Chicken vs Eastern brown snake LastZ results

Chicken (Gallus gallus, bGalGal1.mat.broiler.GRCg7b) and Eastern brown snake (Pseudonaja textilis, EBS10Xv2-PRI) 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

ParameterChickenEastern brown snake
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 206,715 alignment blocks

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

Uncovered: 993,453,081 out of 1,053,332,251
Covered: 59,879,170 out of 1,053,332,251

Uncovered: 7,705,348 out of 31,304,036
Matches: 17,641,881 out of 31,304,036
Mismatches: 5,704,441 out of 31,304,036
Insertions: 252,366 out of 31,304,036
Identity over aligned base-pairs: 74.8%

Eastern brown snake

Uncovered: 1,531,593,025 out of 1,590,035,073
Covered: 58,442,048 out of 1,590,035,073

Uncovered: 7,841,787 out of 28,191,271
Matches: 15,352,498 out of 28,191,271
Mismatches: 4,784,487 out of 28,191,271
Insertions: 212,499 out of 28,191,271
Identity over aligned base-pairs: 75.4%

Block size distribution

Size range All 206,715 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
461
2.3 kb
10 bp - 100 bp
17,940
1.3 Mb
4,452
336.3 kb
100 bp - 1 kb
182,100
51.6 Mb
48,772
16.7 Mb
1 kb - 10 kb
6,201
9.6 Mb
8,202
21.4 Mb
10 kb - 100 kb
13
188.7 kb
723
16.7 Mb
100 kb - 1 Mb
44
7.6 Mb