MitoAge

Tachycineta bicolor

Tree swallow

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Maximum lifespan
12.1 yr
AnAge record
mtDNA size
17,945 bp
RefSeq NC_020596.1
GC content
46.43%
Whole genome
Non-coding
2,465 bp
D-loop 2,377 bp

Where Tree swallow sits among 2,335 species

Whole-genome GC content against maximum lifespan. Tree swallow has the 1,402nd longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Tree swallow
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Plot other mtDNA features with this species highlighted

Base composition

Whole genome17,945 bp
GC skew (G − C) / (G + C)
−0.395
AT skew (A − T) / (A + T)
+0.144

Life history

Maximum lifespan
12.1 years
Adult weight
19 g
Birth weight
1.6 g
Female sexual maturity
365 days
Male sexual maturity
365 days
Gestation or incubation
14 days
Litter or clutch size
5
Litters per year
1
Postnatal growth rate
0.46 per day

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 00938)

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 RefSeq
Whole genome17,945 bp
Protein-coding11,379 bp
12S rRNA973 bp
16S rRNA1,603 bp
All tRNA1,535 bp
D-loop2,377 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1978 bp28.2%24.4%13.3%34.0%47.34%−0.438+0.072
ND2NADH dehydrogenase subunit 21,041 bp30.6%23.5%9.9%35.9%45.82%−0.568+0.131
COX1Cytochrome c oxidase subunit I1,551 bp27.9%23.6%16.4%32.0%48.49%−0.322+0.084
COX2Cytochrome c oxidase subunit II684 bp30.7%23.7%14.5%31.1%45.61%−0.365+0.129
ATP8ATP synthase F0 subunit 8168 bp31.5%25.0%5.4%38.1%43.45%−0.753+0.116
ATP6ATP synthase F0 subunit 6684 bp31.9%23.1%9.4%35.7%45.03%−0.584+0.160
COX3Cytochrome c oxidase subunit III784 bp26.5%23.3%15.9%34.2%50.13%−0.364+0.064
ND3NADH dehydrogenase subunit 3351 bp29.3%23.1%11.1%36.5%47.58%−0.533+0.120
ND4LNADH dehydrogenase subunit 4L297 bp27.6%23.2%11.8%37.4%49.16%−0.521+0.086
ND4NADH dehydrogenase subunit 41,378 bp31.3%22.1%10.5%36.1%46.66%−0.549+0.173
ND5NADH dehydrogenase subunit 51,818 bp31.1%22.2%11.4%35.2%46.65%−0.509+0.167
ND6NADH dehydrogenase subunit 6519 bp40.3%10.2%8.5%41.0%49.52%−0.658+0.595
CYTBCytochrome b1,143 bp28.1%24.4%12.9%34.6%47.51%−0.459+0.070
12S rRNA12S ribosomal RNA973 bp30.7%20.2%22.5%26.5%49.02%−0.082+0.206
16S rRNA16S ribosomal RNA1,603 bp34.6%19.5%19.9%26.0%45.85%−0.132+0.279
D-loopControl region (D-loop)2,377 bp29.0%27.3%13.0%30.8%43.75%−0.406+0.031

Codon usage

Counts per codon, darker is more frequent

3,798 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.8%
UUU38
UUC183
Leu L17.5%
UUA56
UUG20
CUU66
CUC144
CUA335
CUG44
Ile I7.6%
AUU62
AUC225
Met M4.2%
AUA130
AUG29
Val V4.8%
GUU36
GUC48
GUA81
GUG18
Ser S7.6%
UCU26
UCC116
UCA82
UCG8
AGU8
AGC49
Pro P5.9%
CCU27
CCC90
CCA104
CCG4
Thr T9.0%
ACU43
ACC164
ACA126
ACG7
Ala A7.9%
GCU33
GCC153
GCA106
GCG8
Tyr Y2.9%
UAU24
UAC86
His H2.8%
CAU13
CAC92
Gln Q2.6%
CAA86
CAG11
Asn N3.5%
AAU24
AAC108
Lys K2.3%
AAA80
AAG6
Asp D1.8%
GAU8
GAC59
Glu E2.3%
GAA76
GAG10
Cys C0.8%
UGU5
UGC26
Trp W2.8%
UGA96
UGG11
Arg R1.9%
CGU4
CGC17
CGA47
CGG4
Gly G5.9%
GGU22
GGC65
GGA104
GGG34
Stop 0.3%
UAA7
UAG1
AGA2
AGG1

Genome map

40 annotated features in NC_020596.1

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
  • tRNA22
  • D-loop3
  • Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
  • Middle ring: GC% of each gene against the whole genome (46.4%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 40 features as a table
FeatureTypeStartEndLengthStrandGC
12S rRNARibosomal RNA1973973 bp+49.0%
tRNA-ValTransfer RNA9741,04370 bp+–
16S rRNARibosomal RNA1,0442,6461,603 bp+45.9%
tRNA-Leu (UUR)Transfer RNA2,6472,72175 bp+–
ND1Protein-coding gene2,7393,716978 bp+47.3%
tRNA-IleTransfer RNA3,7233,79371 bp+–
tRNA-GlnTransfer RNA3,8013,87171 bp−–
tRNA-MetTransfer RNA3,8713,93868 bp+–
ND2Protein-coding gene3,9394,9791,041 bp+45.8%
tRNA-TrpTransfer RNA4,9795,04971 bp+–
tRNA-AlaTransfer RNA5,0515,11969 bp−–
tRNA-AsnTransfer RNA5,1285,19871 bp−–
tRNA-CysTransfer RNA5,2005,26566 bp−–
tRNA-TyrTransfer RNA5,2655,33571 bp−–
COX1Protein-coding gene5,3376,8871,551 bp+48.5%
tRNA-Ser (UCN)Transfer RNA6,8796,95375 bp−–
tRNA-AspTransfer RNA6,9597,02466 bp+–
COX2Protein-coding gene7,0377,720684 bp+45.6%
tRNA-LysTransfer RNA7,7227,79069 bp+–
ATP8Protein-coding gene7,7927,959168 bp+43.5%
ATP6Protein-coding gene7,9508,633684 bp+45.0%
COX3Protein-coding gene8,6419,424784 bp+50.1%
tRNA-GlyTransfer RNA9,4259,49369 bp+–
ND3Protein-coding gene9,4949,844351 bp+47.6%
tRNA-ArgTransfer RNA9,8479,91670 bp+–
ND4LProtein-coding gene9,91810,214297 bp+49.2%
ND4Protein-coding gene10,20811,5851,378 bp+46.7%
tRNA-HisTransfer RNA11,58611,65570 bp+–
tRNA-Ser (AGY)Transfer RNA11,65611,72166 bp+–
tRNA-Leu (CUN)Transfer RNA11,72111,79171 bp+–
ND5Protein-coding gene11,79213,6091,818 bp+46.7%
CYTBProtein-coding gene13,61814,7601,143 bp+47.5%
tRNA-ThrTransfer RNA14,76414,83269 bp+–
D-loopControl region14,83315,8981,066 bp–43.8%
tRNA-ProTransfer RNA15,89915,96870 bp−–
ND6Protein-coding gene15,97516,493519 bp−49.5%
tRNA-GluTransfer RNA16,49516,56672 bp−–
D-loopControl region16,56717,8771,311 bp–43.8%
D-loopControl region17,68117,876196 bp–43.8%
tRNA-PheTransfer RNA17,87817,94568 bp+–

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