Human vs Ryukyu mouse LastZ results

Human (Homo sapiens, GRCh38) and Ryukyu mouse (Mus caroli, CAROLI_EIJ_v1.1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 90. Human 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
Threshold for gapped extension (L)3000
Threshold for alignments between gapped alignment blocks (H)2200
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

ParameterHumanRyukyu mouse
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size10,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 1,536,111 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Human

Uncovered: 2,100,958,945 out of 3,099,750,718
Covered: 998,791,773 out of 3,099,750,718

Uncovered: 2,710,786 out of 38,571,754
Matches: 29,293,095 out of 38,571,754
Mismatches: 5,959,708 out of 38,571,754
Insertions: 608,165 out of 38,571,754
Identity over aligned base-pairs: 81.7%

Ryukyu mouse

Uncovered: 1,641,885,259 out of 2,553,112,587
Covered: 911,227,328 out of 2,553,112,587

Uncovered: 1,585,258 out of 32,770,133
Matches: 26,203,508 out of 32,770,133
Mismatches: 4,820,540 out of 32,770,133
Insertions: 160,827 out of 32,770,133
Identity over aligned base-pairs: 84.0%

Block size distribution

Size range All 1,536,111 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
21,556
145.6 kb
10 bp - 100 bp
147,833
8.0 Mb
12,107
825.3 kb
100 bp - 1 kb
1,020,286
472.9 Mb
45,009
16.7 Mb
1 kb - 10 kb
346,203
594.6 Mb
15,290
36.8 Mb
10 kb - 100 kb
232
3.0 Mb
1,128
28.8 Mb
100 kb - 1 Mb
1
139.5 kb
216
70.7 Mb
1 Mb - 10 Mb
129
453.3 Mb
10 Mb - 100 Mb
27
471.6 Mb