Human vs Reedfish LastZ results

Human (Homo sapiens, GRCh38) and Reedfish (Erpetoichthys calabaricus, fErpCal1.1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 98. 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

ParameterHumanReedfish
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 218,731 alignment blocks

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

Uncovered: 3,055,485,276 out of 3,096,649,726
Covered: 41,164,450 out of 3,096,649,726

Uncovered: 13,221,405 out of 35,628,222
Matches: 15,534,503 out of 35,628,222
Mismatches: 6,541,090 out of 35,628,222
Insertions: 331,224 out of 35,628,222
Identity over aligned base-pairs: 69.3%

Reedfish

Uncovered: 3,780,955,743 out of 3,811,022,027
Covered: 30,066,284 out of 3,811,022,027

Uncovered: 17,151,293 out of 35,314,704
Matches: 12,647,130 out of 35,314,704
Mismatches: 5,263,418 out of 35,314,704
Insertions: 252,863 out of 35,314,704
Identity over aligned base-pairs: 69.6%

Block size distribution

Size range All 218,731 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
921
4.0 kb
10 bp - 100 bp
38,535
2.9 Mb
18,251
1.4 Mb
100 bp - 1 kb
176,752
38.2 Mb
106,394
29.5 Mb
1 kb - 10 kb
2,501
3.8 Mb
6,969
13.1 Mb
10 kb - 100 kb
21
481.8 kb
74
1.3 Mb
100 kb - 1 Mb
1
139.5 kb
3
350.6 kb