MitoAge

Polioptila caerulea

Blue-grey gnatcatcher

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Maximum lifespan
4.2 yr
AnAge record
mtDNA size
16,764 bp
RefSeq NC_051031.1
GC content
46.53%
Whole genome
Non-coding
1,291 bp
D-loop 1,201 bp

Where Blue-grey gnatcatcher sits among 2,335 species

Whole-genome GC content against maximum lifespan. Blue-grey gnatcatcher has the 2,073rd longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Blue-grey gnatcatcher
  • This species
  • Other birds
  • Other classes
Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,764 bp
GC skew (G − C) / (G + C)
−0.362
AT skew (A − T) / (A + T)
+0.138

Life history

Maximum lifespan
4.2 years
Adult weight
6.5 g
Birth weight
640 mg
Female sexual maturity
319 days
Male sexual maturity
319 days
Gestation or incubation
13 days
Litter or clutch size
4
Litters per year
2

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 01229)

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 genome16,764 bp
Protein-coding11,378 bp
12S rRNA972 bp
16S rRNA1,599 bp
All tRNA1,535 bp
D-loop1,201 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1978 bp26.8%26.0%13.8%33.4%47.24%−0.416+0.016
ND2NADH dehydrogenase subunit 21,040 bp32.1%23.3%11.0%33.7%44.62%−0.509+0.160
COX1Cytochrome c oxidase subunit I1,551 bp28.8%24.2%16.4%30.6%47.00%−0.300+0.085
COX2Cytochrome c oxidase subunit II684 bp29.7%20.2%15.9%34.2%50.15%−0.364+0.191
ATP8ATP synthase F0 subunit 8168 bp31.5%27.4%7.7%33.3%41.07%−0.623+0.071
ATP6ATP synthase F0 subunit 6684 bp31.0%23.0%11.0%35.1%46.05%−0.524+0.149
COX3Cytochrome c oxidase subunit III784 bp25.9%24.2%15.8%34.1%49.87%−0.366+0.033
ND3NADH dehydrogenase subunit 3351 bp28.8%23.6%12.5%35.0%47.58%−0.473+0.098
ND4LNADH dehydrogenase subunit 4L297 bp29.0%23.2%12.1%35.7%47.81%−0.493+0.110
ND4NADH dehydrogenase subunit 41,378 bp30.6%23.1%11.1%35.3%46.37%−0.521+0.139
ND5NADH dehydrogenase subunit 51,818 bp31.3%21.9%11.8%35.0%46.81%−0.495+0.177
ND6NADH dehydrogenase subunit 6519 bp38.0%11.0%10.2%40.8%51.06%−0.600+0.551
CYTBCytochrome b1,143 bp29.0%23.5%13.2%34.3%47.51%−0.444+0.103
12S rRNA12S ribosomal RNA972 bp30.5%20.4%22.3%26.9%49.18%−0.092+0.198
16S rRNA16S ribosomal RNA1,599 bp34.0%20.7%20.7%24.6%45.34%−0.087+0.243
D-loopControl region (D-loop)1,201 bp27.2%28.1%15.6%29.0%44.58%−0.301−0.017

Codon usage

Counts per codon, darker is more frequent

3,797 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.7%
UUU42
UUC176
Leu L17.3%
UUA48
UUG13
CUU71
CUC146
CUA335
CUG43
Ile I7.4%
AUU61
AUC219
Met M4.4%
AUA117
AUG50
Val V5.3%
GUU36
GUC56
GUA90
GUG18
Ser S7.6%
UCU30
UCC85
UCA99
UCG11
AGU4
AGC61
Pro P5.8%
CCU23
CCC81
CCA107
CCG10
Thr T8.4%
ACU39
ACC143
ACA133
ACG3
Ala A8.7%
GCU40
GCC170
GCA106
GCG13
Tyr Y3.0%
UAU22
UAC91
His H2.6%
CAU13
CAC85
Gln Q2.6%
CAA89
CAG8
Asn N3.4%
AAU20
AAC109
Lys K2.3%
AAA86
AAG3
Asp D1.7%
GAU9
GAC56
Glu E2.4%
GAA79
GAG11
Cys C0.8%
UGU7
UGC23
Trp W2.8%
UGA95
UGG13
Arg R1.9%
CGU9
CGC14
CGA40
CGG8
Gly G5.7%
GGU25
GGC54
GGA107
GGG32
Stop 0.3%
UAA6
UAG1
AGA1
AGG2

Genome map

38 annotated features in NC_051031.1

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-loop1
  • Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
  • Middle ring: GC% of each gene against the whole genome (46.5%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
FeatureTypeStartEndLengthStrandGC
tRNA-PheTransfer RNA16868 bp+–
12S rRNARibosomal RNA681,039972 bp+49.2%
tRNA-ValTransfer RNA1,0391,10668 bp+–
16S rRNARibosomal RNA1,1072,7051,599 bp+45.3%
tRNA-Leu (UUR)Transfer RNA2,7062,78075 bp+–
ND1Protein-coding gene2,7943,771978 bp+47.2%
tRNA-IleTransfer RNA3,7813,85171 bp+–
tRNA-GlnTransfer RNA3,8583,92871 bp−–
tRNA-MetTransfer RNA3,9283,99669 bp+–
ND2Protein-coding gene3,9975,0361,040 bp+44.6%
tRNA-TrpTransfer RNA5,0375,10670 bp+–
tRNA-AlaTransfer RNA5,1085,17669 bp−–
tRNA-AsnTransfer RNA5,1845,25673 bp−–
tRNA-CysTransfer RNA5,2575,32367 bp−–
tRNA-TyrTransfer RNA5,3245,39370 bp−–
COX1Protein-coding gene5,3956,9451,551 bp+47.0%
tRNA-Ser (UCN)Transfer RNA6,9377,00973 bp−–
tRNA-AspTransfer RNA7,0157,08369 bp+–
COX2Protein-coding gene7,0947,777684 bp+50.2%
tRNA-LysTransfer RNA7,7797,84668 bp+–
ATP8Protein-coding gene7,8488,015168 bp+41.1%
ATP6Protein-coding gene8,0068,689684 bp+46.1%
COX3Protein-coding gene8,6979,480784 bp+49.9%
tRNA-GlyTransfer RNA9,4819,54969 bp+–
ND3Protein-coding gene9,5509,900351 bp+47.6%
tRNA-ArgTransfer RNA9,9029,97069 bp+–
ND4LProtein-coding gene9,97210,268297 bp+47.8%
ND4Protein-coding gene10,26211,6391,378 bp+46.4%
tRNA-HisTransfer RNA11,64011,70970 bp+–
tRNA-Ser (AGY)Transfer RNA11,71011,77566 bp+–
tRNA-Leu (CUN)Transfer RNA11,77511,84571 bp+–
ND5Protein-coding gene11,84613,6631,818 bp+46.8%
CYTBProtein-coding gene13,67514,8171,143 bp+47.5%
tRNA-ThrTransfer RNA14,82114,88969 bp+–
tRNA-ProTransfer RNA14,89714,96569 bp−–
ND6Protein-coding gene14,97215,490519 bp−51.1%
tRNA-GluTransfer RNA15,49115,56373 bp−–
D-loopControl region15,56416,7641,201 bp–44.6%

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