We need your help! Has Ensembl saved you time or effort? Please take 15 minutes to fill in a survey and help EMBL-EBI make the case for why open data resources are critical to life science research.
https://www.surveymonkey.com/r/QGFMBH8?channel=[webpage]

Cattle vs Wild yak LastZ results

Cattle (Bos taurus, ARS-UCD2.0) and Wild yak (Bos mutus, BosGru_v2.0) 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

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

Statistics over 280,717 alignment blocks

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

Uncovered: 167,635,033 out of 2,770,686,120
Covered: 2,603,051,087 out of 2,770,686,120

Uncovered: 637,833 out of 35,918,484
Matches: 33,772,443 out of 35,918,484
Mismatches: 1,471,112 out of 35,918,484
Insertions: 37,096 out of 35,918,484
Identity over aligned base-pairs: 95.7%

Wild yak

Uncovered: 95,333,233 out of 2,645,161,911
Covered: 2,549,828,678 out of 2,645,161,911

Uncovered: 420,784 out of 32,081,175
Matches: 31,148,559 out of 32,081,175
Mismatches: 485,074 out of 32,081,175
Insertions: 26,758 out of 32,081,175
Identity over aligned base-pairs: 98.4%

Block size distribution

Size range All 280,717 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
2,198
13.7 kb
10 bp - 100 bp
19,562
1.0 Mb
5,791
347.5 kb
100 bp - 1 kb
55,891
24.1 Mb
16,703
6.4 Mb
1 kb - 10 kb
118,206
522.9 Mb
6,442
19.0 Mb
10 kb - 100 kb
84,511
2.0 Gb
2,230
76.5 Mb
100 kb - 1 Mb
349
41.8 Mb
2,169
911.7 Mb
1 Mb - 10 Mb
839
1.6 Gb