Human vs Wild yak LastZ results

Human (Homo sapiens, GRCh38) and Wild yak (Bos mutus, BosGru_v2.0) 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
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

ParameterHumanWild yak
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 2,255,618 alignment blocks

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

Uncovered: 1,669,473,124 out of 3,096,649,726
Covered: 1,427,176,602 out of 3,096,649,726

Uncovered: 854,497 out of 35,604,148
Matches: 29,052,909 out of 35,604,148
Mismatches: 5,388,894 out of 35,604,148
Insertions: 307,848 out of 35,604,148
Identity over aligned base-pairs: 83.6%

Wild yak

Uncovered: 1,307,452,576 out of 2,645,161,911
Covered: 1,337,709,335 out of 2,645,161,911

Uncovered: 1,936,328 out of 32,081,175
Matches: 25,979,640 out of 32,081,175
Mismatches: 4,010,684 out of 32,081,175
Insertions: 154,523 out of 32,081,175
Identity over aligned base-pairs: 86.2%

Block size distribution

Size range All 2,255,618 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
79,452
531.0 kb
10 bp - 100 bp
260,380
12.5 Mb
15,463
1.1 Mb
100 bp - 1 kb
1,440,679
648.7 Mb
57,778
21.4 Mb
1 kb - 10 kb
474,707
836.2 Mb
18,627
45.9 Mb
10 kb - 100 kb
396
5.6 Mb
2,568
84.7 Mb
100 kb - 1 Mb
4
482.2 kb
2,144
801.6 Mb
1 Mb - 10 Mb
355
549.2 Mb