Chicken vs Great Tit LastZ results

Chicken (Gallus gallus, bGalGal1.mat.broiler.GRCg7b) and Great Tit (Parus major, Parus_major1.1) 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

ParameterChickenGreat Tit
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 729,310 alignment blocks

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

Uncovered: 303,604,990 out of 1,053,332,251
Covered: 749,727,261 out of 1,053,332,251

Uncovered: 3,287,521 out of 31,304,036
Matches: 23,679,404 out of 31,304,036
Mismatches: 4,059,573 out of 31,304,036
Insertions: 277,538 out of 31,304,036
Identity over aligned base-pairs: 84.5%

Great Tit

Uncovered: 269,823,738 out of 1,020,310,768
Covered: 750,487,030 out of 1,020,310,768

Uncovered: 1,290,905 out of 26,914,284
Matches: 22,008,610 out of 26,914,284
Mismatches: 3,339,952 out of 26,914,284
Insertions: 274,817 out of 26,914,284
Identity over aligned base-pairs: 85.9%

Block size distribution

Size range All 729,310 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
16,782
114.1 kb
10 bp - 100 bp
64,964
3.0 Mb
1,212
86.9 kb
100 bp - 1 kb
371,898
183.2 Mb
6,312
2.2 Mb
1 kb - 10 kb
274,770
604.4 Mb
1,818
4.7 Mb
10 kb - 100 kb
896
10.9 Mb
232
7.9 Mb
100 kb - 1 Mb
118
44.2 Mb
1 Mb - 10 Mb
67
227.9 Mb
10 Mb - 100 Mb
14
404.7 Mb
100 Mb - 1 Gb
1
109.9 Mb