Chicken vs Goodes thornscrub tortoise LastZ results

Chicken (Gallus gallus, bGalGal1.mat.broiler.GRCg7b) and Goodes thornscrub tortoise (Gopherus evgoodei, rGopEvg1_v1.p) 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

ParameterChickenGoodes thornscrub tortoise
Chunk size10,000,00010,100,000
Overlap0100,000
Group set size10,100,00010,100,000
Masking options

Statistics over 535,801 alignment blocks

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

Uncovered: 716,559,895 out of 1,053,332,251
Covered: 336,772,356 out of 1,053,332,251

Uncovered: 4,505,194 out of 31,304,036
Matches: 21,723,790 out of 31,304,036
Mismatches: 4,891,250 out of 31,304,036
Insertions: 183,802 out of 31,304,036
Identity over aligned base-pairs: 81.1%

Goodes thornscrub tortoise

Uncovered: 1,950,705,375 out of 2,298,547,364
Covered: 347,841,989 out of 2,298,547,364

Uncovered: 7,358,478 out of 31,217,359
Matches: 19,389,693 out of 31,217,359
Mismatches: 4,208,491 out of 31,217,359
Insertions: 260,697 out of 31,217,359
Identity over aligned base-pairs: 81.3%

Block size distribution

Size range All 535,801 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
2,026
13.7 kb
10 bp - 100 bp
28,019
1.7 Mb
1,625
117.2 kb
100 bp - 1 kb
393,269
184.1 Mb
11,185
4.2 Mb
1 kb - 10 kb
112,463
183.0 Mb
3,087
7.6 Mb
10 kb - 100 kb
24
299.5 kb
363
10.4 Mb
100 kb - 1 Mb
96
32.1 Mb
1 Mb - 10 Mb
53
167.8 Mb
10 Mb - 100 Mb
5
146.9 Mb