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Human vs Coquerel's sifaka LastZ results

Human (Homo sapiens, GRCh38) and Coquerel's sifaka (Propithecus coquereli, Pcoq_1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 91. 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
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

ParameterHumanCoquerel's sifaka
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 2,025,030 alignment blocks

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

Uncovered: 1,401,907,135 out of 3,099,750,718
Covered: 1,697,843,583 out of 3,099,750,718

Uncovered: 1,717,034 out of 38,571,754
Matches: 32,784,639 out of 38,571,754
Mismatches: 3,746,832 out of 38,571,754
Insertions: 323,249 out of 38,571,754
Identity over aligned base-pairs: 89.0%

Coquerel's sifaka

Uncovered: 1,217,014,756 out of 2,798,152,141
Covered: 1,581,137,385 out of 2,798,152,141

Uncovered: 593,943 out of 29,815,600
Matches: 26,637,476 out of 29,815,600
Mismatches: 2,499,739 out of 29,815,600
Insertions: 84,442 out of 29,815,600
Identity over aligned base-pairs: 91.2%

Block size distribution

Size range All 2,025,030 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
70,667
479.3 kb
10 bp - 100 bp
286,765
13.8 Mb
33,018
2.2 Mb
100 bp - 1 kb
1,095,494
479.7 Mb
136,933
51.4 Mb
1 kb - 10 kb
569,914
1.2 Gb
47,705
95.4 Mb
10 kb - 100 kb
2,190
28.2 Mb
1,856
47.5 Mb
100 kb - 1 Mb
578
229.6 Mb
1 Mb - 10 Mb
417
1.2 Gb
10 Mb - 100 Mb
8
109.2 Mb