Poecilia sphenops
Molly
GC content
43.40%
Whole genome
Non-coding
977 bp
D-loop 870 bp
Where Molly sits among 2,335 species
Whole-genome GC content against maximum lifespan. Molly has the 2,200th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,533 bp
- GC skew (G − C) / (G + C)
- −0.329
- AT skew (A − T) / (A + T)
- +0.041
About this record
- Lifespan source
- FishBase v26.06
- Based on
- an animal in captivity
- Data quality
- acceptable
- Licence
- CC BY-NC 4.0
- Status
- New in build 2
- In the database since
- build 2 (2026-11-13)
The lifespan value is for non-commercial use only; the genome data is not restricted by it.
Every change against the 2015 build is in the changelog download.
Composition by region
Reference (L) strand as deposited in RefSeqWhole genome16,533 bp
Protein-coding11,381 bp
12S rRNA946 bp
16S rRNA1,676 bp
All tRNA1,553 bp
D-loop870 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 44.00% | −0.441 | −0.051 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,045 bp | 43.45% | −0.542 | +0.036 | |||||
| COX1Cytochrome c oxidase subunit I | 1,557 bp | 44.19% | −0.247 | −0.079 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 40.81% | −0.255 | +0.022 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 37.50% | −0.460 | +0.067 | |||||
| ATP6ATP synthase F0 subunit 6 | 695 bp | 44.46% | −0.405 | −0.057 | |||||
| COX3Cytochrome c oxidase subunit III | 785 bp | 43.95% | −0.304 | −0.018 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 42.98% | −0.320 | −0.146 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 46.13% | −0.387 | −0.100 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 44.10% | −0.448 | −0.021 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,809 bp | 42.40% | −0.458 | +0.012 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 45.02% | −0.574 | +0.415 | |||||
| CYTBCytochrome b | 1,140 bp | 43.95% | −0.397 | −0.067 | |||||
| 12S rRNA12S ribosomal RNA | 946 bp | 47.99% | −0.141 | +0.236 | |||||
| 16S rRNA16S ribosomal RNA | 1,676 bp | 44.03% | −0.163 | +0.230 | |||||
| D-loopControl region (D-loop) | 870 bp | 34.37% | −0.177 | −0.002 |
Codon usage
Counts per codon, darker is more frequent3,802 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.4%
UUU100
UUC144
Leu L17.3%
UUA134
UUG24
CUU150
CUC128
CUA192
CUG29
Ile I8.1%
AUU178
AUC131
Met M4.1%
AUA113
AUG42
Val V4.6%
GUU49
GUC39
GUA70
GUG16
Ser S6.8%
UCU47
UCC80
UCA71
UCG5
AGU18
AGC37
Pro P5.8%
CCU59
CCC94
CCA66
CCG3
Thr T7.9%
ACU60
ACC137
ACA103
ACG2
Ala A8.4%
GCU61
GCC140
GCA114
GCG5
Tyr Y3.0%
UAU45
UAC69
His H2.9%
CAU32
CAC77
Gln Q2.6%
CAA90
CAG7
Asn N3.4%
AAU54
AAC74
Lys K1.9%
AAA66
AAG6
Asp D2.1%
GAU42
GAC36
Glu E2.4%
GAA84
GAG9
Cys C0.8%
UGU11
UGC20
Trp W3.1%
UGA105
UGG12
Arg R2.0%
CGU9
CGC20
CGA44
CGG4
Gly G6.3%
GGU39
GGC70
GGA93
GGG36
Stop 0.2%
UAA6
UAG1
AGA0
AGG0
Genome map
38 annotated features in NC_026579.1Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.
- Protein-coding13
- rRNA2
- tRNA22
- D-loop1
- Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
- Middle ring: GC% of each gene against the whole genome (43.4%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
| Feature | Type | Start | End | Length | Strand | GC |
|---|---|---|---|---|---|---|
| tRNA-Phe | Transfer RNA | 1 | 69 | 69 bp | + | – |
| 12S rRNA | Ribosomal RNA | 70 | 1,015 | 946 bp | + | 48.0% |
| tRNA-Val | Transfer RNA | 1,016 | 1,086 | 71 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,087 | 2,762 | 1,676 bp | + | 44.0% |
| tRNA-Leu (UUR) | Transfer RNA | 2,763 | 2,836 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,837 | 3,811 | 975 bp | + | 44.0% |
| tRNA-Ile | Transfer RNA | 3,818 | 3,888 | 71 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,888 | 3,958 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,958 | 4,026 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,027 | 5,071 | 1,045 bp | + | 43.5% |
| tRNA-Trp | Transfer RNA | 5,072 | 5,144 | 73 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,148 | 5,216 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,218 | 5,290 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,329 | 5,394 | 66 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,396 | 5,465 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,467 | 7,023 | 1,557 bp | + | 44.2% |
| tRNA-Ser (UCN) | Transfer RNA | 7,025 | 7,095 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,098 | 7,168 | 71 bp | + | – |
| COX2 | Protein-coding gene | 7,178 | 7,868 | 691 bp | + | 40.8% |
| tRNA-Lys | Transfer RNA | 7,869 | 7,941 | 73 bp | + | – |
| ATP8 | Protein-coding gene | 7,945 | 8,112 | 168 bp | + | 37.5% |
| ATP6 | Protein-coding gene | 8,091 | 8,785 | 695 bp | + | 44.5% |
| COX3 | Protein-coding gene | 8,786 | 9,570 | 785 bp | + | 44.0% |
| tRNA-Gly | Transfer RNA | 9,571 | 9,641 | 71 bp | + | – |
| ND3 | Protein-coding gene | 9,642 | 9,990 | 349 bp | + | 43.0% |
| tRNA-Arg | Transfer RNA | 9,991 | 10,059 | 69 bp | + | – |
| ND4L | Protein-coding gene | 10,060 | 10,356 | 297 bp | + | 46.1% |
| ND4 | Protein-coding gene | 10,350 | 11,730 | 1,381 bp | + | 44.1% |
| tRNA-His | Transfer RNA | 11,731 | 11,800 | 70 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,801 | 11,870 | 70 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,880 | 11,952 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,982 | 13,790 | 1,809 bp | + | 42.4% |
| ND6 | Protein-coding gene | 13,787 | 14,308 | 522 bp | − | 45.0% |
| tRNA-Glu | Transfer RNA | 14,309 | 14,377 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,382 | 15,521 | 1,140 bp | + | 44.0% |
| tRNA-Thr | Transfer RNA | 15,522 | 15,594 | 73 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,594 | 15,663 | 70 bp | − | – |
| D-loop | Control region | 15,664 | 16,533 | 870 bp | – | 34.4% |