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Cattle vs Narwhal LastZ results

Cattle (Bos taurus, ARS-UCD2.0) and Narwhal (Monodon monoceros, NGI_Narwhal_1) 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

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

Statistics over 2,031,679 alignment blocks

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

Uncovered: 1,121,392,511 out of 2,770,686,120
Covered: 1,649,293,609 out of 2,770,686,120

Uncovered: 2,300,057 out of 35,918,484
Matches: 30,619,128 out of 35,918,484
Mismatches: 2,854,231 out of 35,918,484
Insertions: 145,068 out of 35,918,484
Identity over aligned base-pairs: 91.1%

Narwhal

Uncovered: 745,533,614 out of 2,355,574,979
Covered: 1,610,041,365 out of 2,355,574,979

Uncovered: 906,072 out of 31,508,919
Matches: 28,160,888 out of 31,508,919
Mismatches: 2,329,052 out of 31,508,919
Insertions: 112,907 out of 31,508,919
Identity over aligned base-pairs: 92.0%

Block size distribution

Size range All 2,031,679 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
70,668
451.2 kb
10 bp - 100 bp
180,295
9.3 Mb
20,794
1.4 Mb
100 bp - 1 kb
1,202,609
547.5 Mb
52,517
16.7 Mb
1 kb - 10 kb
576,637
1.1 Gb
10,423
27.1 Mb
10 kb - 100 kb
1,470
20.0 Mb
988
21.3 Mb
100 kb - 1 Mb
64
22.9 Mb
1 Mb - 10 Mb
46
185.7 Mb
10 Mb - 100 Mb
56
1.4 Gb