Mouse vs Guinea Pig LastZ results

Mouse (Mus musculus, GRCm39) and Guinea Pig (Cavia porcellus, Cavpor3.0) 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

ParameterMouseGuinea Pig
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 1,215,000 alignment blocks

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

Uncovered: 1,927,562,063 out of 2,728,222,451
Covered: 800,660,388 out of 2,728,222,451

Uncovered: 3,380,762 out of 72,028,242
Matches: 55,110,044 out of 72,028,242
Mismatches: 12,905,126 out of 72,028,242
Insertions: 632,310 out of 72,028,242
Identity over aligned base-pairs: 80.3%

Guinea Pig

Uncovered: 1,957,119,480 out of 2,723,219,641
Covered: 766,100,161 out of 2,723,219,641

Uncovered: 2,448,168 out of 59,632,306
Matches: 47,522,024 out of 59,632,306
Mismatches: 9,306,860 out of 59,632,306
Insertions: 355,254 out of 59,632,306
Identity over aligned base-pairs: 83.1%

Block size distribution

Size range All 1,215,000 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
11,664
77.1 kb
10 bp - 100 bp
109,252
6.3 Mb
15,689
1.1 Mb
100 bp - 1 kb
813,057
374.4 Mb
61,852
23.1 Mb
1 kb - 10 kb
280,799
483.9 Mb
17,449
39.5 Mb
10 kb - 100 kb
227
3.3 Mb
729
18.7 Mb
100 kb - 1 Mb
1
139.7 kb
278
113.2 Mb
1 Mb - 10 Mb
202
593.3 Mb
10 Mb - 100 Mb
6
79.2 Mb