Human vs Duck LastZ results

Human (Homo sapiens, GRCh38) and Duck (Anas platyrhynchos platyrhynchos, CAU_duck1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 96. 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
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

ParameterHumanDuck
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 299,682 alignment blocks

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

Uncovered: 3,006,486,319 out of 3,096,649,726
Covered: 90,163,407 out of 3,096,649,726

Uncovered: 8,867,772 out of 35,604,148
Matches: 19,630,507 out of 35,604,148
Mismatches: 6,739,840 out of 35,604,148
Insertions: 366,029 out of 35,604,148
Identity over aligned base-pairs: 73.4%

Duck

Uncovered: 1,063,713,672 out of 1,136,415,614
Covered: 72,701,942 out of 1,136,415,614

Uncovered: 5,808,927 out of 26,875,237
Matches: 15,700,486 out of 26,875,237
Mismatches: 5,086,017 out of 26,875,237
Insertions: 279,807 out of 26,875,237
Identity over aligned base-pairs: 74.5%

Block size distribution

Size range All 299,682 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
705
3.6 kb
10 bp - 100 bp
37,557
2.8 Mb
10,351
775.8 kb
100 bp - 1 kb
250,240
71.0 Mb
93,493
33.1 Mb
1 kb - 10 kb
11,092
18.7 Mb
16,437
38.5 Mb
10 kb - 100 kb
87
1.6 Mb
746
16.6 Mb
100 kb - 1 Mb
1
120.8 kb
30
5.4 Mb