Human vs Lumpfish LastZ results

Human (Homo sapiens, GRCh38) and Lumpfish (Cyclopterus lumpus, fCycLum1.pri) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 101. 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

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

ParameterHumanLumpfish
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 246,643 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Human

Uncovered: 3,062,899,778 out of 3,096,649,726
Covered: 33,749,948 out of 3,096,649,726

Uncovered: 14,874,787 out of 35,634,800
Matches: 14,227,652 out of 35,634,800
Mismatches: 6,168,047 out of 35,634,800
Insertions: 364,314 out of 35,634,800
Identity over aligned base-pairs: 68.5%

Lumpfish

Uncovered: 540,263,409 out of 572,885,595
Covered: 32,622,186 out of 572,885,595

Uncovered: 13,116,024 out of 36,193,391
Matches: 15,875,463 out of 36,193,391
Mismatches: 6,764,918 out of 36,193,391
Insertions: 436,986 out of 36,193,391
Identity over aligned base-pairs: 68.8%

Block size distribution

Size range All 246,643 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,885
8.4 kb
10 bp - 100 bp
50,878
3.8 Mb
14,173
1.1 Mb
100 bp - 1 kb
192,245
38.2 Mb
76,092
23.3 Mb
1 kb - 10 kb
1,625
2.5 Mb
9,524
18.7 Mb
10 kb - 100 kb
10
439.3 kb
94
1.8 Mb
100 kb - 1 Mb
1
103.9 kb