MitoAge

Bubo scandiacus

Snowy owl

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Maximum lifespan
28 yr
AnAge record
mtDNA size
18,734 bp
RefSeq NC_038220.1
GC content
48.16%
Whole genome
Non-coding
3,203 bp
D-loop 3,089 bp

Where Snowy owl sits among 2,335 species

Whole-genome GC content against maximum lifespan. Snowy owl has the 527th longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Snowy owl
  • This species
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Plot other mtDNA features with this species highlighted

Base composition

Whole genome18,734 bp
GC skew (G − C) / (G + C)
−0.413
AT skew (A − T) / (A + T)
+0.139

Life history

Maximum lifespan
28 years
Adult weight
2 kg
Birth weight
45 g
Basal metabolic rate
4.224 W
Female sexual maturity
2 years
Male sexual maturity
2 years
Gestation or incubation
32 days
Litter or clutch size
6
Litters per year
1
Postnatal growth rate
0.148 per day

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 01682)

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 RefSeq
Whole genome18,734 bp
Protein-coding11,367 bp
12S rRNA976 bp
16S rRNA1,585 bp
All tRNA1,614 bp
D-loop3,089 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1960 bp27.1%22.6%13.6%36.7%50.31%−0.458+0.090
ND2NADH dehydrogenase subunit 21,039 bp31.3%20.6%10.1%38.0%48.12%−0.580+0.206
COX1Cytochrome c oxidase subunit I1,551 bp25.5%23.5%16.5%34.5%51.00%−0.353+0.039
COX2Cytochrome c oxidase subunit II684 bp29.2%21.3%14.2%35.2%49.42%−0.426+0.156
ATP8ATP synthase F0 subunit 8168 bp31.5%23.2%7.1%38.1%45.24%−0.684+0.152
ATP6ATP synthase F0 subunit 6684 bp29.2%21.8%11.0%38.0%48.98%−0.552+0.146
COX3Cytochrome c oxidase subunit III784 bp27.8%21.7%15.8%34.7%50.51%−0.374+0.124
ND3NADH dehydrogenase subunit 3351 bp27.1%24.8%12.3%35.9%48.15%−0.491+0.044
ND4LNADH dehydrogenase subunit 4L297 bp26.3%22.9%14.1%36.7%50.84%−0.444+0.068
ND4NADH dehydrogenase subunit 41,378 bp29.4%21.1%11.4%38.1%49.49%−0.540+0.164
ND5NADH dehydrogenase subunit 51,824 bp29.7%21.1%12.2%37.1%49.29%−0.506+0.170
ND6NADH dehydrogenase subunit 6522 bp37.9%10.9%10.7%40.4%51.15%−0.581+0.553
CYTBCytochrome b1,143 bp25.9%23.3%14.3%36.6%50.83%−0.439+0.053
12S rRNA12S ribosomal RNA976 bp31.0%16.4%20.7%31.9%52.56%−0.212+0.309
16S rRNA16S ribosomal RNA1,585 bp33.5%19.0%18.7%28.8%47.51%−0.214+0.276
D-loopControl region (D-loop)3,089 bp28.9%28.4%12.6%30.1%42.73%−0.411+0.010

Codon usage

Counts per codon, darker is more frequent

3,794 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.4%
UUU43
UUC160
Leu L18.3%
UUA35
UUG20
CUU58
CUC189
CUA319
CUG72
Ile I6.9%
AUU61
AUC202
Met M4.0%
AUA110
AUG43
Val V4.3%
GUU21
GUC48
GUA69
GUG25
Ser S7.2%
UCU28
UCC107
UCA75
UCG9
AGU3
AGC52
Pro P6.2%
CCU21
CCC107
CCA104
CCG5
Thr T9.9%
ACU40
ACC199
ACA132
ACG6
Ala A8.2%
GCU34
GCC174
GCA98
GCG6
Tyr Y2.8%
UAU19
UAC89
His H3.1%
CAU16
CAC103
Gln Q2.5%
CAA84
CAG10
Asn N3.3%
AAU19
AAC108
Lys K2.2%
AAA67
AAG15
Asp D1.7%
GAU7
GAC57
Glu E2.3%
GAA74
GAG15
Cys C0.7%
UGU2
UGC25
Trp W2.9%
UGA89
UGG20
Arg R1.8%
CGU2
CGC21
CGA38
CGG8
Gly G5.8%
GGU13
GGC87
GGA72
GGG49
Stop 0.3%
UAA7
UAG1
AGA0
AGG2

Genome map

40 annotated features in NC_038220.1

Hover, 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
  • tRNA23
  • D-loop2
  • Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
  • Middle ring: GC% of each gene against the whole genome (48.2%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 40 features as a table
FeatureTypeStartEndLengthStrandGC
tRNA-PheTransfer RNA16969 bp+–
12S rRNARibosomal RNA701,045976 bp+52.6%
tRNA-ValTransfer RNA1,0461,11469 bp+–
16S rRNARibosomal RNA1,1152,6991,585 bp+47.5%
tRNA-Leu (UUR)Transfer RNA2,7002,77374 bp+–
ND1Protein-coding gene2,7883,747960 bp+50.3%
tRNA-IleTransfer RNA3,7463,81772 bp+–
tRNA-GlnTransfer RNA3,8343,90471 bp−–
tRNA-MetTransfer RNA3,9043,97269 bp+–
ND2Protein-coding gene3,9735,0111,039 bp+48.1%
tRNA-TrpTransfer RNA5,0125,08776 bp+–
tRNA-AlaTransfer RNA5,0895,15769 bp−–
tRNA-AsnTransfer RNA5,1595,23375 bp−–
tRNA-CysTransfer RNA5,2365,30469 bp−–
tRNA-TyrTransfer RNA5,3055,37571 bp−–
COX1Protein-coding gene5,3776,9271,551 bp+51.0%
tRNA-Ser (UCN)Transfer RNA6,9196,99274 bp−–
tRNA-AspTransfer RNA6,9967,06469 bp+–
COX2Protein-coding gene7,0677,750684 bp+49.4%
tRNA-LysTransfer RNA7,7607,82970 bp+–
ATP8Protein-coding gene7,8317,998168 bp+45.2%
ATP6Protein-coding gene7,9898,672684 bp+49.0%
COX3Protein-coding gene8,6729,455784 bp+50.5%
tRNA-GlyTransfer RNA9,4569,52469 bp+–
ND3Protein-coding gene9,5259,876352 bp+48.2%
tRNA-ArgTransfer RNA9,8799,94769 bp+–
ND4LProtein-coding gene9,94910,245297 bp+50.8%
ND4Protein-coding gene10,23911,6161,378 bp+49.5%
tRNA-HisTransfer RNA11,61711,68670 bp+–
tRNA-Ser (AGY)Transfer RNA11,68911,75365 bp+–
tRNA-Leu (CUN)Transfer RNA11,75611,82671 bp+–
ND5Protein-coding gene11,82713,6501,824 bp+49.3%
CYTBProtein-coding gene13,65514,7971,143 bp+50.8%
tRNA-ThrTransfer RNA14,79814,86467 bp+–
tRNA-GluTransfer RNA14,90814,97164 bp−–
D-loopControl region14,97216,4651,494 bp–42.7%
tRNA-ProTransfer RNA16,46616,53570 bp−–
ND6Protein-coding gene16,54217,063522 bp−51.2%
tRNA-GluTransfer RNA17,06717,13973 bp−–
D-loopControl region17,14018,7341,595 bp–42.7%

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