Human vs Kakapo LastZ results

Human (Homo sapiens, GRCh38) and Kakapo (Strigops habroptila, bStrHab1_v1.p) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 99. 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

ParameterHumanKakapo
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 302,394 alignment blocks

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

Uncovered: 3,010,359,094 out of 3,096,649,726
Covered: 86,290,632 out of 3,096,649,726

Uncovered: 8,922,942 out of 35,602,741
Matches: 19,721,100 out of 35,602,741
Mismatches: 6,564,345 out of 35,602,741
Insertions: 394,354 out of 35,602,741
Identity over aligned base-pairs: 73.9%

Kakapo

Uncovered: 1,093,404,182 out of 1,165,621,973
Covered: 72,217,791 out of 1,165,621,973

Uncovered: 4,586,288 out of 26,948,573
Matches: 16,728,067 out of 26,948,573
Mismatches: 5,351,528 out of 26,948,573
Insertions: 282,690 out of 26,948,573
Identity over aligned base-pairs: 74.8%

Block size distribution

Size range All 302,394 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
596
3.2 kb
10 bp - 100 bp
38,396
2.9 Mb
10,202
758.8 kb
100 bp - 1 kb
253,137
71.6 Mb
89,172
31.3 Mb
1 kb - 10 kb
10,254
15.7 Mb
15,031
35.1 Mb
10 kb - 100 kb
10
212.4 kb
750
17.0 Mb
100 kb - 1 Mb
1
100.2 kb
36
6.3 Mb