Mouse vs Shrew mouse LastZ results

Mouse (Mus musculus, GRCm39) and Shrew mouse (Mus pahari, PAHARI_EIJ_v1.1) 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

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

Statistics over 1,371,457 alignment blocks

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

Uncovered: 544,613,087 out of 2,728,222,451
Covered: 2,183,609,364 out of 2,728,222,451

Uncovered: 172,043 out of 36,555,494
Matches: 34,173,733 out of 36,555,494
Mismatches: 2,138,572 out of 36,555,494
Insertions: 71,146 out of 36,555,494
Identity over aligned base-pairs: 93.9%

Shrew mouse

Uncovered: 465,125,493 out of 2,475,012,951
Covered: 2,009,887,458 out of 2,475,012,951

Uncovered: 94,509 out of 32,578,444
Matches: 31,271,705 out of 32,578,444
Mismatches: 1,167,680 out of 32,578,444
Insertions: 44,550 out of 32,578,444
Identity over aligned base-pairs: 96.3%

Block size distribution

Size range All 1,371,457 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
22,636
138.7 kb
10 bp - 100 bp
140,856
7.7 Mb
36,142
2.3 Mb
100 bp - 1 kb
578,700
260.2 Mb
103,180
35.1 Mb
1 kb - 10 kb
615,830
1.8 Gb
30,398
83.4 Mb
10 kb - 100 kb
13,280
189.5 Mb
3,477
73.8 Mb
100 kb - 1 Mb
155
20.0 Mb
224
29.9 Mb
1 Mb - 10 Mb
6
35.2 Mb
10 Mb - 100 Mb
26
1.4 Gb
100 Mb - 1 Gb
5
619.6 Mb