Japanese medaka HdrR vs Indian medaka LastZ results

Japanese medaka HdrR (Oryzias latipes, ASM223467v1) and Indian medaka (Oryzias melastigma, Om_v0.7.RACA) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 94. Japanese medaka HdrR 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

ParameterJapanese medaka HdrRIndian medaka
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 522,170 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Japanese medaka HdrR

Uncovered: 317,764,289 out of 734,057,086
Covered: 416,292,797 out of 734,057,086

Uncovered: 3,775,995 out of 40,334,262
Matches: 32,933,081 out of 40,334,262
Mismatches: 3,315,155 out of 40,334,262
Insertions: 310,031 out of 40,334,262
Identity over aligned base-pairs: 90.1%

Indian medaka

Uncovered: 385,973,684 out of 779,452,910
Covered: 393,479,226 out of 779,452,910

Uncovered: 3,226,165 out of 37,626,793
Matches: 31,393,587 out of 37,626,793
Mismatches: 2,832,760 out of 37,626,793
Insertions: 174,281 out of 37,626,793
Identity over aligned base-pairs: 91.3%

Block size distribution

Size range All 522,170 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
6,745
44.5 kb
10 bp - 100 bp
51,815
2.9 Mb
6,192
424.7 kb
100 bp - 1 kb
303,450
139.7 Mb
21,341
7.5 Mb
1 kb - 10 kb
159,865
294.2 Mb
6,098
16.0 Mb
10 kb - 100 kb
295
3.8 Mb
427
14.6 Mb
100 kb - 1 Mb
133
29.7 Mb
1 Mb - 10 Mb
22
82.2 Mb
10 Mb - 100 Mb
20
290.2 Mb