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Human vs Chinese medaka LastZ results

Human (Homo sapiens, GRCh38) and Chinese medaka (Oryzias sinensis, ASM858656v1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 100. 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
HSP threshold (K)3000
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

ParameterHumanChinese medaka
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size10,100,000
Masking options

Statistics over 241,687 alignment blocks

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

Uncovered: 3,063,865,145 out of 3,099,750,718
Covered: 35,885,573 out of 3,099,750,718

Uncovered: 17,970,117 out of 38,571,754
Matches: 13,998,362 out of 38,571,754
Mismatches: 6,230,601 out of 38,571,754
Insertions: 372,674 out of 38,571,754
Identity over aligned base-pairs: 67.9%

Chinese medaka

Uncovered: 780,903,951 out of 813,986,518
Covered: 33,082,567 out of 813,986,518

Uncovered: 13,633,870 out of 33,987,082
Matches: 13,914,613 out of 33,987,082
Mismatches: 6,029,436 out of 33,987,082
Insertions: 409,163 out of 33,987,082
Identity over aligned base-pairs: 68.4%

Block size distribution

Size range All 241,687 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,518
6.6 kb
10 bp - 100 bp
48,874
3.7 Mb
15,143
1.1 Mb
100 bp - 1 kb
189,262
38.2 Mb
82,251
24.8 Mb
1 kb - 10 kb
1,935
3.5 Mb
9,341
18.3 Mb
10 kb - 100 kb
97
2.3 Mb
143
3.2 Mb
100 kb - 1 Mb
1
100.2 kb
2
267.1 kb