Human vs Pig USMARC LastZ results

Human (Homo sapiens, GRCh38) and Pig USMARC (Sus scrofa, USMARCv1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 97. 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

ParameterHumanPig USMARC
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 2,357,176 alignment blocks

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

Uncovered: 1,602,356,036 out of 3,096,649,726
Covered: 1,494,293,690 out of 3,096,649,726

Uncovered: 997,549 out of 35,623,403
Matches: 29,901,184 out of 35,623,403
Mismatches: 4,421,253 out of 35,623,403
Insertions: 303,417 out of 35,623,403
Identity over aligned base-pairs: 86.4%

Pig USMARC

Uncovered: 1,356,780,243 out of 2,755,438,035
Covered: 1,398,657,792 out of 2,755,438,035

Uncovered: 3,022,281 out of 35,166,034
Matches: 27,949,559 out of 35,166,034
Mismatches: 3,992,774 out of 35,166,034
Insertions: 201,420 out of 35,166,034
Identity over aligned base-pairs: 87.0%

Block size distribution

Size range All 2,357,176 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
89,902
598.0 kb
10 bp - 100 bp
292,105
14.2 Mb
18,625
1.3 Mb
100 bp - 1 kb
1,458,131
647.7 Mb
63,902
23.0 Mb
1 kb - 10 kb
516,113
956.8 Mb
20,806
53.3 Mb
10 kb - 100 kb
875
14.2 Mb
2,414
69.5 Mb
100 kb - 1 Mb
50
6.5 Mb
360
95.4 Mb
1 Mb - 10 Mb
74
268.5 Mb
10 Mb - 100 Mb
42
1.1 Gb