Human vs Medium ground-finch LastZ results

Human (Homo sapiens, GRCh38) and Medium ground-finch (Geospiza fortis, GeoFor_1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 100. 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

ParameterHumanMedium ground-finch
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 303,455 alignment blocks

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

Uncovered: 3,015,147,187 out of 3,096,649,726
Covered: 81,502,539 out of 3,096,649,726

Uncovered: 10,345,206 out of 35,610,692
Matches: 18,217,054 out of 35,610,692
Mismatches: 6,732,782 out of 35,610,692
Insertions: 315,650 out of 35,610,692
Identity over aligned base-pairs: 72.1%

Medium ground-finch

Uncovered: 996,993,772 out of 1,065,292,181
Covered: 68,298,409 out of 1,065,292,181

Uncovered: 3,182,277 out of 23,528,819
Matches: 15,171,552 out of 23,528,819
Mismatches: 4,956,917 out of 23,528,819
Insertions: 218,073 out of 23,528,819
Identity over aligned base-pairs: 74.6%

Block size distribution

Size range All 303,455 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
953
4.9 kb
10 bp - 100 bp
41,471
3.1 Mb
12,708
945.3 kb
100 bp - 1 kb
250,853
69.0 Mb
95,275
32.4 Mb
1 kb - 10 kb
10,163
16.3 Mb
15,331
36.1 Mb
10 kb - 100 kb
14
299.1 kb
660
14.7 Mb
100 kb - 1 Mb
1
100.2 kb
27
4.7 Mb