Chicken vs Duck LastZ results

Chicken (Gallus gallus, bGalGal1.mat.broiler.GRCg7b) and Duck (Anas platyrhynchos platyrhynchos, CAU_duck1.0) 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

ParameterChickenDuck
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 713,132 alignment blocks

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

Uncovered: 218,716,894 out of 1,053,332,251
Covered: 834,615,357 out of 1,053,332,251

Uncovered: 2,752,874 out of 31,304,036
Matches: 24,727,020 out of 31,304,036
Mismatches: 3,639,481 out of 31,304,036
Insertions: 184,661 out of 31,304,036
Identity over aligned base-pairs: 86.6%

Duck

Uncovered: 289,593,221 out of 1,136,415,614
Covered: 846,822,393 out of 1,136,415,614

Uncovered: 2,239,953 out of 26,875,237
Matches: 21,945,146 out of 26,875,237
Mismatches: 2,418,240 out of 26,875,237
Insertions: 271,898 out of 26,875,237
Identity over aligned base-pairs: 89.1%

Block size distribution

Size range All 713,132 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
20,887
139.2 kb
10 bp - 100 bp
65,437
3.1 Mb
2,329
161.0 kb
100 bp - 1 kb
336,387
162.3 Mb
9,856
3.8 Mb
1 kb - 10 kb
288,252
690.8 Mb
7,766
20.6 Mb
10 kb - 100 kb
2,169
29.4 Mb
410
10.2 Mb
100 kb - 1 Mb
91
33.7 Mb
1 Mb - 10 Mb
99
357.8 Mb
10 Mb - 100 Mb
15
459.4 Mb