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
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 size10,100,000
Masking options

Statistics over 2,206,069 alignment blocks

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

Uncovered: 1,515,707,828 out of 3,099,750,718
Covered: 1,584,042,890 out of 3,099,750,718

Uncovered: 1,732,541 out of 38,571,754
Matches: 31,772,658 out of 38,571,754
Mismatches: 4,624,567 out of 38,571,754
Insertions: 441,988 out of 38,571,754
Identity over aligned base-pairs: 86.2%

Vaquita

Uncovered: 858,930,402 out of 2,371,524,154
Covered: 1,512,593,752 out of 2,371,524,154

Uncovered: 331,587 out of 31,056,201
Matches: 27,253,127 out of 31,056,201
Mismatches: 3,342,078 out of 31,056,201
Insertions: 129,409 out of 31,056,201
Identity over aligned base-pairs: 88.7%

Block size distribution

Size range All 2,206,069 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
73,351
492.4 kb
10 bp - 100 bp
286,042
14.1 Mb
30,317
2.1 Mb
100 bp - 1 kb
1,273,136
568.1 Mb
98,105
35.1 Mb
1 kb - 10 kb
572,433
1.1 Gb
26,760
64.0 Mb
10 kb - 100 kb
1,093
16.1 Mb
2,102
54.5 Mb
100 kb - 1 Mb
14
1.7 Mb
241
59.4 Mb
1 Mb - 10 Mb
60
223.7 Mb
10 Mb - 100 Mb
35
1.1 Gb
100 Mb - 1 Gb
2
203.6 Mb