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Cattle vs Sperm whale LastZ results

Cattle (Bos taurus, ARS-UCD2.0) and Sperm whale (Physeter catodon, ASM283717v2) 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

ParameterCattleSperm whale
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 2,045,167 alignment blocks

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

Uncovered: 1,114,718,314 out of 2,770,686,120
Covered: 1,655,967,806 out of 2,770,686,120

Uncovered: 2,189,246 out of 35,918,484
Matches: 30,726,373 out of 35,918,484
Mismatches: 2,862,568 out of 35,918,484
Insertions: 140,297 out of 35,918,484
Identity over aligned base-pairs: 91.1%

Sperm whale

Uncovered: 892,254,797 out of 2,512,132,974
Covered: 1,619,878,177 out of 2,512,132,974

Uncovered: 1,267,193 out of 30,899,790
Matches: 27,278,206 out of 30,899,790
Mismatches: 2,242,600 out of 30,899,790
Insertions: 111,791 out of 30,899,790
Identity over aligned base-pairs: 92.1%

Block size distribution

Size range All 2,045,167 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
70,531
450.7 kb
10 bp - 100 bp
179,479
9.1 Mb
19,368
1.3 Mb
100 bp - 1 kb
1,210,480
553.6 Mb
50,560
16.3 Mb
1 kb - 10 kb
583,477
1.1 Gb
10,240
26.6 Mb
10 kb - 100 kb
1,200
15.8 Mb
2,991
94.7 Mb
100 kb - 1 Mb
297
69.0 Mb
1 Mb - 10 Mb
61
247.2 Mb
10 Mb - 100 Mb
53
1.3 Gb