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
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

ParameterHumanGoat
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 2,394,209 alignment blocks

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

Uncovered: 1,657,259,579 out of 3,096,649,726
Covered: 1,439,390,147 out of 3,096,649,726

Uncovered: 699,501 out of 35,522,272
Matches: 29,928,480 out of 35,522,272
Mismatches: 4,583,426 out of 35,522,272
Insertions: 310,865 out of 35,522,272
Identity over aligned base-pairs: 85.9%

Goat

Uncovered: 1,572,538,793 out of 2,922,813,246
Covered: 1,350,274,453 out of 2,922,813,246

Uncovered: 2,484,265 out of 33,933,515
Matches: 27,315,192 out of 33,933,515
Mismatches: 3,975,456 out of 33,933,515
Insertions: 158,602 out of 33,933,515
Identity over aligned base-pairs: 86.9%

Block size distribution

Size range All 2,394,209 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
82,150
547.9 kb
10 bp - 100 bp
292,108
14.4 Mb
17,798
1.2 Mb
100 bp - 1 kb
1,528,273
678.8 Mb
62,481
22.5 Mb
1 kb - 10 kb
490,956
874.7 Mb
19,618
48.9 Mb
10 kb - 100 kb
709
11.0 Mb
2,253
62.9 Mb
100 kb - 1 Mb
13
1.6 Mb
317
88.7 Mb
1 Mb - 10 Mb
96
351.1 Mb
10 Mb - 100 Mb
48
1.0 Gb