Cow vs Narwhal LastZ results

Cow (Bos taurus, ARS-UCD1.3) and Narwhal (Monodon monoceros, NGI_Narwhal_1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 111. Cow 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

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

Statistics over 2,023,712 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Cow

Uncovered: 1,065,627,923 out of 2,711,209,831
Covered: 1,645,581,908 out of 2,711,209,831

Uncovered: 3,293,219 out of 37,648,360
Matches: 31,204,300 out of 37,648,360
Mismatches: 2,986,543 out of 37,648,360
Insertions: 164,298 out of 37,648,360
Identity over aligned base-pairs: 90.8%

Narwhal

Uncovered: 745,861,489 out of 2,355,574,979
Covered: 1,609,713,490 out of 2,355,574,979

Uncovered: 933,942 out of 31,508,919
Matches: 28,136,261 out of 31,508,919
Mismatches: 2,326,219 out of 31,508,919
Insertions: 112,497 out of 31,508,919
Identity over aligned base-pairs: 92.0%

Block size distribution

Size range All 2,023,712 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
70,424
449.6 kb
10 bp - 100 bp
179,720
9.3 Mb
20,633
1.4 Mb
100 bp - 1 kb
1,196,266
544.9 Mb
52,073
16.6 Mb
1 kb - 10 kb
575,834
1.1 Gb
10,360
26.9 Mb
10 kb - 100 kb
1,468
20.0 Mb
989
21.1 Mb
100 kb - 1 Mb
62
22.7 Mb
1 Mb - 10 Mb
45
182.6 Mb
10 Mb - 100 Mb
56
1.4 Gb