Human vs Sheepshead minnow LastZ results

Human (Homo sapiens, GRCh38) and Sheepshead minnow (Cyprinodon variegatus, C_variegatus-1.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 94. 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

ParameterHumanSheepshead minnow
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size010,100,000
Masking options

Statistics over 241,759 alignment blocks

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

Uncovered: 3,062,098,909 out of 3,096,649,726
Covered: 34,550,817 out of 3,096,649,726

Uncovered: 15,224,146 out of 35,619,351
Matches: 13,892,559 out of 35,619,351
Mismatches: 6,145,253 out of 35,619,351
Insertions: 357,393 out of 35,619,351
Identity over aligned base-pairs: 68.1%

Sheepshead minnow

Uncovered: 1,002,818,791 out of 1,035,184,475
Covered: 32,365,684 out of 1,035,184,475

Uncovered: 13,343,120 out of 35,763,670
Matches: 15,368,115 out of 35,763,670
Mismatches: 6,641,863 out of 35,763,670
Insertions: 410,572 out of 35,763,670
Identity over aligned base-pairs: 68.5%

Block size distribution

Size range All 241,759 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
1,397
5.9 kb
10 bp - 100 bp
47,993
3.6 Mb
16,034
1.2 Mb
100 bp - 1 kb
190,062
38.1 Mb
86,717
25.6 Mb
1 kb - 10 kb
2,301
4.0 Mb
9,157
18.0 Mb
10 kb - 100 kb
5
109.8 kb
63
944.9 kb
100 kb - 1 Mb
1
100.2 kb
2
255.9 kb