Cow vs Wild yak LastZ results

Cow (Bos taurus, ARS-UCD1.3) and Wild yak (Bos mutus, BosGru_v2.0) 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

ParameterCowWild yak
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 277,951 alignment blocks

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

Uncovered: 115,953,100 out of 2,711,209,831
Covered: 2,595,256,731 out of 2,711,209,831

Uncovered: 319,925 out of 37,648,360
Matches: 35,327,842 out of 37,648,360
Mismatches: 1,953,996 out of 37,648,360
Insertions: 46,597 out of 37,648,360
Identity over aligned base-pairs: 94.6%

Wild yak

Uncovered: 95,292,202 out of 2,645,161,911
Covered: 2,549,869,709 out of 2,645,161,911

Uncovered: 431,834 out of 32,081,175
Matches: 31,138,533 out of 32,081,175
Mismatches: 483,873 out of 32,081,175
Insertions: 26,935 out of 32,081,175
Identity over aligned base-pairs: 98.4%

Block size distribution

Size range All 277,951 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
2,169
13.5 kb
10 bp - 100 bp
19,229
1.0 Mb
5,701
341.4 kb
100 bp - 1 kb
54,679
23.6 Mb
16,313
6.2 Mb
1 kb - 10 kb
117,246
519.7 Mb
6,294
18.6 Mb
10 kb - 100 kb
84,279
2.0 Gb
2,189
75.4 Mb
100 kb - 1 Mb
349
41.8 Mb
2,154
907.0 Mb
1 Mb - 10 Mb
838
1.6 Gb