Calidris tenuirostris

Great knot

Maximum lifespan

20.9 yr

AnAge record

mtDNA size

16,732 bp

RefSeq NC_046764.1

GC content

44.10%

Whole genome

Non-coding

1,248 bp

D-loop 1,173 bp

Where Great knot sits among 2,335 species

Whole-genome GC content against maximum lifespan. Great knot has the 860th longest lifespan of them.

This species
Other birds
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,732 bp

GC skew (G − C) / (G + C): −0.376
AT skew (A − T) / (A + T): +0.115

Life history

Maximum lifespan: 20.9 years
Adult weight: 179.2 g

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 00531)

About this record

Lifespan source: AnAge build 15
Based on: an animal in the wild
Data quality: acceptable, large 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 genome16,732 bp

Protein-coding11,376 bp

12S rRNA969 bp

16S rRNA1,596 bp

All tRNA1,558 bp

D-loop1,173 bp

Genes and regions

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

Base composition of Calidris tenuirostris genes

ND1NADH dehydrogenase subunit 1	978 bp	27.5%	27.3%	13.3%	31.9%	45.19%	−0.412	+0.004
ND2NADH dehydrogenase subunit 2	1,039 bp	32.1%	25.2%	9.6%	33.0%	42.64%	−0.549	+0.121
COX1Cytochrome c oxidase subunit I	1,551 bp	27.0%	27.5%	16.4%	29.0%	45.46%	−0.277	−0.009
COX2Cytochrome c oxidase subunit II	684 bp	29.5%	24.9%	15.8%	29.8%	45.61%	−0.308	+0.086
ATP8ATP synthase F0 subunit 8	168 bp	35.1%	22.0%	4.8%	38.1%	42.86%	−0.778	+0.229
ATP6ATP synthase F0 subunit 6	684 bp	27.5%	25.1%	9.9%	37.4%	47.37%	−0.580	+0.044
COX3Cytochrome c oxidase subunit III	784 bp	29.0%	25.9%	15.1%	30.1%	45.15%	−0.333	+0.056
ND3NADH dehydrogenase subunit 3	351 bp	29.3%	25.4%	12.5%	32.8%	45.30%	−0.447	+0.073
ND4LNADH dehydrogenase subunit 4L	297 bp	27.9%	27.6%	14.1%	30.3%	44.44%	−0.364	+0.006
ND4NADH dehydrogenase subunit 4	1,378 bp	31.4%	25.3%	10.3%	33.0%	43.32%	−0.524	+0.109
ND5NADH dehydrogenase subunit 5	1,815 bp	32.9%	23.3%	11.2%	32.6%	43.75%	−0.489	+0.171
ND6NADH dehydrogenase subunit 6	522 bp	44.1%	11.5%	8.4%	36.0%	44.44%	−0.621	+0.586
CYTBCytochrome b	1,143 bp	28.7%	25.9%	12.4%	33.0%	45.41%	−0.453	+0.051
12S rRNA12S ribosomal RNA	969 bp	32.1%	21.7%	19.8%	26.4%	46.23%	−0.143	+0.194
16S rRNA16S ribosomal RNA	1,596 bp	34.7%	22.6%	18.4%	24.3%	42.67%	−0.140	+0.211
D-loopControl region (D-loop)	1,173 bp	30.1%	28.0%	13.1%	28.7%	41.86%	−0.373	+0.035

Codon usage

Counts per codon, darker is more frequent

Gene

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

Phe F5.8%

UUU60

UUC162

Leu L17.5%

UUA90

UUG21

CUU72

CUC137

CUA304

CUG42

Ile I7.7%

AUU101

AUC193

Met M4.5%

AUA135

AUG36

Val V4.4%

GUU36

GUC44

GUA69

GUG18

Ser S7.5%

UCU44

UCC79

UCA100

UCG6

AGU9

AGC48

Pro P5.8%

CCU37

CCC62

CCA111

CCG10

Thr T9.1%

ACU64

ACC148

ACA128

ACG4

Ala A7.8%

GCU69

GCC122

GCA100

GCG7

Tyr Y3.0%

UAU38

UAC75

His H2.9%

CAU29

CAC80

Gln Q2.4%

CAA82

CAG8

Asn N3.4%

AAU32

AAC97

Lys K2.3%

AAA82

AAG6

Asp D1.7%

GAU18

GAC46

Glu E2.5%

GAA84

GAG11

Cys C0.8%

UGU7

UGC24

Trp W2.8%

UGA100

UGG7

Arg R1.9%

CGU10

CGC20

CGA38

CGG4

Gly G5.8%

GGU37

GGC63

GGA91

GGG30

Stop 0.3%

UAA7

UAG0

AGA1

AGG2

Genome map

38 annotated features in NC_046764.1

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 (44.1%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Calidris tenuirostris (NC_046764.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	71	71 bp	+	–
12S rRNA	Ribosomal RNA	72	1,040	969 bp	+	46.2%
tRNA-Val	Transfer RNA	1,041	1,112	72 bp	+	–
16S rRNA	Ribosomal RNA	1,113	2,708	1,596 bp	+	42.7%
tRNA-Leu (UUR)	Transfer RNA	2,709	2,782	74 bp	+	–
ND1	Protein-coding gene	2,800	3,777	978 bp	+	45.2%
tRNA-Ile	Transfer RNA	3,778	3,848	71 bp	+	–
tRNA-Gln	Transfer RNA	3,856	3,926	71 bp	−	–
tRNA-Met	Transfer RNA	3,926	3,994	69 bp	+	–
ND2	Protein-coding gene	3,995	5,033	1,039 bp	+	42.6%
tRNA-Trp	Transfer RNA	5,034	5,102	69 bp	+	–
tRNA-Ala	Transfer RNA	5,104	5,172	69 bp	−	–
tRNA-Asn	Transfer RNA	5,175	5,247	73 bp	−	–
tRNA-Cys	Transfer RNA	5,250	5,316	67 bp	−	–
tRNA-Tyr	Transfer RNA	5,316	5,386	71 bp	−	–
COX1	Protein-coding gene	5,388	6,938	1,551 bp	+	45.5%
tRNA-Ser (UCN)	Transfer RNA	6,924	7,003	80 bp	−	–
tRNA-Asp	Transfer RNA	7,006	7,074	69 bp	+	–
COX2	Protein-coding gene	7,076	7,759	684 bp	+	45.6%
tRNA-Lys	Transfer RNA	7,761	7,831	71 bp	+	–
ATP8	Protein-coding gene	7,833	8,000	168 bp	+	42.9%
ATP6	Protein-coding gene	7,991	8,674	684 bp	+	47.4%
COX3	Protein-coding gene	8,674	9,457	784 bp	+	45.2%
tRNA-Gly	Transfer RNA	9,458	9,526	69 bp	+	–
ND3	Protein-coding gene	9,527	9,878	352 bp	+	45.3%
tRNA-Arg	Transfer RNA	9,883	9,952	70 bp	+	–
ND4L	Protein-coding gene	9,953	10,249	297 bp	+	44.4%
ND4	Protein-coding gene	10,243	11,620	1,378 bp	+	43.3%
tRNA-His	Transfer RNA	11,621	11,689	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,691	11,754	64 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,755	11,825	71 bp	+	–
ND5	Protein-coding gene	11,826	13,640	1,815 bp	+	43.8%
CYTB	Protein-coding gene	13,652	14,794	1,143 bp	+	45.4%
tRNA-Thr	Transfer RNA	14,797	14,873	77 bp	+	–
tRNA-Pro	Transfer RNA	14,879	14,948	70 bp	−	–
ND6	Protein-coding gene	14,960	15,481	522 bp	−	44.4%
tRNA-Glu	Transfer RNA	15,485	15,557	73 bp	−	–
D-loop	Control region	15,560	16,732	1,173 bp	–	41.9%