Chicken vs Medium ground-finch LastZ results

Chicken (Gallus gallus, bGalGal1.mat.broiler.GRCg7b) and Medium ground-finch (Geospiza fortis, GeoFor_1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 107. Chicken 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

ParameterChickenMedium ground-finch
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 740,881 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Chicken

Uncovered: 308,657,513 out of 1,053,332,251
Covered: 744,674,738 out of 1,053,332,251

Uncovered: 3,875,456 out of 31,304,036
Matches: 22,289,266 out of 31,304,036
Mismatches: 4,870,482 out of 31,304,036
Insertions: 268,832 out of 31,304,036
Identity over aligned base-pairs: 81.3%

Medium ground-finch

Uncovered: 320,993,747 out of 1,065,292,181
Covered: 744,298,434 out of 1,065,292,181

Uncovered: 1,178,189 out of 23,528,819
Matches: 19,223,816 out of 23,528,819
Mismatches: 2,946,493 out of 23,528,819
Insertions: 180,321 out of 23,528,819
Identity over aligned base-pairs: 86.0%

Block size distribution

Size range All 740,881 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
16,751
113.8 kb
10 bp - 100 bp
66,262
3.1 Mb
1,768
127.5 kb
100 bp - 1 kb
384,482
187.7 Mb
7,660
2.6 Mb
1 kb - 10 kb
272,622
594.2 Mb
1,892
4.9 Mb
10 kb - 100 kb
764
9.3 Mb
317
12.0 Mb
100 kb - 1 Mb
325
126.8 Mb
1 Mb - 10 Mb
185
503.2 Mb
10 Mb - 100 Mb
10
144.8 Mb