Human vs Vaquita LastZ results

Human (Homo sapiens, GRCh38) and Vaquita (Phocoena sinus, mPhoSin1.pri) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 101. 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

ParameterHumanVaquita
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 2,149,885 alignment blocks

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

Uncovered: 1,513,316,278 out of 3,096,649,726
Covered: 1,583,333,448 out of 3,096,649,726

Uncovered: 943,791 out of 35,634,800
Matches: 30,211,305 out of 35,634,800
Mismatches: 4,181,273 out of 35,634,800
Insertions: 298,431 out of 35,634,800
Identity over aligned base-pairs: 87.1%

Vaquita

Uncovered: 859,333,878 out of 2,371,524,154
Covered: 1,512,190,276 out of 2,371,524,154

Uncovered: 332,056 out of 31,056,201
Matches: 27,252,604 out of 31,056,201
Mismatches: 3,342,092 out of 31,056,201
Insertions: 129,449 out of 31,056,201
Identity over aligned base-pairs: 88.7%

Block size distribution

Size range All 2,149,885 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
71,719
481.4 kb
10 bp - 100 bp
278,651
13.7 Mb
29,578
2.0 Mb
100 bp - 1 kb
1,238,440
553.0 Mb
94,523
33.7 Mb
1 kb - 10 kb
559,990
1.1 Gb
25,075
59.5 Mb
10 kb - 100 kb
1,071
15.8 Mb
1,808
44.1 Mb
100 kb - 1 Mb
14
1.7 Mb
139
38.9 Mb
1 Mb - 10 Mb
58
221.2 Mb
10 Mb - 100 Mb
35
1.1 Gb
100 Mb - 1 Gb
2
203.6 Mb