Human vs Lyretail cichlid LastZ results

Human (Homo sapiens, GRCh38) and Lyretail cichlid (Neolamprologus brichardi, NeoBri1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 94. 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

ParameterHumanLyretail cichlid
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size10,100,000
Masking options

Statistics over 251,617 alignment blocks

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

Uncovered: 3,058,143,692 out of 3,099,750,718
Covered: 41,607,026 out of 3,099,750,718

Uncovered: 17,601,348 out of 38,571,754
Matches: 14,052,308 out of 38,571,754
Mismatches: 6,561,515 out of 38,571,754
Insertions: 356,583 out of 38,571,754
Identity over aligned base-pairs: 67.0%

Lyretail cichlid

Uncovered: 811,539,864 out of 847,910,432
Covered: 36,370,568 out of 847,910,432

Uncovered: 11,541,748 out of 33,846,093
Matches: 15,287,424 out of 33,846,093
Mismatches: 6,613,035 out of 33,846,093
Insertions: 403,886 out of 33,846,093
Identity over aligned base-pairs: 68.5%

Block size distribution

Size range All 251,617 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,617
7.1 kb
10 bp - 100 bp
50,252
3.8 Mb
15,998
1.2 Mb
100 bp - 1 kb
195,597
39.9 Mb
84,450
25.7 Mb
1 kb - 10 kb
3,972
7.4 Mb
10,973
22.4 Mb
10 kb - 100 kb
178
3.6 Mb
258
5.2 Mb
100 kb - 1 Mb
1
100.2 kb
3
356.5 kb