Scaphiopus holbrookii
Eastern spadefoot
GC content
42.60%
Whole genome
Non-coding
1,421 bp
D-loop 1,358 bp
Where Eastern spadefoot sits among 2,335 species
Whole-genome GC content against maximum lifespan. Eastern spadefoot has the 1,396th longest lifespan of them.
- This species
- Other amphibians
- Other classes
Base composition
Whole genome16,881 bp
- GC skew (G − C) / (G + C)
- −0.285
- AT skew (A − T) / (A + T)
- +0.074
Life history
- Maximum lifespan
- 12.3 years
- Female sexual maturity
- 2 years
- Male sexual maturity
- 2 years
- Gestation or incubation
- 8 days
- Litter or clutch size
- 3,872
Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 00128)
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
- New in build 2
- In the database since
- 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 genome16,881 bp
Protein-coding11,363 bp
12S rRNA937 bp
16S rRNA1,617 bp
All tRNA1,544 bp
D-loop1,358 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 977 bp | 43.19% | −0.322 | −0.005 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,042 bp | 42.13% | −0.435 | +0.055 | |||||
| COX1Cytochrome c oxidase subunit I | 1,554 bp | 45.30% | −0.207 | −0.033 | |||||
| COX2Cytochrome c oxidase subunit II | 688 bp | 43.75% | −0.229 | +0.111 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 38.10% | −0.563 | +0.154 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 42.54% | −0.395 | −0.064 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 45.15% | −0.271 | +0.056 | |||||
| ND3NADH dehydrogenase subunit 3 | 343 bp | 41.98% | −0.236 | −0.116 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 48.82% | −0.283 | −0.079 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,378 bp | 43.61% | −0.398 | +0.019 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,815 bp | 41.65% | −0.376 | +0.054 | |||||
| ND6NADH dehydrogenase subunit 6 | 510 bp | 42.94% | −0.461 | +0.540 | |||||
| CYTBCytochrome b | 1,141 bp | 44.79% | −0.370 | −0.057 | |||||
| 12S rRNA12S ribosomal RNA | 937 bp | 44.93% | −0.107 | +0.178 | |||||
| 16S rRNA16S ribosomal RNA | 1,617 bp | 39.95% | −0.111 | +0.197 | |||||
| D-loopControl region (D-loop) | 1,358 bp | 35.94% | −0.287 | +0.133 |
Codon usage
Counts per codon, darker is more frequent3,791 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.9%
UUU106
UUC116
Leu L16.2%
UUA113
UUG44
CUU103
CUC97
CUA206
CUG52
Ile I8.7%
AUU174
AUC156
Met M4.6%
AUA125
AUG49
Val V5.5%
GUU47
GUC52
GUA83
GUG26
Ser S7.3%
UCU59
UCC68
UCA80
UCG15
AGU16
AGC38
Pro P5.4%
CCU37
CCC49
CCA102
CCG15
Thr T8.2%
ACU55
ACC124
ACA120
ACG13
Ala A8.1%
GCU57
GCC130
GCA109
GCG12
Tyr Y3.0%
UAU46
UAC68
His H2.7%
CAU21
CAC80
Gln Q2.6%
CAA85
CAG14
Asn N3.7%
AAU47
AAC94
Lys K2.1%
AAA70
AAG10
Asp D1.8%
GAU23
GAC47
Glu E2.5%
GAA68
GAG25
Cys C0.7%
UGU8
UGC20
Trp W3.0%
UGA97
UGG18
Arg R1.8%
CGU8
CGC16
CGA40
CGG6
Gly G6.0%
GGU37
GGC82
GGA69
GGG38
Stop 0.2%
UAA4
UAG1
AGA0
AGG1
Genome map
38 annotated features in NC_037377.1Hover, 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 (42.6%, 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 | 1,006 | 937 bp | + | 44.9% |
| tRNA-Val | Transfer RNA | 1,007 | 1,075 | 69 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,076 | 2,692 | 1,617 bp | + | 40.0% |
| tRNA-Leu (UUR) | Transfer RNA | 2,693 | 2,767 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,768 | 3,744 | 977 bp | + | 43.2% |
| tRNA-Ile | Transfer RNA | 3,745 | 3,815 | 71 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,815 | 3,885 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,885 | 3,953 | 69 bp | + | – |
| ND2 | Protein-coding gene | 3,954 | 4,995 | 1,042 bp | + | 42.1% |
| tRNA-Trp | Transfer RNA | 4,996 | 5,064 | 69 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,066 | 5,134 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,135 | 5,207 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,233 | 5,297 | 65 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,298 | 5,367 | 70 bp | − | – |
| COX1 | Protein-coding gene | 5,369 | 6,922 | 1,554 bp | + | 45.3% |
| tRNA-Ser (UCN) | Transfer RNA | 6,923 | 6,993 | 71 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,002 | 7,069 | 68 bp | + | – |
| COX2 | Protein-coding gene | 7,072 | 7,759 | 688 bp | + | 43.8% |
| tRNA-Lys | Transfer RNA | 7,760 | 7,834 | 75 bp | + | – |
| ATP8 | Protein-coding gene | 7,835 | 8,002 | 168 bp | + | 38.1% |
| ATP6 | Protein-coding gene | 7,993 | 8,676 | 684 bp | + | 42.5% |
| COX3 | Protein-coding gene | 8,676 | 9,459 | 784 bp | + | 45.2% |
| tRNA-Gly | Transfer RNA | 9,460 | 9,530 | 71 bp | + | – |
| ND3 | Protein-coding gene | 9,530 | 9,872 | 343 bp | + | 42.0% |
| tRNA-Arg | Transfer RNA | 9,873 | 9,941 | 69 bp | + | – |
| ND4L | Protein-coding gene | 9,942 | 10,238 | 297 bp | + | 48.8% |
| ND4 | Protein-coding gene | 10,232 | 11,609 | 1,378 bp | + | 43.6% |
| tRNA-His | Transfer RNA | 11,610 | 11,678 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,679 | 11,747 | 69 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,746 | 11,818 | 73 bp | + | – |
| ND5 | Protein-coding gene | 11,819 | 13,633 | 1,815 bp | + | 41.7% |
| ND6 | Protein-coding gene | 13,657 | 14,166 | 510 bp | − | 42.9% |
| tRNA-Glu | Transfer RNA | 14,167 | 14,236 | 70 bp | − | – |
| CYTB | Protein-coding gene | 14,238 | 15,378 | 1,141 bp | + | 44.8% |
| tRNA-Thr | Transfer RNA | 15,379 | 15,448 | 70 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,448 | 15,521 | 74 bp | − | – |
| D-loop | Control region | 15,522 | 16,879 | 1,358 bp | – | 35.9% |