14,373,949 out of 42,031,845
Matches: 18,636,766 out of 42,031,845
Mismatches: 8,596,140 out of 42,031,845
Insertions: 424,990 out of 42,031,845
Identity over aligned base-pairs: 67.4%

Coelacanth

Uncovered: 2,823,254,909 out of 2,860,591,921
Covered: 37,337,012 out of 2,860,591,921

Uncovered: 9,927,691 out of 30,870,617
Matches: 14,332,644 out of 30,870,617
Mismatches: 6,254,137 out of 30,870,617
Insertions: 356,145 out of 30,870,617
Identity over aligned base-pairs: 68.4%

Block size distribution

Size range All 234,882 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,168
4.7 kb
10 bp - 100 bp
34,946
2.7 Mb
19,038
1.5 Mb
100 bp - 1 kb
194,090
41.7 Mb
115,535
31.2 Mb
1 kb - 10 kb
4,204
7.9 Mb
8,856
17.6 Mb
10 kb - 100 kb
474
10.5 Mb
525
12.3 Mb
100 kb - 1 Mb
2
224.6 kb