Chroicocephalus ridibundus
Black-headed gull
GC content
45.22%
Whole genome
Non-coding
1,343 bp
D-loop 1,268 bp
Where Black-headed gull sits among 2,335 species
Whole-genome GC content against maximum lifespan. Black-headed gull has the 373rd longest lifespan of them.
- This species
- Other birds
- Other classes
Base composition
Whole genome16,807 bp
- GC skew (G − C) / (G + C)
- −0.374
- AT skew (A − T) / (A + T)
- +0.125
Life history
- Maximum lifespan
- 32.9 years
- Adult weight
- 306 g
- Female sexual maturity
- 2 years
- Male sexual maturity
- 2 years
- Gestation or incubation
- 22 days
- Litter or clutch size
- 3
- Postnatal growth rate
- 0.248 per day
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 00457)
About this record
- Lifespan source
- AnAge build 15
- Based on
- an animal in the wild
- Data quality
- acceptable, medium sample
- Licence
- Free to use, subject to the Human Ageing Genomic Resources conditions of use
- Status
- Unchanged since build 1
- In the database since
- build 1 (2015-07-01)
Every change against the 2015 build is in the changelog download.
Composition by region
Reference (L) strand as deposited in RefSeqWhole genome16,807 bp
Protein-coding11,370 bp
12S rRNA965 bp
16S rRNA1,604 bp
All tRNA1,547 bp
D-loop1,268 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 978 bp | 46.32% | −0.391 | −0.021 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,039 bp | 43.79% | −0.512 | +0.147 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 46.62% | −0.308 | +0.031 | |||||
| COX2Cytochrome c oxidase subunit II | 684 bp | 46.64% | −0.354 | +0.101 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 42.26% | −0.718 | +0.196 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 47.66% | −0.577 | +0.106 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 46.43% | −0.286 | +0.048 | |||||
| ND3NADH dehydrogenase subunit 3 | 345 bp | 45.51% | −0.452 | 0.000 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 46.47% | −0.377 | +0.082 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,378 bp | 45.86% | −0.544 | +0.142 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,815 bp | 44.57% | −0.498 | +0.137 | |||||
| ND6NADH dehydrogenase subunit 6 | 522 bp | 46.74% | −0.549 | +0.590 | |||||
| CYTBCytochrome b | 1,143 bp | 45.84% | −0.462 | +0.082 | |||||
| 12S rRNA12S ribosomal RNA | 965 bp | 49.33% | −0.139 | +0.219 | |||||
| 16S rRNA16S ribosomal RNA | 1,604 bp | 45.08% | −0.156 | +0.199 | |||||
| D-loopControl region (D-loop) | 1,268 bp | 40.46% | −0.326 | +0.091 |
Codon usage
Counts per codon, darker is more frequent3,795 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.9%
UUU56
UUC167
Leu L17.5%
UUA75
UUG23
CUU63
CUC156
CUA305
CUG41
Ile I7.6%
AUU87
AUC203
Met M4.5%
AUA141
AUG29
Val V4.6%
GUU36
GUC49
GUA66
GUG23
Ser S7.5%
UCU34
UCC85
UCA98
UCG9
AGU6
AGC51
Pro P5.9%
CCU36
CCC80
CCA99
CCG8
Thr T9.2%
ACU59
ACC149
ACA135
ACG7
Ala A7.6%
GCU63
GCC118
GCA104
GCG5
Tyr Y2.9%
UAU31
UAC80
His H2.9%
CAU26
CAC85
Gln Q2.5%
CAA86
CAG10
Asn N3.4%
AAU18
AAC110
Lys K2.3%
AAA77
AAG9
Asp D1.6%
GAU16
GAC46
Glu E2.5%
GAA83
GAG11
Cys C0.7%
UGU11
UGC17
Trp W2.8%
UGA96
UGG11
Arg R1.9%
CGU11
CGC17
CGA37
CGG7
Gly G5.9%
GGU31
GGC72
GGA78
GGG43
Stop 0.3%
UAA6
UAG1
AGA1
AGG2
Genome map
38 annotated features in NC_025649.1Hover, 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 (45.2%, 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 | 71 | 71 bp | + | – |
| 12S rRNA | Ribosomal RNA | 72 | 1,036 | 965 bp | + | 49.3% |
| tRNA-Val | Transfer RNA | 1,036 | 1,107 | 72 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,108 | 2,711 | 1,604 bp | + | 45.1% |
| tRNA-Leu (UUR) | Transfer RNA | 2,702 | 2,775 | 74 bp | + | – |
| ND1 | Protein-coding gene | 2,779 | 3,756 | 978 bp | + | 46.3% |
| tRNA-Ile | Transfer RNA | 3,755 | 3,826 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,836 | 3,906 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,906 | 3,974 | 69 bp | + | – |
| ND2 | Protein-coding gene | 3,975 | 5,013 | 1,039 bp | + | 43.8% |
| tRNA-Trp | Transfer RNA | 5,014 | 5,085 | 72 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,087 | 5,155 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,158 | 5,230 | 73 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,233 | 5,299 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,299 | 5,369 | 71 bp | − | – |
| COX1 | Protein-coding gene | 5,371 | 6,921 | 1,551 bp | + | 46.6% |
| tRNA-Ser (UCN) | Transfer RNA | 6,913 | 6,986 | 74 bp | − | – |
| tRNA-Asp | Transfer RNA | 6,989 | 7,057 | 69 bp | + | – |
| COX2 | Protein-coding gene | 7,059 | 7,742 | 684 bp | + | 46.6% |
| tRNA-Lys | Transfer RNA | 7,744 | 7,813 | 70 bp | + | – |
| ATP8 | Protein-coding gene | 7,815 | 7,982 | 168 bp | + | 42.3% |
| ATP6 | Protein-coding gene | 7,973 | 8,656 | 684 bp | + | 47.7% |
| COX3 | Protein-coding gene | 8,656 | 9,439 | 784 bp | + | 46.4% |
| tRNA-Gly | Transfer RNA | 9,440 | 9,508 | 69 bp | + | – |
| ND3 | Protein-coding gene | 9,515 | 9,859 | 345 bp | + | 45.5% |
| tRNA-Arg | Transfer RNA | 9,864 | 9,932 | 69 bp | + | – |
| ND4L | Protein-coding gene | 9,934 | 10,230 | 297 bp | + | 46.5% |
| ND4 | Protein-coding gene | 10,224 | 11,601 | 1,378 bp | + | 45.9% |
| tRNA-His | Transfer RNA | 11,602 | 11,670 | 69 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,671 | 11,736 | 66 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,736 | 11,806 | 71 bp | + | – |
| ND5 | Protein-coding gene | 11,807 | 13,621 | 1,815 bp | + | 44.6% |
| CYTB | Protein-coding gene | 13,641 | 14,783 | 1,143 bp | + | 45.8% |
| tRNA-Thr | Transfer RNA | 14,788 | 14,857 | 70 bp | + | – |
| tRNA-Pro | Transfer RNA | 14,865 | 14,934 | 70 bp | − | – |
| ND6 | Protein-coding gene | 14,943 | 15,464 | 522 bp | − | 46.7% |
| tRNA-Glu | Transfer RNA | 15,468 | 15,539 | 72 bp | − | – |
| D-loop | Control region | 15,540 | 16,807 | 1,268 bp | – | 40.5% |