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Cattle vs Vaquita LastZ results

Cattle (Bos taurus, ARS-UCD2.0) and Vaquita (Phocoena sinus, mPhoSin1.pri) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 114. Cattle 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

ParameterCattleVaquita
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 2,069,961 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Cattle

Uncovered: 1,120,345,509 out of 2,770,686,120
Covered: 1,650,340,611 out of 2,770,686,120

Uncovered: 2,278,121 out of 35,918,484
Matches: 30,675,443 out of 35,918,484
Mismatches: 2,815,099 out of 35,918,484
Insertions: 149,821 out of 35,918,484
Identity over aligned base-pairs: 91.2%

Vaquita

Uncovered: 760,161,751 out of 2,371,524,154
Covered: 1,611,362,403 out of 2,371,524,154

Uncovered: 903,683 out of 31,056,201
Matches: 27,745,818 out of 31,056,201
Mismatches: 2,296,030 out of 31,056,201
Insertions: 110,670 out of 31,056,201
Identity over aligned base-pairs: 92.0%

Block size distribution

Size range All 2,069,961 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
72,409
462.5 kb
10 bp - 100 bp
187,274
9.7 Mb
21,053
1.4 Mb
100 bp - 1 kb
1,234,164
559.6 Mb
52,429
16.5 Mb
1 kb - 10 kb
574,677
1.1 Gb
9,372
23.7 Mb
10 kb - 100 kb
1,433
20.1 Mb
834
19.0 Mb
100 kb - 1 Mb
4
458.6 kb
56
20.8 Mb
1 Mb - 10 Mb
45
191.3 Mb
10 Mb - 100 Mb
55
1.4 Gb