Japanese medaka HdrR vs Nile tilapia LastZ results

Japanese medaka HdrR (Oryzias latipes, ASM223467v1) and Nile tilapia (Oreochromis niloticus, O_niloticus_UMD_NMBU) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 99. 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 HdrRNile tilapia
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 355,529 alignment blocks

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

Uncovered: 567,859,164 out of 734,057,086
Covered: 166,197,922 out of 734,057,086

Uncovered: 5,706,009 out of 40,334,262
Matches: 27,569,595 out of 40,334,262
Mismatches: 6,797,101 out of 40,334,262
Insertions: 261,557 out of 40,334,262
Identity over aligned base-pairs: 79.6%

Nile tilapia

Uncovered: 831,468,849 out of 1,005,681,550
Covered: 174,212,701 out of 1,005,681,550

Uncovered: 16,697,081 out of 51,713,280
Matches: 27,545,175 out of 51,713,280
Mismatches: 6,792,806 out of 51,713,280
Insertions: 678,218 out of 51,713,280
Identity over aligned base-pairs: 78.7%

Block size distribution

Size range All 355,529 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,178
7.3 kb
10 bp - 100 bp
26,827
1.7 Mb
2,543
183.1 kb
100 bp - 1 kb
283,599
111.7 Mb
12,771
4.3 Mb
1 kb - 10 kb
43,903
71.3 Mb
3,147
8.5 Mb
10 kb - 100 kb
22
313.4 kb
466
13.4 Mb
100 kb - 1 Mb
147
42.1 Mb
1 Mb - 10 Mb
34
116.5 Mb