Chicken vs Common canary LastZ results

Chicken (Gallus gallus, bGalGal1.mat.broiler.GRCg7b) and Common canary (Serinus canaria, SCA1) 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

ParameterChickenCommon canary
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 735,256 alignment blocks

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

Uncovered: 310,479,392 out of 1,053,332,251
Covered: 742,852,859 out of 1,053,332,251

Uncovered: 3,535,250 out of 31,304,036
Matches: 23,077,279 out of 31,304,036
Mismatches: 4,423,175 out of 31,304,036
Insertions: 268,332 out of 31,304,036
Identity over aligned base-pairs: 83.1%

Common canary

Uncovered: 409,211,864 out of 1,152,083,301
Covered: 742,871,437 out of 1,152,083,301

Uncovered: 1,475,689 out of 25,036,602
Matches: 20,246,264 out of 25,036,602
Mismatches: 3,104,232 out of 25,036,602
Insertions: 210,417 out of 25,036,602
Identity over aligned base-pairs: 85.9%

Block size distribution

Size range All 735,256 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
16,753
113.6 kb
10 bp - 100 bp
65,917
3.1 Mb
2,041
145.6 kb
100 bp - 1 kb
380,233
185.9 Mb
10,144
3.6 Mb
1 kb - 10 kb
271,525
593.9 Mb
2,005
5.1 Mb
10 kb - 100 kb
825
10.1 Mb
326
10.7 Mb
100 kb - 1 Mb
3
369.1 kb
214
78.4 Mb
1 Mb - 10 Mb
97
307.4 Mb
10 Mb - 100 Mb
12
388.1 Mb