Human vs Bonobo LastZ results

Human (Homo sapiens, GRCh38) and Bonobo (Pan paniscus, panpan1.1) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 91. 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)5000
Threshold for gapped extension (L)5000
Threshold for alignments between gapped alignment blocks (H)3000
Masking count (M)10
Seed and Transition value (T)1
Scoring matrix (Q)
Primate:
    A    C    G    T
   90 -330 -236 -356
 -330  100 -318 -236
 -236 -318  100 -330
 -356 -236 -330   90

Chunking parameters

ParameterHumanBonobo
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 246,257 alignment blocks

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

Uncovered: 295,408,705 out of 3,096,649,726
Covered: 2,801,241,021 out of 3,096,649,726

Uncovered: 399,041 out of 35,444,608
Matches: 33,666,417 out of 35,444,608
Mismatches: 1,350,071 out of 35,444,608
Insertions: 29,079 out of 35,444,608
Identity over aligned base-pairs: 96.1%

Bonobo

Uncovered: 575,581,745 out of 3,286,643,896
Covered: 2,711,062,151 out of 3,286,643,896

Uncovered: 308,972 out of 33,835,525
Matches: 33,222,850 out of 33,835,525
Mismatches: 290,584 out of 33,835,525
Insertions: 13,119 out of 33,835,525
Identity over aligned base-pairs: 99.1%

Block size distribution

Size range All 246,257 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
2,661
14.8 kb
10 bp - 100 bp
21,504
1.1 Mb
8,405
492.9 kb
100 bp - 1 kb
50,558
20.0 Mb
19,755
6.2 Mb
1 kb - 10 kb
95,456
406.0 Mb
5,734
16.9 Mb
10 kb - 100 kb
74,188
2.1 Gb
1,760
55.6 Mb
100 kb - 1 Mb
1,890
240.3 Mb
226
43.7 Mb
1 Mb - 10 Mb
11
21.9 Mb
10 Mb - 100 Mb
17
871.4 Mb
100 Mb - 1 Gb
13
1.8 Gb