Human vs Fugu LastZ results

Human (Homo sapiens, GRCh38) and Fugu (Takifugu rubripes, fTakRub1.2) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 99. 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

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

Statistics over 249,861 alignment blocks

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

Uncovered: 3,061,851,955 out of 3,096,649,726
Covered: 34,797,771 out of 3,096,649,726

Uncovered: 15,227,903 out of 35,619,351
Matches: 13,951,114 out of 35,619,351
Mismatches: 6,076,881 out of 35,619,351
Insertions: 363,453 out of 35,619,351
Identity over aligned base-pairs: 68.4%

Fugu

Uncovered: 351,095,790 out of 384,110,215
Covered: 33,014,425 out of 384,110,215

Uncovered: 15,118,782 out of 37,455,454
Matches: 15,280,466 out of 37,455,454
Mismatches: 6,601,380 out of 37,455,454
Insertions: 454,826 out of 37,455,454
Identity over aligned base-pairs: 68.4%

Block size distribution

Size range All 249,861 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,757
8.1 kb
10 bp - 100 bp
52,148
3.9 Mb
14,710
1.1 Mb
100 bp - 1 kb
194,280
39.2 Mb
73,263
22.6 Mb
1 kb - 10 kb
1,652
2.5 Mb
10,300
20.6 Mb
10 kb - 100 kb
17
903.2 kb
100
2.0 Mb
100 kb - 1 Mb
7
877.4 kb
9
1.1 Mb