Ornithorhynchus anatinus
Duck-billed platypus
GC content
37.13%
Whole genome
Non-coding
1,691 bp
D-loop 1,559 bp
Where Duck-billed platypus sits among 2,335 species
Whole-genome GC content against maximum lifespan. Duck-billed platypus has the 760th longest lifespan of them.
- This species
- Other mammals
- Other classes
Base composition
Whole genome17,019 bp
- GC skew (G − C) / (G + C)
- −0.266
- AT skew (A − T) / (A + T)
- −0.000
Life history
- Maximum lifespan
- 22.6 years
- Adult weight
- 1.3 kg
- Basal metabolic rate
- 1.931 W
- Body temperature
- 34 °C
- Female sexual maturity
- 548 days
- Male sexual maturity
- 548 days
- Gestation or incubation
- 17 days
- Litter or clutch size
- 2
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 02622)
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in captivity
- Data quality
- acceptable, small sample
- Licence
- Free to use, subject to the Human Ageing Genomic Resources conditions of use
- Status
- Updated in build 2
- In the database since
- build 1 (2015-07-01)
- Last changed
- build 2 (2026-11-13)
Every change against the 2015 build is in the changelog download.
Composition by region
Reference (L) strand as deposited in RefSeqWhole genome17,019 bp
Protein-coding11,332 bp
12S rRNA943 bp
16S rRNA1,562 bp
All tRNA1,502 bp
D-loop1,559 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 957 bp | 37.72% | −0.391 | −0.037 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,044 bp | 37.26% | −0.501 | +0.075 | |||||
| COX1Cytochrome c oxidase subunit I | 1,542 bp | 38.65% | −0.154 | −0.140 | |||||
| COX2Cytochrome c oxidase subunit II | 693 bp | 35.79% | −0.315 | +0.011 | |||||
| ATP8ATP synthase F0 subunit 8 | 210 bp | 32.38% | −0.441 | 0.000 | |||||
| ATP6ATP synthase F0 subunit 6 | 681 bp | 36.86% | −0.394 | −0.056 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 40.05% | −0.274 | −0.098 | |||||
| ND3NADH dehydrogenase subunit 3 | 348 bp | 35.35% | −0.236 | −0.093 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 34.68% | −0.320 | −0.082 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,378 bp | 37.59% | −0.375 | −0.058 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,815 bp | 39.12% | −0.411 | −0.024 | |||||
| ND6NADH dehydrogenase subunit 6 | 501 bp | 35.13% | −0.545 | +0.305 | |||||
| CYTBCytochrome b | 1,140 bp | 41.40% | −0.335 | −0.075 | |||||
| 12S rRNA12S ribosomal RNA | 943 bp | 39.98% | −0.109 | +0.216 | |||||
| 16S rRNA16S ribosomal RNA | 1,562 bp | 36.56% | −0.089 | +0.138 | |||||
| D-loopControl region (D-loop) | 1,559 bp | 30.73% | +0.035 | −0.061 |
Codon usage
Counts per codon, darker is more frequent3,796 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.2%
UUU133
UUC101
Leu L17.4%
UUA186
UUG29
CUU122
CUC99
CUA200
CUG24
Ile I9.0%
AUU229
AUC112
Met M5.0%
AUA151
AUG38
Val V4.8%
GUU64
GUC39
GUA63
GUG17
Ser S7.3%
UCU58
UCC55
UCA108
UCG9
AGU21
AGC25
Pro P5.1%
CCU60
CCC60
CCA71
CCG4
Thr T8.5%
ACU94
ACC87
ACA130
ACG11
Ala A6.2%
GCU80
GCC87
GCA67
GCG3
Tyr Y3.4%
UAU78
UAC52
His H2.8%
CAU46
CAC60
Gln Q2.4%
CAA80
CAG10
Asn N3.8%
AAU72
AAC73
Lys K2.3%
AAA79
AAG9
Asp D1.9%
GAU46
GAC26
Glu E2.5%
GAA76
GAG19
Cys C0.7%
UGU16
UGC10
Trp W2.8%
UGA101
UGG5
Arg R1.7%
CGU11
CGC15
CGA34
CGG4
Gly G6.0%
GGU57
GGC45
GGA93
GGG31
Stop 0.3%
UAA7
UAG3
AGA0
AGG1
Genome map
38 annotated features in NC_000891.1Hover, 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 (37.1%, 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 | 72 | 72 bp | + | – |
| 12S rRNA | Ribosomal RNA | 73 | 1,015 | 943 bp | + | 40.0% |
| tRNA-Val | Transfer RNA | 1,016 | 1,081 | 66 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,082 | 2,643 | 1,562 bp | + | 36.6% |
| tRNA-Leu (UUR) | Transfer RNA | 2,644 | 2,718 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,807 | 3,763 | 957 bp | + | 37.7% |
| tRNA-Ile | Transfer RNA | 3,764 | 3,832 | 69 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,830 | 3,901 | 72 bp | − | – |
| tRNA-Met | Transfer RNA | 3,901 | 3,969 | 69 bp | + | – |
| ND2 | Protein-coding gene | 3,971 | 5,014 | 1,044 bp | + | 37.3% |
| tRNA-Trp | Transfer RNA | 5,013 | 5,079 | 67 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,083 | 5,150 | 68 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,151 | 5,223 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,256 | 5,320 | 65 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,321 | 5,387 | 67 bp | − | – |
| COX1 | Protein-coding gene | 5,389 | 6,930 | 1,542 bp | + | 38.7% |
| tRNA-Ser (UCN) | Transfer RNA | 6,932 | 7,002 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,006 | 7,073 | 68 bp | + | – |
| COX2 | Protein-coding gene | 7,074 | 7,766 | 693 bp | + | 35.8% |
| tRNA-Lys | Transfer RNA | 7,762 | 7,827 | 66 bp | + | – |
| ATP8 | Protein-coding gene | 7,829 | 8,038 | 210 bp | + | 32.4% |
| ATP6 | Protein-coding gene | 7,993 | 8,673 | 681 bp | + | 36.9% |
| COX3 | Protein-coding gene | 8,673 | 9,456 | 784 bp | + | 40.1% |
| tRNA-Gly | Transfer RNA | 9,457 | 9,526 | 70 bp | + | – |
| ND3 | Protein-coding gene | 9,527 | 9,874 | 348 bp | + | 35.4% |
| tRNA-Arg | Transfer RNA | 9,872 | 9,940 | 69 bp | + | – |
| ND4L | Protein-coding gene | 9,941 | 10,237 | 297 bp | + | 34.7% |
| ND4 | Protein-coding gene | 10,231 | 11,608 | 1,378 bp | + | 37.6% |
| tRNA-His | Transfer RNA | 11,609 | 11,677 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,678 | 11,735 | 58 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,732 | 11,802 | 71 bp | + | – |
| ND5 | Protein-coding gene | 11,803 | 13,617 | 1,815 bp | + | 39.1% |
| ND6 | Protein-coding gene | 13,614 | 14,114 | 501 bp | − | 35.1% |
| tRNA-Glu | Transfer RNA | 14,115 | 14,183 | 69 bp | − | – |
| CYTB | Protein-coding gene | 14,186 | 15,325 | 1,140 bp | + | 41.4% |
| tRNA-Thr | Transfer RNA | 15,325 | 15,393 | 69 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,394 | 15,460 | 67 bp | − | – |
| D-loop | Control region | 15,461 | 17,019 | 1,559 bp | – | 30.7% |