Branta bernicla
Brent goose
Retired record. RefSeq NC_027066.1 is not in NCBI RefSeq release 237 (mitochondrion.1.genomic.gbff.gz, file date 2026-09-03) (suppressed) and the release has no other complete mitogenome of NCBI species 184712 (Branta bernicla); no longer qualifies under the RefSeq-only rule Its build 1 values are kept and it is left out of the correlations.
GC content
47.44%
Whole genome
Non-coding
1,238 bp
D-loop 1,188 bp
Where Brent goose sits among 2,335 species
Whole-genome GC content against maximum lifespan. Brent goose has the 499th longest lifespan of them.
- This species
- Other birds
- Other classes
Base composition
Whole genome17,524 bp
- GC skew (G − C) / (G + C)
- −0.353
- AT skew (A − T) / (A + T)
- +0.136
Life history
- Maximum lifespan
- 28.8 years
- Adult weight
- 1.2 kg
- Birth weight
- 43.6 g
- Female sexual maturity
- 2 years
- Male sexual maturity
- 2 years
- Gestation or incubation
- 24 days
- Litter or clutch size
- 4
- Litters per year
- 1
- Postnatal growth rate
- 0.08 per day
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 00321)
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in the wild
- Data quality
- acceptable, large sample
- Licence
- Free to use, subject to the Human Ageing Genomic Resources conditions of use
- Status
- Retired
- 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 genome17,524 bp
Protein-coding12,164 bp
12S rRNA988 bp
16S rRNA1,605 bp
All tRNA1,540 bp
D-loop1,188 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 978 bp | 46.83% | −0.328 | +0.012 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,039 bp | 47.45% | −0.497 | +0.147 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 48.61% | −0.305 | +0.049 | |||||
| COX2Cytochrome c oxidase subunit II | 687 bp | 48.62% | −0.299 | +0.105 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 45.24% | −0.605 | +0.239 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 47.95% | −0.549 | +0.096 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 49.11% | −0.351 | +0.083 | |||||
| ND3NADH dehydrogenase subunit 3 | 351 bp | 50.71% | −0.371 | −0.006 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 47.14% | −0.386 | +0.006 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,378 bp | 48.26% | −0.486 | +0.136 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,824 bp | 47.48% | −0.416 | +0.169 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 49.62% | −0.506 | +0.536 | |||||
| CYTBCytochrome b | 1,920 bp | 48.65% | −0.435 | +0.097 | |||||
| 12S rRNA12S ribosomal RNA | 988 bp | 48.28% | −0.145 | +0.233 | |||||
| 16S rRNA16S ribosomal RNA | 1,605 bp | 45.86% | −0.122 | +0.259 | |||||
| D-loopControl region (D-loop) | 1,188 bp | 47.14% | −0.368 | +0.067 |
Codon usage
Counts per codon, darker is more frequent4,060 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F6.2%
UUU66
UUC186
Leu L17.1%
UUA43
UUG17
CUU49
CUC149
CUA348
CUG87
Ile I7.3%
AUU72
AUC225
Met M4.7%
AUA134
AUG55
Val V5.2%
GUU32
GUC62
GUA86
GUG31
Ser S7.2%
UCU28
UCC89
UCA106
UCG15
AGU5
AGC50
Pro P6.1%
CCU29
CCC86
CCA116
CCG16
Thr T7.9%
ACU46
ACC147
ACA121
ACG5
Ala A8.6%
GCU46
GCC194
GCA98
GCG13
Tyr Y2.9%
UAU16
UAC101
His H2.9%
CAU13
CAC106
Gln Q2.4%
CAA86
CAG11
Asn N3.3%
AAU21
AAC115
Lys K2.3%
AAA84
AAG11
Asp D1.7%
GAU12
GAC56
Glu E2.4%
GAA71
GAG28
Cys C0.8%
UGU3
UGC29
Trp W2.8%
UGA105
UGG10
Arg R1.9%
CGU6
CGC13
CGA48
CGG11
Gly G6.0%
GGU13
GGC80
GGA104
GGG45
Stop 0.2%
UAA7
UAG1
AGA0
AGG2
Genome map
38 annotated features in NC_027066.1Hover, 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 (47.4%, 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 | 68 | 68 bp | + | – |
| 12S rRNA | Ribosomal RNA | 69 | 1,056 | 988 bp | + | 48.3% |
| tRNA-Val | Transfer RNA | 1,057 | 1,127 | 71 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,128 | 2,732 | 1,605 bp | + | 45.9% |
| tRNA-Leu (UUR) | Transfer RNA | 2,733 | 2,806 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,813 | 3,790 | 978 bp | + | 46.8% |
| tRNA-Ile | Transfer RNA | 3,789 | 3,861 | 73 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,869 | 3,939 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,939 | 4,007 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,008 | 5,046 | 1,039 bp | + | 47.5% |
| tRNA-Trp | Transfer RNA | 5,047 | 5,121 | 75 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,128 | 5,196 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,198 | 5,270 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,274 | 5,339 | 66 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,339 | 5,409 | 71 bp | − | – |
| COX1 | Protein-coding gene | 5,411 | 6,961 | 1,551 bp | + | 48.6% |
| tRNA-Ser (UCN) | Transfer RNA | 6,953 | 7,025 | 73 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,028 | 7,096 | 69 bp | + | – |
| COX2 | Protein-coding gene | 7,098 | 7,784 | 687 bp | + | 48.6% |
| tRNA-Lys | Transfer RNA | 7,786 | 7,854 | 69 bp | + | – |
| ATP8 | Protein-coding gene | 7,856 | 8,023 | 168 bp | + | 45.2% |
| ATP6 | Protein-coding gene | 8,014 | 8,697 | 684 bp | + | 48.0% |
| COX3 | Protein-coding gene | 8,697 | 9,480 | 784 bp | + | 49.1% |
| tRNA-Gly | Transfer RNA | 9,481 | 9,549 | 69 bp | + | – |
| ND3 | Protein-coding gene | 9,550 | 9,900 | 351 bp | + | 50.7% |
| tRNA-Arg | Transfer RNA | 9,902 | 9,972 | 71 bp | + | – |
| ND4L | Protein-coding gene | 9,973 | 10,269 | 297 bp | + | 47.1% |
| ND4 | Protein-coding gene | 10,263 | 11,640 | 1,378 bp | + | 48.3% |
| tRNA-His | Transfer RNA | 11,641 | 11,709 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,710 | 11,776 | 67 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,776 | 11,846 | 71 bp | + | – |
| ND5 | Protein-coding gene | 11,847 | 13,670 | 1,824 bp | + | 47.5% |
| CYTB | Protein-coding gene | 13,670 | 15,589 | 1,920 bp | + | 48.7% |
| tRNA-Thr | Transfer RNA | 15,592 | 15,659 | 68 bp | + | – |
| tRNA-Pro | Transfer RNA | 15,668 | 15,736 | 69 bp | − | – |
| ND6 | Protein-coding gene | 15,747 | 16,268 | 522 bp | − | 49.6% |
| tRNA-Glu | Transfer RNA | 16,269 | 16,336 | 68 bp | − | – |
| D-loop | Control region | 16,337 | 17,524 | 1,188 bp | – | 47.1% |