Euphagus cyanocephalus
Brewer's blackbird
GC content
45.94%
Whole genome
Non-coding
1,284 bp
D-loop 1,195 bp
Where Brewer's blackbird sits among 2,335 species
Whole-genome GC content against maximum lifespan. Brewer's blackbird has the 1,388th longest lifespan of them.
- This species
- Other birds
- Other classes
Base composition
Whole genome16,765 bp
- GC skew (G − C) / (G + C)
- −0.383
- AT skew (A − T) / (A + T)
- +0.130
Life history
- Maximum lifespan
- 12.5 years
- Adult weight
- 64.6 g
- Birth weight
- 3.7 g
- Female sexual maturity
- 365 days
- Male sexual maturity
- 365 days
- Gestation or incubation
- 13 days
- Litter or clutch size
- 5
- Litters per year
- 1.5
- Postnatal growth rate
- 0.469 per day
Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 00945)
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
- 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 genome16,765 bp
Protein-coding11,378 bp
12S rRNA977 bp
16S rRNA1,598 bp
All tRNA1,537 bp
D-loop1,195 bp
Genes and regions
Select a column to sort; select a gene to compare it across species| Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ND1NADH dehydrogenase subunit 1 | 978 bp | 47.04% | −0.417 | +0.019 | |||||
| ND2NADH dehydrogenase subunit 2 | 1,040 bp | 44.62% | −0.547 | +0.094 | |||||
| COX1Cytochrome c oxidase subunit I | 1,551 bp | 48.29% | −0.300 | +0.085 | |||||
| COX2Cytochrome c oxidase subunit II | 684 bp | 47.22% | −0.375 | +0.141 | |||||
| ATP8ATP synthase F0 subunit 8 | 168 bp | 45.83% | −0.688 | +0.121 | |||||
| ATP6ATP synthase F0 subunit 6 | 684 bp | 45.61% | −0.564 | +0.118 | |||||
| COX3Cytochrome c oxidase subunit III | 784 bp | 48.85% | −0.368 | +0.067 | |||||
| ND3NADH dehydrogenase subunit 3 | 351 bp | 45.58% | −0.450 | +0.016 | |||||
| ND4LNADH dehydrogenase subunit 4L | 297 bp | 49.16% | −0.479 | +0.046 | |||||
| ND4NADH dehydrogenase subunit 4 | 1,378 bp | 46.44% | −0.541 | +0.154 | |||||
| ND5NADH dehydrogenase subunit 5 | 1,818 bp | 45.88% | −0.506 | +0.167 | |||||
| ND6NADH dehydrogenase subunit 6 | 519 bp | 49.90% | −0.622 | +0.538 | |||||
| CYTBCytochrome b | 1,143 bp | 47.59% | −0.449 | +0.062 | |||||
| 12S rRNA12S ribosomal RNA | 977 bp | 48.82% | −0.153 | +0.216 | |||||
| 16S rRNA16S ribosomal RNA | 1,598 bp | 43.87% | −0.107 | +0.226 | |||||
| D-loopControl region (D-loop) | 1,195 bp | 43.10% | −0.383 | +0.038 |
Codon usage
Counts per codon, darker is more frequent3,797 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).
Phe F5.8%
UUU42
UUC178
Leu L17.8%
UUA57
UUG20
CUU56
CUC168
CUA329
CUG45
Ile I7.8%
AUU67
AUC228
Met M4.1%
AUA117
AUG38
Val V5.2%
GUU30
GUC64
GUA80
GUG22
Ser S7.6%
UCU30
UCC97
UCA95
UCG6
AGU10
AGC50
Pro P5.8%
CCU34
CCC71
CCA109
CCG6
Thr T8.3%
ACU48
ACC135
ACA126
ACG6
Ala A8.2%
GCU48
GCC158
GCA93
GCG11
Tyr Y2.9%
UAU15
UAC95
His H2.6%
CAU23
CAC77
Gln Q2.5%
CAA84
CAG10
Asn N3.7%
AAU24
AAC115
Lys K2.3%
AAA84
AAG2
Asp D1.7%
GAU8
GAC56
Glu E2.4%
GAA76
GAG15
Cys C0.8%
UGU7
UGC22
Trp W2.8%
UGA104
UGG3
Arg R1.9%
CGU5
CGC17
CGA42
CGG9
Gly G5.8%
GGU27
GGC64
GGA99
GGG30
Stop 0.3%
UAA6
UAG2
AGA1
AGG1
Genome map
38 annotated features in NC_018827.1Hover, 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 (45.9%, 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 | 1,045 | 977 bp | + | 48.8% |
| tRNA-Val | Transfer RNA | 1,046 | 1,115 | 70 bp | + | – |
| 16S rRNA | Ribosomal RNA | 1,116 | 2,713 | 1,598 bp | + | 43.9% |
| tRNA-Leu (UUR) | Transfer RNA | 2,714 | 2,788 | 75 bp | + | – |
| ND1 | Protein-coding gene | 2,803 | 3,780 | 978 bp | + | 47.0% |
| tRNA-Ile | Transfer RNA | 3,789 | 3,860 | 72 bp | + | – |
| tRNA-Gln | Transfer RNA | 3,866 | 3,936 | 71 bp | − | – |
| tRNA-Met | Transfer RNA | 3,936 | 4,004 | 69 bp | + | – |
| ND2 | Protein-coding gene | 4,005 | 5,044 | 1,040 bp | + | 44.6% |
| tRNA-Trp | Transfer RNA | 5,045 | 5,114 | 70 bp | + | – |
| tRNA-Ala | Transfer RNA | 5,116 | 5,184 | 69 bp | − | – |
| tRNA-Asn | Transfer RNA | 5,194 | 5,264 | 71 bp | − | – |
| tRNA-Cys | Transfer RNA | 5,266 | 5,332 | 67 bp | − | – |
| tRNA-Tyr | Transfer RNA | 5,332 | 5,402 | 71 bp | − | – |
| COX1 | Protein-coding gene | 5,404 | 6,954 | 1,551 bp | + | 48.3% |
| tRNA-Ser (UCN) | Transfer RNA | 6,946 | 7,018 | 73 bp | − | – |
| tRNA-Asp | Transfer RNA | 7,024 | 7,092 | 69 bp | + | – |
| COX2 | Protein-coding gene | 7,101 | 7,784 | 684 bp | + | 47.2% |
| tRNA-Lys | Transfer RNA | 7,786 | 7,854 | 69 bp | + | – |
| ATP8 | Protein-coding gene | 7,856 | 8,023 | 168 bp | + | 45.8% |
| ATP6 | Protein-coding gene | 8,014 | 8,697 | 684 bp | + | 45.6% |
| COX3 | Protein-coding gene | 8,704 | 9,487 | 784 bp | + | 48.9% |
| tRNA-Gly | Transfer RNA | 9,488 | 9,556 | 69 bp | + | – |
| ND3 | Protein-coding gene | 9,557 | 9,907 | 351 bp | + | 45.6% |
| tRNA-Arg | Transfer RNA | 9,909 | 9,978 | 70 bp | + | – |
| ND4L | Protein-coding gene | 9,980 | 10,276 | 297 bp | + | 49.2% |
| ND4 | Protein-coding gene | 10,270 | 11,647 | 1,378 bp | + | 46.4% |
| tRNA-His | Transfer RNA | 11,648 | 11,717 | 70 bp | + | – |
| tRNA-Ser (AGY) | Transfer RNA | 11,718 | 11,783 | 66 bp | + | – |
| tRNA-Leu (CUN) | Transfer RNA | 11,783 | 11,853 | 71 bp | + | – |
| ND5 | Protein-coding gene | 11,854 | 13,671 | 1,818 bp | + | 45.9% |
| CYTB | Protein-coding gene | 13,680 | 14,822 | 1,143 bp | + | 47.6% |
| tRNA-Thr | Transfer RNA | 14,826 | 14,894 | 69 bp | + | – |
| tRNA-Pro | Transfer RNA | 14,902 | 14,971 | 70 bp | − | – |
| ND6 | Protein-coding gene | 14,980 | 15,498 | 519 bp | − | 49.9% |
| tRNA-Glu | Transfer RNA | 15,500 | 15,570 | 71 bp | − | – |
| D-loop | Control region | 15,571 | 16,765 | 1,195 bp | – | 43.1% |