Human vs Goat LastZ results

Human (Homo sapiens, GRCh38) and Goat (Capra hircus, ARS1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 92. 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

ParameterHumanGoat
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 2,351,883 alignment blocks

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

Uncovered: 1,660,360,571 out of 3,099,750,718
Covered: 1,439,390,147 out of 3,099,750,718

Uncovered: 1,637,616 out of 38,571,754
Matches: 31,405,061 out of 38,571,754
Mismatches: 5,050,460 out of 38,571,754
Insertions: 478,617 out of 38,571,754
Identity over aligned base-pairs: 85.0%

Goat

Uncovered: 1,573,488,383 out of 2,922,813,246
Covered: 1,349,324,863 out of 2,922,813,246

Uncovered: 2,503,220 out of 33,933,515
Matches: 27,380,650 out of 33,933,515
Mismatches: 3,890,194 out of 33,933,515
Insertions: 159,451 out of 33,933,515
Identity over aligned base-pairs: 87.1%

Block size distribution

Size range All 2,351,883 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
80,794
539.2 kb
10 bp - 100 bp
286,440
14.1 Mb
17,287
1.2 Mb
100 bp - 1 kb
1,500,188
666.9 Mb
59,919
21.6 Mb
1 kb - 10 kb
483,799
861.6 Mb
18,804
46.7 Mb
10 kb - 100 kb
659
9.6 Mb
2,057
55.3 Mb
100 kb - 1 Mb
3
305.9 kb
290
79.3 Mb
1 Mb - 10 Mb
90
343.2 Mb
10 Mb - 100 Mb
48
1.0 Gb