Human vs Goodes thornscrub tortoise LastZ results

Human (Homo sapiens, GRCh38) and Goodes thornscrub tortoise (Gopherus evgoodei, rGopEvg1_v1.p) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 100. Human 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

ParameterHumanGoodes thornscrub tortoise
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 374,398 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Human

Uncovered: 2,989,961,968 out of 3,096,649,726
Covered: 106,687,758 out of 3,096,649,726

Uncovered: 7,050,361 out of 35,610,692
Matches: 21,290,734 out of 35,610,692
Mismatches: 6,868,166 out of 35,610,692
Insertions: 401,431 out of 35,610,692
Identity over aligned base-pairs: 74.5%

Goodes thornscrub tortoise

Uncovered: 2,201,258,929 out of 2,298,547,364
Covered: 97,288,435 out of 2,298,547,364

Uncovered: 5,069,803 out of 31,217,359
Matches: 19,552,275 out of 31,217,359
Mismatches: 6,244,732 out of 31,217,359
Insertions: 350,549 out of 31,217,359
Identity over aligned base-pairs: 74.8%

Block size distribution

Size range All 374,398 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
875
4.4 kb
10 bp - 100 bp
44,023
3.2 Mb
14,670
1.1 Mb
100 bp - 1 kb
315,089
92.3 Mb
130,137
45.6 Mb
1 kb - 10 kb
14,401
22.5 Mb
20,064
45.3 Mb
10 kb - 100 kb
9
232.1 kb
816
17.9 Mb
100 kb - 1 Mb
1
100.2 kb
44
8.4 Mb