Fundulus heteroclitus
Mummichog
GC content
39.74%
Whole genome
Non-coding
956 bp
D-loop 865 bp
Where Mummichog sits among 2,335 species
Whole-genome GC content against maximum lifespan. Mummichog has the 2,086th longest lifespan of them.
- This species
- Other ray-finned fishes
- Other classes
Base composition
Whole genome16,526 bp
- GC skew (G − C) / (G + C)
- −0.205
- AT skew (A − T) / (A + T)
- −0.049
About this record
- Lifespan source
- FishBase v26.06
- Based on
- an animal in the wild
- 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 genome16,526 bp
Protein-coding11,395 bp
12S rRNA943 bp
16S rRNA1,684 bp
All tRNA1,548 bp
D-loop865 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 975 bp | 38.05% | −0.245 | −0.189 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,045 bp | 40.10% | −0.408 | −0.096 | |||||
| COX1Cytochrome c oxidase subunit I | 1,542 bp | 38.00% | −0.119 | −0.163 | |||||
| COX2Cytochrome c oxidase subunit II | 691 bp | 36.61% | −0.178 | −0.091 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 33.33% | −0.464 | +0.089 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 35.97% | −0.317 | −0.146 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 42.09% | −0.248 | −0.093 | |||||
| ND3NADH dehydrogenase subunit 3 | 349 bp | 40.40% | −0.291 | −0.144 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 43.10% | −0.250 | −0.172 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,381 bp | 37.08% | −0.246 | −0.130 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,839 bp | 38.23% | −0.294 | −0.111 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 40.61% | −0.358 | +0.239 | |||||
| CYTBCytochrome b | 1,140 bp | 41.75% | −0.282 | −0.136 | |||||
| 12S rRNA12S ribosomal RNA | 943 bp | 45.92% | −0.030 | +0.169 | |||||
| 16S rRNA16S ribosomal RNA | 1,684 bp | 40.44% | −0.025 | +0.135 | |||||
| D-loopControl region (D-loop) | 865 bp | 36.76% | −0.176 | −0.049 |
Codon usage
Counts per codon, darker is more frequent3,804 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.5%
UUU156
UUC90
Leu L17.1%
UUA230
UUG29
CUU170
CUC73
CUA119
CUG31
Ile I7.6%
AUU227
AUC61
Met M4.4%
AUA127
AUG42
Val V5.9%
GUU82
GUC34
GUA94
GUG13
Ser S7.2%
UCU68
UCC65
UCA78
UCG5
AGU23
AGC36
Pro P5.4%
CCU96
CCC51
CCA49
CCG8
Thr T7.3%
ACU86
ACC94
ACA92
ACG7
Ala A8.4%
GCU108
GCC98
GCA104
GCG11
Tyr Y3.1%
UAU79
UAC40
His H2.9%
CAU57
CAC52
Gln Q2.5%
CAA83
CAG12
Asn N3.0%
AAU80
AAC34
Lys K1.9%
AAA61
AAG13
Asp D2.1%
GAU48
GAC31
Glu E2.6%
GAA79
GAG20
Cys C0.9%
UGU18
UGC15
Trp W3.0%
UGA108
UGG7
Arg R1.9%
CGU15
CGC1
CGA47
CGG9
Gly G6.0%
GGU64
GGC62
GGA70
GGG34
Stop 0.2%
UAA7
UAG1
AGA0
AGG0
Genome map
38 annotated features in NC_012312.1Hover, 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 (39.7%, 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 | 68 | 68 bp | + | – |
| 12S rRNA | Ribosomal RNA | 69 | 1,011 | 943 bp | + | 45.9% |
| tRNA-Val | Transfer RNA | 1,012 | 1,083 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,084 | 2,767 | 1,684 bp | + | 40.4% |
| tRNA-Leu (UUR) | Transfer RNA | 2,768 | 2,841 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,842 | 3,816 | 975 bp | + | 38.1% |
| tRNA-Ile | Transfer RNA | 3,824 | 3,893 | 70 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,893 | 3,963 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,963 | 4,031 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,032 | 5,076 | 1,045 bp | + | 40.1% |
| tRNA-Trp | Transfer RNA | 5,077 | 5,148 | 72 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,151 | 5,219 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,222 | 5,294 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,332 | 5,395 | 64 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,397 | 5,466 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,474 | 7,015 | 1,542 bp | + | 38.0% |
| tRNA-Ser (UCN) | Transfer RNA | 7,025 | 7,096 | 72 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,100 | 7,170 | 71 bp | + | – |
| COX2 | Protein-coding gene | 7,180 | 7,870 | 691 bp | + | 36.6% |
| tRNA-Lys | Transfer RNA | 7,871 | 7,944 | 74 bp | + | – |
| ATP8 | Protein-coding gene | 7,948 | 8,115 | 168 bp | + | 33.3% |
| ATP6 | Protein-coding gene | 8,106 | 8,789 | 684 bp | + | 36.0% |
| COX3 | Protein-coding gene | 8,789 | 9,572 | 784 bp | + | 42.1% |
| tRNA-Gly | Transfer RNA | 9,573 | 9,644 | 72 bp | + | – |
| ND3 | Protein-coding gene | 9,645 | 9,993 | 349 bp | + | 40.4% |
| tRNA-Arg | Transfer RNA | 9,994 | 10,062 | 69 bp | + | – |
| ND4L | Protein-coding gene | 10,063 | 10,359 | 297 bp | + | 43.1% |
| ND4 | Protein-coding gene | 10,353 | 11,733 | 1,381 bp | + | 37.1% |
| tRNA-His | Transfer RNA | 11,734 | 11,802 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,803 | 11,870 | 68 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,878 | 11,950 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,951 | 13,789 | 1,839 bp | + | 38.2% |
| ND6 | Protein-coding gene | 13,786 | 14,307 | 522 bp | − | 40.6% |
| tRNA-Glu | Transfer RNA | 14,308 | 14,375 | 68 bp | − | – |
| CYTB | Protein-coding gene | 14,379 | 15,518 | 1,140 bp | + | 41.8% |
| tRNA-Thr | Transfer RNA | 15,520 | 15,592 | 73 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,592 | 15,661 | 70 bp | − | – |
| D-loop | Control region | 15,662 | 16,526 | 865 bp | – | 36.8% |