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Human vs Common canary LastZ results

Human (Homo sapiens, GRCh38) and Common canary (Serinus canaria, SCA1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 96. 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

ParameterHumanCommon canary
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size10,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 292,978 alignment blocks

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

Uncovered: 3,018,867,320 out of 3,099,750,718
Covered: 80,883,398 out of 3,099,750,718

Uncovered: 12,315,842 out of 38,571,754
Matches: 19,144,963 out of 38,571,754
Mismatches: 6,744,949 out of 38,571,754
Insertions: 366,000 out of 38,571,754
Identity over aligned base-pairs: 72.9%

Common canary

Uncovered: 1,085,983,697 out of 1,152,083,301
Covered: 66,099,604 out of 1,152,083,301

Uncovered: 4,592,690 out of 25,036,602
Matches: 15,267,080 out of 25,036,602
Mismatches: 4,941,299 out of 25,036,602
Insertions: 235,533 out of 25,036,602
Identity over aligned base-pairs: 74.7%

Block size distribution

Size range All 292,978 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
653
3.4 kb
10 bp - 100 bp
41,548
3.1 Mb
14,000
1.0 Mb
100 bp - 1 kb
241,570
66.7 Mb
90,000
30.7 Mb
1 kb - 10 kb
9,189
14.3 Mb
14,072
33.2 Mb
10 kb - 100 kb
17
318.9 kb
661
14.8 Mb
100 kb - 1 Mb
1
100.2 kb
26
4.8 Mb