Mouse vs Algerian mouse LastZ results

Mouse (Mus musculus, GRCm39) and Algerian mouse (Mus spretus, SPRET_EiJ_v1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 103. Mouse 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

ParameterMouseAlgerian mouse
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 806,592 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Mouse

Uncovered: 283,507,232 out of 2,728,222,451
Covered: 2,444,715,219 out of 2,728,222,451

Uncovered: 84,711 out of 36,555,494
Matches: 35,193,106 out of 36,555,494
Mismatches: 1,245,030 out of 36,555,494
Insertions: 32,647 out of 36,555,494
Identity over aligned base-pairs: 96.5%

Algerian mouse

Uncovered: 361,096,494 out of 2,625,571,169
Covered: 2,264,474,675 out of 2,625,571,169

Uncovered: 306,849 out of 33,001,570
Matches: 32,343,524 out of 33,001,570
Mismatches: 336,100 out of 33,001,570
Insertions: 15,097 out of 33,001,570
Identity over aligned base-pairs: 98.9%

Block size distribution

Size range All 806,592 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
8,354
47.9 kb
10 bp - 100 bp
77,503
4.2 Mb
20,685
1.3 Mb
100 bp - 1 kb
273,652
120.7 Mb
84,838
35.3 Mb
1 kb - 10 kb
389,755
1.4 Gb
39,646
109.6 Mb
10 kb - 100 kb
57,289
885.1 Mb
3,806
88.7 Mb
100 kb - 1 Mb
39
5.1 Mb
94
14.6 Mb
10 Mb - 100 Mb
8
582.7 Mb
100 Mb - 1 Gb
13
1.6 Gb