Zebrafish vs Mummichog LastZ results

Zebrafish (Danio rerio, GRCz11) and Mummichog (Fundulus heteroclitus, Fundulus_heteroclitus-3.0.2) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 94. Zebrafish 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

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

Statistics over 321,248 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Zebrafish

Uncovered: 1,304,588,465 out of 1,373,471,384
Covered: 68,882,919 out of 1,373,471,384

Uncovered: 9,723,725 out of 42,031,845
Matches: 22,718,094 out of 42,031,845
Mismatches: 9,124,876 out of 42,031,845
Insertions: 465,150 out of 42,031,845
Identity over aligned base-pairs: 70.3%

Mummichog

Uncovered: 960,598,390 out of 1,021,898,560
Covered: 61,300,170 out of 1,021,898,560

Uncovered: 7,423,405 out of 35,837,024
Matches: 20,176,147 out of 35,837,024
Mismatches: 7,657,827 out of 35,837,024
Insertions: 579,645 out of 35,837,024
Identity over aligned base-pairs: 71.0%

Block size distribution

Size range All 321,248 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
2,085
9.1 kb
10 bp - 100 bp
50,483
3.7 Mb
20,115
1.5 Mb
100 bp - 1 kb
261,489
64.5 Mb
103,980
32.5 Mb
1 kb - 10 kb
6,762
12.2 Mb
16,372
37.6 Mb
10 kb - 100 kb
429
8.5 Mb
853
17.1 Mb
100 kb - 1 Mb
2
226.4 kb