Micropterus salmoides

Largemouth bass

Maximum lifespan

23 yr

AnAge record

mtDNA size

16,484 bp

RefSeq NC_008106.1

GC content

46.52%

Whole genome

Non-coding

890 bp

Including the D-loop

Where Largemouth bass sits among 2,335 species

Whole-genome GC content against maximum lifespan. Largemouth bass has the 726th longest lifespan of them.

This species
Other ray-finned fishes
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,484 bp

GC skew (G − C) / (G + C): −0.273
AT skew (A − T) / (A + T): +0.002

Life history

Maximum lifespan: 23 years
Adult weight: 5.5 kg
Female sexual maturity: 4.5 years
Male sexual maturity: 3.5 years

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 04129)

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 genome16,484 bp

Protein-coding11,407 bp

12S rRNA947 bp

16S rRNA1,689 bp

All tRNA1,551 bp

Genes and regions

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

Base composition of Micropterus salmoides genes

ND1NADH dehydrogenase subunit 1	975 bp	25.1%	28.6%	14.9%	31.4%	46.26%	−0.357	−0.065
ND2NADH dehydrogenase subunit 2	1,046 bp	26.1%	26.1%	12.7%	35.1%	47.80%	−0.468	0.000
COX1Cytochrome c oxidase subunit I	1,551 bp	23.1%	29.8%	18.6%	28.5%	47.13%	−0.209	−0.127
COX2Cytochrome c oxidase subunit II	691 bp	27.6%	27.1%	16.9%	28.4%	45.30%	−0.252	+0.011
ATP8ATP synthase F0 subunit 8	168 bp	28.0%	25.0%	11.3%	35.7%	47.02%	−0.519	+0.056
ATP6ATP synthase F0 subunit 6	684 bp	24.1%	30.4%	13.3%	32.2%	45.47%	−0.415	−0.115
COX3Cytochrome c oxidase subunit III	785 bp	23.4%	28.8%	17.8%	29.9%	47.77%	−0.253	−0.102
ND3NADH dehydrogenase subunit 3	349 bp	20.9%	28.7%	17.5%	33.0%	50.43%	−0.307	−0.156
ND4LNADH dehydrogenase subunit 4L	297 bp	20.9%	29.3%	15.2%	34.7%	49.83%	−0.392	−0.168
ND4NADH dehydrogenase subunit 4	1,381 bp	24.3%	28.0%	15.3%	32.4%	47.65%	−0.359	−0.071
ND5NADH dehydrogenase subunit 5	1,839 bp	26.2%	28.1%	14.2%	31.5%	45.79%	−0.378	−0.035
ND6NADH dehydrogenase subunit 6	522 bp	36.8%	15.9%	13.4%	33.9%	47.32%	−0.433	+0.396
CYTBCytochrome b	1,141 bp	22.2%	28.7%	16.1%	33.0%	49.08%	−0.343	−0.129
12S rRNA12S ribosomal RNA	947 bp	31.4%	21.5%	21.5%	25.6%	47.10%	−0.085	+0.186
16S rRNA16S ribosomal RNA	1,689 bp	32.5%	21.7%	20.9%	24.9%	45.83%	−0.088	+0.200

Codon usage

Counts per codon, darker is more frequent

Gene

3,807 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.1%

UUU121

UUC113

Leu L17.6%

UUA90

UUG20

CUU171

CUC177

CUA158

CUG53

Ile I7.0%

AUU160

AUC107

Met M3.9%

AUA85

AUG62

Val V5.9%

GUU65

GUC61

GUA63

GUG35

Ser S6.2%

UCU46

UCC76

UCA52

UCG12

AGU8

AGC43

Pro P5.9%

CCU62

CCC111

CCA41

CCG9

Thr T7.9%

ACU59

ACC126

ACA104

ACG12

Ala A9.2%

GCU54

GCC181

GCA104

GCG13

Tyr Y2.8%

UAU34

UAC74

His H2.8%

CAU38

CAC69

Gln Q2.5%

CAA73

CAG22

Asn N3.2%

AAU48

AAC74

Lys K1.9%

AAA55

AAG16

Asp D1.9%

GAU23

GAC50

Glu E2.7%

GAA76

GAG27

Cys C0.7%

UGU7

UGC18

Trp W3.1%

UGA95

UGG24

Arg R2.0%

CGU9

CGC21

CGA38

CGG9

Gly G6.5%

GGU46

GGC93

GGA63

GGG44

Stop 0.2%

UAA7

UAG0

AGA0

AGG0

Genome map

37 annotated features in NC_008106.1

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

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 37 features as a table

Annotated features of Micropterus salmoides (NC_008106.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	68	68 bp	+	–
12S rRNA	Ribosomal RNA	69	1,015	947 bp	+	47.1%
tRNA-Val	Transfer RNA	1,016	1,087	72 bp	+	–
16S rRNA	Ribosomal RNA	1,088	2,776	1,689 bp	+	45.8%
tRNA-Leu (UUR)	Transfer RNA	2,777	2,850	74 bp	+	–
ND1	Protein-coding gene	2,851	3,825	975 bp	+	46.3%
tRNA-Ile	Transfer RNA	3,830	3,899	70 bp	+	–
tRNA-Gln	Transfer RNA	3,899	3,969	71 bp	−	–
tRNA-Met	Transfer RNA	3,969	4,037	69 bp	+	–
ND2	Protein-coding gene	4,038	5,083	1,046 bp	+	47.8%
tRNA-Trp	Transfer RNA	5,084	5,154	71 bp	+	–
tRNA-Ala	Transfer RNA	5,157	5,224	68 bp	−	–
tRNA-Asn	Transfer RNA	5,226	5,298	73 bp	−	–
tRNA-Cys	Transfer RNA	5,335	5,400	66 bp	−	–
tRNA-Tyr	Transfer RNA	5,401	5,470	70 bp	−	–
COX1	Protein-coding gene	5,472	7,022	1,551 bp	+	47.1%
tRNA-Ser (UCN)	Transfer RNA	7,023	7,093	71 bp	−	–
tRNA-Asp	Transfer RNA	7,097	7,172	76 bp	+	–
COX2	Protein-coding gene	7,181	7,871	691 bp	+	45.3%
tRNA-Lys	Transfer RNA	7,872	7,944	73 bp	+	–
ATP8	Protein-coding gene	7,946	8,113	168 bp	+	47.0%
ATP6	Protein-coding gene	8,104	8,787	684 bp	+	45.5%
COX3	Protein-coding gene	8,787	9,571	785 bp	+	47.8%
tRNA-Gly	Transfer RNA	9,572	9,643	72 bp	+	–
ND3	Protein-coding gene	9,644	9,992	349 bp	+	50.4%
tRNA-Arg	Transfer RNA	9,993	10,061	69 bp	+	–
ND4L	Protein-coding gene	10,062	10,358	297 bp	+	49.8%
ND4	Protein-coding gene	10,352	11,732	1,381 bp	+	47.7%
tRNA-His	Transfer RNA	11,733	11,801	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,802	11,869	68 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,874	11,946	73 bp	+	–
ND5	Protein-coding gene	11,947	13,785	1,839 bp	+	45.8%
ND6	Protein-coding gene	13,782	14,303	522 bp	−	47.3%
tRNA-Glu	Transfer RNA	14,304	14,372	69 bp	−	–
CYTB	Protein-coding gene	14,377	15,517	1,141 bp	+	49.1%
tRNA-Thr	Transfer RNA	15,518	15,589	72 bp	+	–
tRNA-Pro	Transfer RNA	15,589	15,658	70 bp	−	–