Halcyon smyrnensis

White-throated kingfisher

Maximum lifespan

5.5 yr

AnAge record

mtDNA size

17,892 bp

RefSeq NC_035746.1

GC content

45.73%

Whole genome

Non-coding

2,418 bp

D-loop 2,397 bp

Where White-throated kingfisher sits among 2,335 species

Whole-genome GC content against maximum lifespan. White-throated kingfisher has the 1,968th longest lifespan of them.

This species
Other birds
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome17,892 bp

GC skew (G − C) / (G + C): −0.409
AT skew (A − T) / (A + T): +0.140

Life history

Maximum lifespan: 5.5 years
Adult weight: 91.4 g

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 00617)

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 genome17,892 bp

Protein-coding11,373 bp

12S rRNA973 bp

16S rRNA1,586 bp

All tRNA1,554 bp

D-loop2,397 bp

Genes and regions

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

Base composition of Halcyon smyrnensis genes

ND1NADH dehydrogenase subunit 1	978 bp	27.4%	24.8%	13.2%	34.6%	47.75%	−0.448	+0.049
ND2NADH dehydrogenase subunit 2	1,036 bp	32.2%	23.5%	9.5%	34.8%	44.31%	−0.573	+0.158
COX1Cytochrome c oxidase subunit I	1,551 bp	27.5%	25.0%	15.8%	31.7%	47.52%	−0.335	+0.047
COX2Cytochrome c oxidase subunit II	684 bp	30.6%	22.8%	14.0%	32.6%	46.64%	−0.398	+0.145
ATP8ATP synthase F0 subunit 8	168 bp	37.5%	20.8%	4.8%	36.9%	41.67%	−0.771	+0.286
ATP6ATP synthase F0 subunit 6	684 bp	28.8%	23.8%	9.5%	37.9%	47.37%	−0.599	+0.094
COX3Cytochrome c oxidase subunit III	784 bp	29.1%	23.2%	14.8%	32.9%	47.70%	−0.380	+0.112
ND3NADH dehydrogenase subunit 3	351 bp	28.2%	25.6%	11.4%	34.8%	46.15%	−0.506	+0.048
ND4LNADH dehydrogenase subunit 4L	297 bp	27.9%	25.3%	13.1%	33.7%	46.80%	−0.439	+0.051
ND4NADH dehydrogenase subunit 4	1,378 bp	30.0%	21.6%	10.5%	37.9%	48.40%	−0.565	+0.162
ND5NADH dehydrogenase subunit 5	1,815 bp	31.7%	21.5%	10.8%	35.9%	46.72%	−0.538	+0.191
ND6NADH dehydrogenase subunit 6	522 bp	39.1%	9.8%	8.2%	42.9%	51.15%	−0.678	+0.600
CYTBCytochrome b	1,143 bp	26.9%	23.9%	12.3%	36.9%	49.26%	−0.499	+0.059
12S rRNA12S ribosomal RNA	973 bp	31.6%	18.7%	20.2%	29.5%	49.74%	−0.186	+0.256
16S rRNA16S ribosomal RNA	1,586 bp	33.8%	20.4%	17.9%	27.9%	45.78%	−0.218	+0.247
D-loopControl region (D-loop)	2,397 bp	32.9%	30.0%	13.4%	23.8%	37.13%	−0.281	+0.046

Codon usage

Counts per codon, darker is more frequent

Gene

3,796 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.0%

UUU49

UUC177

Leu L17.4%

UUA50

UUG22

CUU63

CUC165

CUA332

CUG27

Ile I7.6%

AUU68

AUC220

Met M4.5%

AUA135

AUG35

Val V4.5%

GUU29

GUC48

GUA69

GUG25

Ser S7.3%

UCU18

UCC119

UCA85

UCG3

AGU7

AGC46

Pro P6.1%

CCU19

CCC104

CCA105

CCG2

Thr T9.2%

ACU40

ACC169

ACA134

ACG7

Ala A7.8%

GCU43

GCC150

GCA97

GCG5

Tyr Y3.0%

UAU26

UAC86

His H2.8%

CAU17

CAC91

Gln Q2.5%

CAA84

CAG10

Asn N3.6%

AAU20

AAC115

Lys K2.3%

AAA83

AAG4

Asp D1.7%

GAU12

GAC52

Glu E2.4%

GAA80

GAG13

Cys C0.8%

UGU7

UGC22

Trp W2.8%

UGA91

UGG16

Arg R1.8%

CGU6

CGC21

CGA37

CGG3

Gly G5.9%

GGU21

GGC83

GGA80

GGG39

Stop 0.3%

UAA6

UAG2

AGA0

AGG2

Genome map

38 annotated features in NC_035746.1

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 (45.7%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Halcyon smyrnensis (NC_035746.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	69	69 bp	+	–
12S rRNA	Ribosomal RNA	70	1,042	973 bp	+	49.7%
tRNA-Val	Transfer RNA	1,043	1,112	70 bp	+	–
16S rRNA	Ribosomal RNA	1,113	2,698	1,586 bp	+	45.8%
tRNA-Leu (UUR)	Transfer RNA	2,699	2,772	74 bp	+	–
ND1	Protein-coding gene	2,797	3,774	978 bp	+	47.8%
tRNA-Ile	Transfer RNA	3,772	3,846	75 bp	+	–
tRNA-Gln	Transfer RNA	3,855	3,925	71 bp	−	–
tRNA-Met	Transfer RNA	3,925	3,993	69 bp	+	–
ND2	Protein-coding gene	3,994	5,029	1,036 bp	+	44.3%
tRNA-Trp	Transfer RNA	5,030	5,105	76 bp	+	–
tRNA-Ala	Transfer RNA	5,107	5,175	69 bp	−	–
tRNA-Asn	Transfer RNA	5,184	5,256	73 bp	−	–
tRNA-Cys	Transfer RNA	5,259	5,326	68 bp	−	–
tRNA-Tyr	Transfer RNA	5,326	5,396	71 bp	−	–
COX1	Protein-coding gene	5,398	6,948	1,551 bp	+	47.5%
tRNA-Ser (UCN)	Transfer RNA	6,940	7,012	73 bp	−	–
tRNA-Asp	Transfer RNA	7,015	7,085	71 bp	+	–
COX2	Protein-coding gene	7,087	7,770	684 bp	+	46.6%
tRNA-Lys	Transfer RNA	7,771	7,842	72 bp	+	–
ATP8	Protein-coding gene	7,844	8,011	168 bp	+	41.7%
ATP6	Protein-coding gene	8,002	8,685	684 bp	+	47.4%
COX3	Protein-coding gene	8,685	9,468	784 bp	+	47.7%
tRNA-Gly	Transfer RNA	9,469	9,537	69 bp	+	–
ND3	Protein-coding gene	9,538	9,889	352 bp	+	46.2%
tRNA-Arg	Transfer RNA	9,894	9,962	69 bp	+	–
ND4L	Protein-coding gene	9,964	10,260	297 bp	+	46.8%
ND4	Protein-coding gene	10,254	11,631	1,378 bp	+	48.4%
tRNA-His	Transfer RNA	11,632	11,701	70 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,702	11,766	65 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,767	11,838	72 bp	+	–
ND5	Protein-coding gene	11,839	13,653	1,815 bp	+	46.7%
CYTB	Protein-coding gene	13,667	14,809	1,143 bp	+	49.3%
tRNA-Thr	Transfer RNA	14,810	14,878	69 bp	+	–
tRNA-Pro	Transfer RNA	14,887	14,957	71 bp	−	–
ND6	Protein-coding gene	14,965	15,486	522 bp	−	51.2%
tRNA-Glu	Transfer RNA	15,490	15,559	70 bp	−	–
D-loop	Control region	15,491	17,887	2,397 bp	–	37.1%