Human vs Tetraodon LastZ results

Human (Homo sapiens, GRCh38) and Tetraodon (Tetraodon nigroviridis, TETRAODON8) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 76. 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

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

Statistics over 243,402 alignment blocks

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

Uncovered: 3,059,633,743 out of 3,096,649,726
Covered: 37,015,983 out of 3,096,649,726

Uncovered: 15,295,993 out of 35,619,351
Matches: 13,747,138 out of 35,619,351
Mismatches: 6,191,993 out of 35,619,351
Insertions: 384,227 out of 35,619,351
Identity over aligned base-pairs: 67.6%

Tetraodon

Uncovered: 325,018,846 out of 358,618,246
Covered: 33,599,400 out of 358,618,246

Uncovered: 8,383,504 out of 30,080,167
Matches: 14,914,015 out of 30,080,167
Mismatches: 6,386,310 out of 30,080,167
Insertions: 396,338 out of 30,080,167
Identity over aligned base-pairs: 68.7%

Block size distribution

Size range All 243,402 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,631
7.6 kb
10 bp - 100 bp
50,156
3.7 Mb
14,375
1.1 Mb
100 bp - 1 kb
188,439
39.8 Mb
73,026
23.2 Mb
1 kb - 10 kb
3,139
4.8 Mb
11,503
22.6 Mb
10 kb - 100 kb
34
912.4 kb
111
2.0 Mb
100 kb - 1 Mb
3
374.7 kb
5
645.2 kb