Platypus vs Coelacanth LastZ results

Platypus (Ornithorhynchus anatinus, mOrnAna1.p.v1) and Coelacanth (Latimeria chalumnae, LatCha1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 100. Platypus 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

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

Statistics over 219,870 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Platypus

Uncovered: 1,813,572,076 out of 1,858,552,590
Covered: 44,980,514 out of 1,858,552,590

Uncovered: 8,928,864 out of 31,202,085
Matches: 15,679,251 out of 31,202,085
Mismatches: 6,337,763 out of 31,202,085
Insertions: 256,207 out of 31,202,085
Identity over aligned base-pairs: 70.4%

Coelacanth

Uncovered: 2,815,621,654 out of 2,860,591,921
Covered: 44,970,267 out of 2,860,591,921

Uncovered: 8,691,047 out of 30,870,617
Matches: 15,638,796 out of 30,870,617
Mismatches: 6,283,348 out of 30,870,617
Insertions: 257,426 out of 30,870,617
Identity over aligned base-pairs: 70.5%

Block size distribution

Size range All 219,870 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
788
3.1 kb
10 bp - 100 bp
30,510
2.4 Mb
16,414
1.3 Mb
100 bp - 1 kb
185,143
42.7 Mb
106,718
29.8 Mb
1 kb - 10 kb
3,311
5.6 Mb
8,167
17.0 Mb
10 kb - 100 kb
117
2.4 Mb
249
4.8 Mb
100 kb - 1 Mb
1
138.3 kb
2
337.9 kb