Human vs Greater horseshoe bat LastZ results

Human (Homo sapiens, GRCh38) and Greater horseshoe bat (Rhinolophus ferrumequinum, mRhiFer1_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

ParameterHumanGreater horseshoe bat
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 1,802,180 alignment blocks

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

Uncovered: 1,566,081,877 out of 3,096,649,726
Covered: 1,530,567,849 out of 3,096,649,726

Uncovered: 783,736 out of 35,619,351
Matches: 30,318,286 out of 35,619,351
Mismatches: 4,234,749 out of 35,619,351
Insertions: 282,580 out of 35,619,351
Identity over aligned base-pairs: 87.0%

Greater horseshoe bat

Uncovered: 641,342,187 out of 2,075,768,562
Covered: 1,434,426,375 out of 2,075,768,562

Uncovered: 953,098 out of 32,593,495
Matches: 27,928,245 out of 32,593,495
Mismatches: 3,567,784 out of 32,593,495
Insertions: 144,368 out of 32,593,495
Identity over aligned base-pairs: 88.3%

Block size distribution

Size range All 1,802,180 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
60,377
411.5 kb
10 bp - 100 bp
227,159
10.6 Mb
18,330
1.2 Mb
100 bp - 1 kb
973,306
448.1 Mb
54,890
19.7 Mb
1 kb - 10 kb
539,952
1.1 Gb
16,847
41.6 Mb
10 kb - 100 kb
1,376
19.3 Mb
1,471
36.1 Mb
100 kb - 1 Mb
10
1.2 Mb
134
41.0 Mb
1 Mb - 10 Mb
70
270.5 Mb
10 Mb - 100 Mb
41
1.2 Gb