Lepisosteus osseus

Longnose gar

Maximum lifespan

36 yr

AnAge record

mtDNA size

16,328 bp

RefSeq NC_008104.1

GC content

42.50%

Whole genome

Non-coding

651 bp

D-loop 578 bp

Where Longnose gar sits among 2,335 species

Whole-genome GC content against maximum lifespan. Longnose gar has the 310th longest lifespan of them.

This species
Other ray-finned fishes
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,328 bp

GC skew (G − C) / (G + C): −0.282
AT skew (A − T) / (A + T): +0.075

Life history

Maximum lifespan: 36 years
Adult weight: 12.5 kg
Female sexual maturity: 6 years
Male sexual maturity: 3.5 years

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 01885)

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 genome16,328 bp

Protein-coding11,485 bp

12S rRNA958 bp

16S rRNA1,689 bp

All tRNA1,559 bp

D-loop578 bp

Genes and regions

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

Base composition of Lepisosteus osseus genes

ND1NADH dehydrogenase subunit 1	975 bp	29.5%	28.1%	13.4%	28.9%	42.36%	−0.366	+0.025
ND2NADH dehydrogenase subunit 2	1,045 bp	34.7%	25.8%	10.3%	29.1%	39.43%	−0.476	+0.147
COX1Cytochrome c oxidase subunit I	1,557 bp	26.8%	29.8%	17.4%	26.0%	43.42%	−0.198	−0.053
COX2Cytochrome c oxidase subunit II	699 bp	30.8%	28.2%	15.3%	25.8%	41.06%	−0.254	+0.044
ATP8ATP synthase F0 subunit 8	168 bp	29.2%	26.8%	9.5%	34.5%	44.05%	−0.568	+0.043
ATP6ATP synthase F0 subunit 6	683 bp	27.4%	29.7%	12.2%	30.7%	42.90%	−0.433	−0.041
COX3Cytochrome c oxidase subunit III	785 bp	27.3%	26.8%	16.2%	29.8%	45.99%	−0.296	+0.009
ND3NADH dehydrogenase subunit 3	349 bp	26.4%	28.9%	13.2%	31.5%	44.70%	−0.410	−0.047
ND4LNADH dehydrogenase subunit 4L	297 bp	27.6%	28.6%	14.5%	29.3%	43.77%	−0.338	−0.018
ND4NADH dehydrogenase subunit 4	1,381 bp	29.5%	28.3%	13.7%	28.5%	42.14%	−0.351	+0.021
ND5NADH dehydrogenase subunit 5	1,908 bp	31.6%	27.3%	11.9%	29.2%	41.14%	−0.419	+0.072
ND6NADH dehydrogenase subunit 6	519 bp	40.7%	15.2%	11.2%	32.9%	44.12%	−0.493	+0.455
CYTBCytochrome b	1,141 bp	28.2%	29.6%	14.0%	28.1%	42.16%	−0.335	−0.024
12S rRNA12S ribosomal RNA	958 bp	32.5%	20.0%	21.3%	26.2%	47.50%	−0.103	+0.237
16S rRNA16S ribosomal RNA	1,689 bp	35.4%	22.4%	19.0%	23.2%	42.21%	−0.100	+0.225
D-loopControl region (D-loop)	578 bp	32.4%	35.1%	14.9%	17.6%	32.53%	−0.085	−0.041

Codon usage

Counts per codon, darker is more frequent

Gene

3,833 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.0%

UUU126

UUC105

Leu L16.8%

UUA123

UUG30

CUU119

CUC110

CUA227

CUG35

Ile I7.8%

AUU193

AUC107

Met M4.8%

AUA142

AUG43

Val V5.2%

GUU62

GUC39

GUA83

GUG16

Ser S6.3%

UCU32

UCC73

UCA77

UCG7

AGU19

AGC33

Pro P5.9%

CCU32

CCC79

CCA107

CCG8

Thr T8.5%

ACU50

ACC135

ACA132

ACG8

Ala A8.1%

GCU65

GCC128

GCA101

GCG16

Tyr Y3.2%

UAU61

UAC61

His H2.6%

CAU29

CAC69

Gln Q2.6%

CAA94

CAG7

Asn N3.2%

AAU40

AAC83

Lys K2.2%

AAA76

AAG7

Asp D2.0%

GAU19

GAC56

Glu E2.7%

GAA85

GAG18

Cys C0.8%

UGU11

UGC18

Trp W3.2%

UGA112

UGG10

Arg R2.0%

CGU6

CGC10

CGA54

CGG6

Gly G6.1%

GGU30

GGC51

GGA117

GGG34

Stop 0.2%

UAA4

UAG0

AGA2

AGG1

Genome map

38 annotated features in NC_008104.1

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 (42.5%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Lepisosteus osseus (NC_008104.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	68	68 bp	+	–
12S rRNA	Ribosomal RNA	69	1,026	958 bp	+	47.5%
tRNA-Val	Transfer RNA	1,027	1,097	71 bp	+	–
16S rRNA	Ribosomal RNA	1,098	2,786	1,689 bp	+	42.2%
tRNA-Leu (UUR)	Transfer RNA	2,787	2,861	75 bp	+	–
ND1	Protein-coding gene	2,862	3,836	975 bp	+	42.4%
tRNA-Ile	Transfer RNA	3,844	3,914	71 bp	+	–
tRNA-Gln	Transfer RNA	3,914	3,984	71 bp	−	–
tRNA-Met	Transfer RNA	3,984	4,052	69 bp	+	–
ND2	Protein-coding gene	4,053	5,097	1,045 bp	+	39.4%
tRNA-Trp	Transfer RNA	5,098	5,168	71 bp	+	–
tRNA-Ala	Transfer RNA	5,170	5,238	69 bp	−	–
tRNA-Asn	Transfer RNA	5,240	5,312	73 bp	−	–
tRNA-Cys	Transfer RNA	5,351	5,416	66 bp	−	–
tRNA-Tyr	Transfer RNA	5,416	5,486	71 bp	−	–
COX1	Protein-coding gene	5,488	7,044	1,557 bp	+	43.4%
tRNA-Ser (UCN)	Transfer RNA	7,040	7,110	71 bp	−	–
tRNA-Asp	Transfer RNA	7,113	7,188	76 bp	+	–
COX2	Protein-coding gene	7,199	7,897	699 bp	+	41.1%
tRNA-Lys	Transfer RNA	7,889	7,962	74 bp	+	–
ATP8	Protein-coding gene	7,963	8,130	168 bp	+	44.1%
ATP6	Protein-coding gene	8,121	8,803	683 bp	+	42.9%
COX3	Protein-coding gene	8,804	9,588	785 bp	+	46.0%
tRNA-Gly	Transfer RNA	9,589	9,660	72 bp	+	–
ND3	Protein-coding gene	9,661	10,009	349 bp	+	44.7%
tRNA-Arg	Transfer RNA	10,010	10,079	70 bp	+	–
ND4L	Protein-coding gene	10,080	10,376	297 bp	+	43.8%
ND4	Protein-coding gene	10,370	11,750	1,381 bp	+	42.1%
tRNA-His	Transfer RNA	11,751	11,819	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,819	11,890	72 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,891	11,962	72 bp	+	–
ND5	Protein-coding gene	11,963	13,870	1,908 bp	+	41.1%
ND6	Protein-coding gene	13,866	14,384	519 bp	−	44.1%
tRNA-Glu	Transfer RNA	14,385	14,453	69 bp	−	–
CYTB	Protein-coding gene	14,457	15,597	1,141 bp	+	42.2%
tRNA-Thr	Transfer RNA	15,598	15,670	73 bp	+	–
tRNA-Pro	Transfer RNA	15,681	15,750	70 bp	−	–
D-loop	Control region	15,751	16,328	578 bp	–	32.5%