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
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 size10,100,000
Masking options{default_soft_masking => 1}{default_soft_masking => 1}

Statistics over 309,609 alignment blocks

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

Uncovered: 3,009,587,311 out of 3,099,750,718
Covered: 90,163,407 out of 3,099,750,718

Uncovered: 11,442,150 out of 38,571,754
Matches: 19,884,582 out of 38,571,754
Mismatches: 6,851,494 out of 38,571,754
Insertions: 393,528 out of 38,571,754
Identity over aligned base-pairs: 73.3%

Duck

Uncovered: 1,063,633,551 out of 1,136,415,614
Covered: 72,782,063 out of 1,136,415,614

Uncovered: 5,806,423 out of 26,875,237
Matches: 15,702,184 out of 26,875,237
Mismatches: 5,086,809 out of 26,875,237
Insertions: 279,821 out of 26,875,237
Identity over aligned base-pairs: 74.5%

Block size distribution

Size range All 309,609 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
732
3.7 kb
10 bp - 100 bp
39,024
2.9 Mb
10,730
803.9 kb
100 bp - 1 kb
258,249
73.1 Mb
96,531
34.2 Mb
1 kb - 10 kb
11,515
19.6 Mb
17,151
40.2 Mb
10 kb - 100 kb
88
1.6 Mb
761
16.8 Mb
100 kb - 1 Mb
1
120.8 kb
30
5.4 Mb