MitoAge

Hirundo neoxena

Welcome swallow

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Maximum lifespan
11.5 yr
AnAge record
mtDNA size
18,039 bp
RefSeq NC_050290.1
GC content
45.16%
Whole genome
Non-coding
2,540 bp
D-loop 2,455 bp

Where Welcome swallow sits among 2,335 species

Whole-genome GC content against maximum lifespan. Welcome swallow has the 1,471st longest lifespan of them.

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

Base composition

Whole genome18,039 bp
GC skew (G − C) / (G + C)
−0.363
AT skew (A − T) / (A + T)
+0.144

Life history

Maximum lifespan
11.5 years
Adult weight
15 g
Female sexual maturity
363 days

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 00928)

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
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 genome18,039 bp
Protein-coding11,384 bp
12S rRNA972 bp
16S rRNA1,607 bp
All tRNA1,545 bp
D-loop2,455 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1978 bp28.1%24.7%14.2%32.9%47.14%−0.397+0.064
ND2NADH dehydrogenase subunit 21,040 bp33.3%24.3%9.9%32.5%42.40%−0.533+0.155
COX1Cytochrome c oxidase subunit I1,557 bp28.4%25.2%16.5%29.9%46.37%−0.288+0.059
COX2Cytochrome c oxidase subunit II684 bp32.3%21.6%15.2%30.8%46.05%−0.340+0.198
ATP8ATP synthase F0 subunit 8168 bp34.5%22.6%5.4%37.5%42.86%−0.750+0.208
ATP6ATP synthase F0 subunit 6684 bp31.4%24.4%10.1%34.1%44.15%−0.543+0.126
COX3Cytochrome c oxidase subunit III784 bp28.6%24.4%15.3%31.8%47.07%−0.350+0.080
ND3NADH dehydrogenase subunit 3351 bp31.3%26.5%11.1%31.1%42.17%−0.473+0.084
ND4LNADH dehydrogenase subunit 4L297 bp26.6%25.3%12.8%35.4%48.15%−0.469+0.026
ND4NADH dehydrogenase subunit 41,378 bp32.1%23.4%11.1%33.4%44.49%−0.501+0.156
ND5NADH dehydrogenase subunit 51,818 bp32.3%22.1%11.4%34.2%45.60%−0.498+0.187
ND6NADH dehydrogenase subunit 6519 bp42.4%10.8%10.4%36.4%46.82%−0.556+0.594
CYTBCytochrome b1,143 bp29.0%24.1%13.5%33.4%46.89%−0.425+0.091
12S rRNA12S ribosomal RNA972 bp31.3%20.6%21.8%26.3%48.15%−0.094+0.206
16S rRNA16S ribosomal RNA1,607 bp34.4%21.3%20.1%24.2%44.31%−0.093+0.236
D-loopControl region (D-loop)2,455 bp29.5%26.6%14.1%29.9%43.95%−0.361+0.052

Codon usage

Counts per codon, darker is more frequent

3,799 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.8%
UUU54
UUC165
Leu L17.0%
UUA61
UUG20
CUU54
CUC105
CUA367
CUG38
Ile I7.7%
AUU78
AUC213
Met M4.8%
AUA142
AUG42
Val V5.0%
GUU32
GUC54
GUA84
GUG20
Ser S7.4%
UCU34
UCC87
UCA99
UCG8
AGU6
AGC49
Pro P5.9%
CCU31
CCC68
CCA117
CCG7
Thr T8.8%
ACU46
ACC146
ACA132
ACG11
Ala A8.0%
GCU46
GCC150
GCA100
GCG8
Tyr Y3.1%
UAU28
UAC89
His H2.7%
CAU24
CAC79
Gln Q2.6%
CAA88
CAG9
Asn N3.6%
AAU22
AAC113
Lys K2.2%
AAA81
AAG4
Asp D1.7%
GAU15
GAC51
Glu E2.3%
GAA72
GAG14
Cys C0.8%
UGU5
UGC24
Trp W2.8%
UGA93
UGG13
Arg R1.9%
CGU4
CGC14
CGA51
CGG4
Gly G5.7%
GGU23
GGC55
GGA107
GGG33
Stop 0.3%
UAA5
UAG2
AGA2
AGG1

Genome map

39 annotated features in NC_050290.1

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-loop2
  • 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 39 features as a table
FeatureTypeStartEndLengthStrandGC
12S rRNARibosomal RNA1972972 bp+48.2%
tRNA-ValTransfer RNA9731,04270 bp+–
16S rRNARibosomal RNA1,0432,6491,607 bp+44.3%
tRNA-Leu (UUR)Transfer RNA2,6502,72475 bp+–
ND1Protein-coding gene2,7373,714978 bp+47.1%
tRNA-IleTransfer RNA3,7223,79271 bp+–
tRNA-GlnTransfer RNA3,8003,87172 bp−–
tRNA-MetTransfer RNA3,8713,93969 bp+–
ND2Protein-coding gene3,9404,9791,040 bp+42.4%
tRNA-TrpTransfer RNA4,9805,05071 bp+–
tRNA-AlaTransfer RNA5,0525,12069 bp−–
tRNA-AsnTransfer RNA5,1305,20273 bp−–
tRNA-CysTransfer RNA5,2035,26866 bp−–
tRNA-TyrTransfer RNA5,2695,33870 bp−–
COX1Protein-coding gene5,3406,8961,557 bp+46.4%
tRNA-Ser (UCN)Transfer RNA6,8886,96275 bp−–
tRNA-AspTransfer RNA6,9677,03569 bp+–
COX2Protein-coding gene7,0467,729684 bp+46.1%
tRNA-LysTransfer RNA7,7317,80171 bp+–
ATP8Protein-coding gene7,8037,970168 bp+42.9%
ATP6Protein-coding gene7,9618,644684 bp+44.2%
COX3Protein-coding gene8,6519,434784 bp+47.1%
tRNA-GlyTransfer RNA9,4359,50369 bp+–
ND3Protein-coding gene9,5049,854351 bp+42.2%
tRNA-ArgTransfer RNA9,8579,92670 bp+–
ND4LProtein-coding gene9,92810,224297 bp+48.2%
ND4Protein-coding gene10,21811,5951,378 bp+44.5%
tRNA-HisTransfer RNA11,59611,66469 bp+–
tRNA-Ser (AGY)Transfer RNA11,66511,73167 bp+–
tRNA-Leu (CUN)Transfer RNA11,73111,80171 bp+–
ND5Protein-coding gene11,80213,6191,818 bp+45.6%
CYTBProtein-coding gene13,62714,7691,143 bp+46.9%
tRNA-ThrTransfer RNA14,77414,84269 bp+–
D-loopControl region14,84315,9881,146 bp–44.0%
tRNA-ProTransfer RNA15,98916,05870 bp−–
ND6Protein-coding gene16,07016,588519 bp−46.8%
tRNA-GluTransfer RNA16,59016,66172 bp−–
D-loopControl region16,66217,9701,309 bp–44.0%
tRNA-PheTransfer RNA17,97118,03969 bp+–

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