Sheepshead minnow vs Zebrafish LastZ results

Sheepshead minnow (Cyprinodon variegatus, C_variegatus-1.0) and Zebrafish (Danio rerio, GRCz11) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 94. Sheepshead minnow 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

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

Statistics over 284,498 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Sheepshead minnow

Uncovered: 980,080,348 out of 1,035,184,475
Covered: 55,104,127 out of 1,035,184,475

Uncovered: 7,148,122 out of 35,763,670
Matches: 20,287,980 out of 35,763,670
Mismatches: 7,750,468 out of 35,763,670
Insertions: 577,100 out of 35,763,670
Identity over aligned base-pairs: 70.9%

Zebrafish

Uncovered: 1,313,745,221 out of 1,373,471,384
Covered: 59,726,163 out of 1,373,471,384

Uncovered: 10,314,909 out of 42,031,845
Matches: 22,272,885 out of 42,031,845
Mismatches: 8,953,462 out of 42,031,845
Insertions: 490,589 out of 42,031,845
Identity over aligned base-pairs: 70.2%

Block size distribution

Size range All 284,498 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,702
7.5 kb
10 bp - 100 bp
41,305
3.0 Mb
14,571
1.1 Mb
100 bp - 1 kb
234,812
57.9 Mb
83,873
26.1 Mb
1 kb - 10 kb
6,674
12.1 Mb
15,269
36.9 Mb
10 kb - 100 kb
5
74.9 kb
491
8.7 Mb
100 kb - 1 Mb
3
371.8 kb