Thymallus arcticus

Arctic grayling

Maximum lifespan

18 yr

AnAge record

mtDNA size

16,661 bp

RefSeq NC_056305.1

GC content

44.30%

Whole genome

Non-coding

1,070 bp

D-loop 1,002 bp

Where Arctic grayling sits among 2,335 species

Whole-genome GC content against maximum lifespan. Arctic grayling has the 1,034th longest lifespan of them.

This species
Other ray-finned fishes
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,661 bp

GC skew (G − C) / (G + C): −0.229
AT skew (A − T) / (A + T): +0.014

Life history

Maximum lifespan: 18 years
Adult weight: 2.1 kg

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 04479)

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 genome16,661 bp

Protein-coding11,410 bp

12S rRNA946 bp

16S rRNA1,680 bp

All tRNA1,555 bp

D-loop1,002 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Thymallus arcticus genes

ND1NADH dehydrogenase subunit 1	975 bp	24.9%	29.8%	16.1%	29.0%	45.18%	−0.286	−0.090
ND2NADH dehydrogenase subunit 2	1,049 bp	28.4%	28.6%	13.3%	29.7%	42.99%	−0.384	−0.003
COX1Cytochrome c oxidase subunit I	1,551 bp	24.0%	31.4%	18.4%	26.1%	44.55%	−0.172	−0.133
COX2Cytochrome c oxidase subunit II	691 bp	26.9%	28.9%	16.9%	27.2%	44.14%	−0.233	−0.036
ATP8ATP synthase F0 subunit 8	168 bp	28.0%	25.0%	14.3%	32.7%	47.02%	−0.392	+0.056
ATP6ATP synthase F0 subunit 6	683 bp	26.8%	30.5%	13.3%	29.4%	42.75%	−0.377	−0.064
COX3Cytochrome c oxidase subunit III	785 bp	24.7%	29.8%	16.7%	28.8%	45.48%	−0.266	−0.093
ND3NADH dehydrogenase subunit 3	349 bp	24.4%	31.8%	15.8%	28.1%	43.84%	−0.281	−0.133
ND4LNADH dehydrogenase subunit 4L	297 bp	23.2%	30.0%	17.8%	29.0%	46.80%	−0.237	−0.127
ND4NADH dehydrogenase subunit 4	1,381 bp	27.5%	30.6%	15.3%	26.6%	41.85%	−0.270	−0.054
ND5NADH dehydrogenase subunit 5	1,839 bp	28.6%	28.9%	14.3%	28.2%	42.52%	−0.327	−0.005
ND6NADH dehydrogenase subunit 6	522 bp	38.7%	14.2%	13.0%	34.1%	47.13%	−0.447	+0.464
CYTBCytochrome b	1,141 bp	25.9%	29.4%	15.7%	29.0%	44.70%	−0.298	−0.062
12S rRNA12S ribosomal RNA	946 bp	29.5%	20.4%	23.2%	27.0%	50.11%	−0.076	+0.182
16S rRNA16S ribosomal RNA	1,680 bp	32.2%	19.9%	22.6%	25.2%	47.86%	−0.055	+0.235
D-loopControl region (D-loop)	1,002 bp	33.3%	32.5%	14.2%	20.0%	34.13%	−0.170	+0.012

Codon usage

Counts per codon, darker is more frequent

Gene

3,806 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.0%

UUU130

UUC98

Leu L17.3%

UUA116

UUG31

CUU202

CUC90

CUA182

CUG39

Ile I6.7%

AUU161

AUC95

Met M4.0%

AUA88

AUG65

Val V6.3%

GUU73

GUC47

GUA90

GUG29

Ser S6.2%

UCU60

UCC55

UCA61

UCG7

AGU12

AGC42

Pro P5.6%

CCU62

CCC69

CCA74

CCG8

Thr T8.0%

ACU69

ACC107

ACA116

ACG12

Ala A9.3%

GCU86

GCC145

GCA109

GCG14

Tyr Y2.9%

UAU54

UAC56

His H2.7%

CAU22

CAC82

Gln Q2.6%

CAA82

CAG16

Asn N3.0%

AAU46

AAC70

Lys K2.0%

AAA68

AAG8

Asp D2.0%

GAU28

GAC49

Glu E2.8%

GAA79

GAG26

Cys C0.7%

UGU10

UGC17

Trp W3.2%

UGA100

UGG23

Arg R2.0%

CGU12

CGC10

CGA44

CGG10

Gly G6.4%

GGU59

GGC49

GGA84

GGG52

Stop 0.2%

UAA5

UAG1

AGA0

AGG0

Genome map

38 annotated features in NC_056305.1

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 (44.3%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Thymallus arcticus (NC_056305.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	68	68 bp	+	–
12S rRNA	Ribosomal RNA	69	1,014	946 bp	+	50.1%
tRNA-Val	Transfer RNA	1,015	1,086	72 bp	+	–
16S rRNA	Ribosomal RNA	1,087	2,766	1,680 bp	+	47.9%
tRNA-Leu (UUR)	Transfer RNA	2,767	2,841	75 bp	+	–
ND1	Protein-coding gene	2,842	3,816	975 bp	+	45.2%
tRNA-Ile	Transfer RNA	3,825	3,896	72 bp	+	–
tRNA-Gln	Transfer RNA	3,894	3,964	71 bp	−	–
tRNA-Met	Transfer RNA	3,964	4,032	69 bp	+	–
ND2	Protein-coding gene	4,033	5,081	1,049 bp	+	43.0%
tRNA-Trp	Transfer RNA	5,082	5,153	72 bp	+	–
tRNA-Ala	Transfer RNA	5,155	5,223	69 bp	−	–
tRNA-Asn	Transfer RNA	5,225	5,297	73 bp	−	–
tRNA-Cys	Transfer RNA	5,331	5,397	67 bp	−	–
tRNA-Tyr	Transfer RNA	5,398	5,468	71 bp	−	–
COX1	Protein-coding gene	5,470	7,020	1,551 bp	+	44.6%
tRNA-Ser (UCN)	Transfer RNA	7,021	7,091	71 bp	−	–
tRNA-Asp	Transfer RNA	7,096	7,169	74 bp	+	–
COX2	Protein-coding gene	7,184	7,874	691 bp	+	44.1%
tRNA-Lys	Transfer RNA	7,875	7,948	74 bp	+	–
ATP8	Protein-coding gene	7,950	8,117	168 bp	+	47.0%
ATP6	Protein-coding gene	8,108	8,790	683 bp	+	42.8%
COX3	Protein-coding gene	8,791	9,575	785 bp	+	45.5%
tRNA-Gly	Transfer RNA	9,576	9,645	70 bp	+	–
ND3	Protein-coding gene	9,646	9,994	349 bp	+	43.8%
tRNA-Arg	Transfer RNA	9,995	10,064	70 bp	+	–
ND4L	Protein-coding gene	10,065	10,361	297 bp	+	46.8%
ND4	Protein-coding gene	10,355	11,735	1,381 bp	+	41.9%
tRNA-His	Transfer RNA	11,736	11,804	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,805	11,873	69 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,875	11,947	73 bp	+	–
ND5	Protein-coding gene	11,948	13,786	1,839 bp	+	42.5%
ND6	Protein-coding gene	13,783	14,304	522 bp	−	47.1%
tRNA-Glu	Transfer RNA	14,305	14,373	69 bp	−	–
CYTB	Protein-coding gene	14,378	15,518	1,141 bp	+	44.7%
tRNA-Thr	Transfer RNA	15,519	15,590	72 bp	+	–
tRNA-Pro	Transfer RNA	15,590	15,659	70 bp	−	–
D-loop	Control region	15,660	16,661	1,002 bp	–	34.1%