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Human vs Amazon molly LastZ results

Human (Homo sapiens, GRCh38) and Amazon molly (Poecilia formosa, PoeFor_5.1.2) 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
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

ParameterHumanAmazon molly
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size10,100,000
Masking options

Statistics over 261,490 alignment blocks

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

Uncovered: 3,063,646,802 out of 3,099,750,718
Covered: 36,103,916 out of 3,099,750,718

Uncovered: 17,597,362 out of 38,571,754
Matches: 14,290,556 out of 38,571,754
Mismatches: 6,304,540 out of 38,571,754
Insertions: 379,296 out of 38,571,754
Identity over aligned base-pairs: 68.1%

Amazon molly

Uncovered: 713,779,180 out of 748,923,461
Covered: 35,144,281 out of 748,923,461

Uncovered: 15,672,468 out of 40,804,723
Matches: 17,217,516 out of 40,804,723
Mismatches: 7,441,117 out of 40,804,723
Insertions: 473,622 out of 40,804,723
Identity over aligned base-pairs: 68.5%

Block size distribution

Size range All 261,490 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,593
7.0 kb
10 bp - 100 bp
53,561
4.0 Mb
17,665
1.3 Mb
100 bp - 1 kb
203,848
41.1 Mb
86,625
26.1 Mb
1 kb - 10 kb
2,431
4.1 Mb
10,521
20.4 Mb
10 kb - 100 kb
57
895.4 kb
128
2.0 Mb
100 kb - 1 Mb
1
118.9 kb
2
213.3 kb