Steno bredanensis

Rough-toothed dolphin

Maximum lifespan

32 yr

AnAge record

mtDNA size

16,386 bp

RefSeq NC_042761.1

GC content

38.84%

Whole genome

Non-coding

979 bp

D-loop 916 bp

Where Rough-toothed dolphin sits among 2,335 species

Whole-genome GC content against maximum lifespan. Rough-toothed dolphin has the 393rd longest lifespan of them.

This species
Other mammals
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,386 bp

GC skew (G − C) / (G + C): −0.349
AT skew (A − T) / (A + T): +0.085

Life history

Maximum lifespan: 32 years
Adult weight: 114 kg
Female sexual maturity: 10 years
Male sexual maturity: 7.5 years

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 02302)

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 genome16,386 bp

Protein-coding11,347 bp

12S rRNA974 bp

16S rRNA1,577 bp

All tRNA1,514 bp

D-loop916 bp

Genes and regions

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

Base composition of Steno bredanensis genes

ND1NADH dehydrogenase subunit 1	957 bp	32.7%	28.5%	11.0%	27.8%	38.77%	−0.434	+0.068
ND2NADH dehydrogenase subunit 2	1,042 bp	35.5%	25.5%	7.1%	31.9%	38.96%	−0.635	+0.164
COX1Cytochrome c oxidase subunit I	1,551 bp	28.7%	31.7%	16.2%	23.4%	39.65%	−0.180	−0.049
COX2Cytochrome c oxidase subunit II	684 bp	34.1%	27.8%	13.0%	25.1%	38.16%	−0.318	+0.102
ATP8ATP synthase F0 subunit 8	207 bp	36.2%	27.5%	6.3%	30.0%	36.23%	−0.653	+0.136
ATP6ATP synthase F0 subunit 6	681 bp	31.9%	28.8%	9.8%	29.5%	39.35%	−0.500	+0.051
COX3Cytochrome c oxidase subunit III	785 bp	28.4%	28.9%	13.0%	29.7%	42.68%	−0.391	−0.009
ND3NADH dehydrogenase subunit 3	347 bp	31.4%	30.0%	11.0%	27.7%	38.62%	−0.433	+0.023
ND4LNADH dehydrogenase subunit 4L	297 bp	30.3%	31.6%	11.4%	26.6%	38.05%	−0.398	−0.022
ND4NADH dehydrogenase subunit 4	1,378 bp	31.9%	30.0%	10.2%	27.9%	38.17%	−0.464	+0.031
ND5NADH dehydrogenase subunit 5	1,821 bp	33.3%	28.4%	9.2%	29.2%	38.33%	−0.521	+0.079
ND6NADH dehydrogenase subunit 6	528 bp	42.4%	21.6%	7.0%	29.0%	35.99%	−0.611	+0.325
CYTBCytochrome b	1,140 bp	30.3%	27.4%	12.5%	29.8%	42.37%	−0.408	+0.050
12S rRNA12S ribosomal RNA	974 bp	36.3%	23.2%	18.3%	22.2%	40.45%	−0.096	+0.221
16S rRNA16S ribosomal RNA	1,577 bp	37.0%	25.2%	17.3%	20.5%	37.86%	−0.085	+0.190
D-loopControl region (D-loop)	916 bp	29.9%	32.2%	14.0%	23.9%	37.88%	−0.262	−0.037

Codon usage

Counts per codon, darker is more frequent

Gene

3,804 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F6.3%

UUU96

UUC145

Leu L17.0%

UUA133

UUG18

CUU83

CUC110

CUA290

CUG11

Ile I8.4%

AUU148

AUC170

Met M6.2%

AUA197

AUG37

Val V4.4%

GUU42

GUC33

GUA80

GUG12

Ser S6.8%

UCU56

UCC61

UCA88

UCG2

AGU16

AGC34

Pro P5.3%

CCU60

CCC70

CCA67

CCG3

Thr T9.0%

ACU69

ACC93

ACA178

ACG3

Ala A6.5%

GCU68

GCC79

GCA96

GCG3

Tyr Y3.4%

UAU74

UAC57

His H2.5%

CAU31

CAC65

Gln Q2.6%

CAA92

CAG6

Asn N4.3%

AAU67

AAC95

Lys K2.6%

AAA93

AAG5

Asp D1.8%

GAU23

GAC45

Glu E2.4%

GAA76

GAG15

Cys C0.6%

UGU10

UGC12

Trp W2.7%

UGA96

UGG8

Arg R1.7%

CGU9

CGC14

CGA38

CGG2

Gly G5.5%

GGU40

GGC67

GGA87

GGG17

Stop 0.2%

UAA6

UAG1

AGA2

AGG0

Genome map

38 annotated features in NC_042761.1

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 (38.8%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Steno bredanensis (NC_042761.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	71	71 bp	+	–
12S rRNA	Ribosomal RNA	72	1,045	974 bp	+	40.5%
tRNA-Val	Transfer RNA	1,046	1,112	67 bp	+	–
16S rRNA	Ribosomal RNA	1,113	2,689	1,577 bp	+	37.9%
tRNA-Leu (UUR)	Transfer RNA	2,690	2,764	75 bp	+	–
ND1	Protein-coding gene	2,766	3,722	957 bp	+	38.8%
tRNA-Ile	Transfer RNA	3,727	3,795	69 bp	+	–
tRNA-Gln	Transfer RNA	3,793	3,865	73 bp	−	–
tRNA-Met	Transfer RNA	3,867	3,935	69 bp	+	–
ND2	Protein-coding gene	3,936	4,977	1,042 bp	+	39.0%
tRNA-Trp	Transfer RNA	4,978	5,046	69 bp	+	–
tRNA-Ala	Transfer RNA	5,052	5,120	69 bp	−	–
tRNA-Asn	Transfer RNA	5,121	5,195	75 bp	−	–
tRNA-Cys	Transfer RNA	5,228	5,294	67 bp	−	–
tRNA-Tyr	Transfer RNA	5,295	5,360	66 bp	−	–
COX1	Protein-coding gene	5,362	6,912	1,551 bp	+	39.7%
tRNA-Ser (UCN)	Transfer RNA	6,908	6,976	69 bp	−	–
tRNA-Asp	Transfer RNA	6,984	7,051	68 bp	+	–
COX2	Protein-coding gene	7,052	7,735	684 bp	+	38.2%
tRNA-Lys	Transfer RNA	7,739	7,803	65 bp	+	–
ATP8	Protein-coding gene	7,808	8,014	207 bp	+	36.2%
ATP6	Protein-coding gene	7,969	8,649	681 bp	+	39.4%
COX3	Protein-coding gene	8,649	9,433	785 bp	+	42.7%
tRNA-Gly	Transfer RNA	9,434	9,502	69 bp	+	–
ND3	Protein-coding gene	9,503	9,849	347 bp	+	38.6%
tRNA-Arg	Transfer RNA	9,850	9,919	70 bp	+	–
ND4L	Protein-coding gene	9,920	10,216	297 bp	+	38.1%
ND4	Protein-coding gene	10,210	11,587	1,378 bp	+	38.2%
tRNA-His	Transfer RNA	11,588	11,656	69 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,657	11,717	61 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,719	11,788	70 bp	+	–
ND5	Protein-coding gene	11,789	13,609	1,821 bp	+	38.3%
ND6	Protein-coding gene	13,593	14,120	528 bp	−	36.0%
tRNA-Glu	Transfer RNA	14,121	14,189	69 bp	−	–
CYTB	Protein-coding gene	14,194	15,333	1,140 bp	+	42.4%
tRNA-Thr	Transfer RNA	15,334	15,404	71 bp	+	–
tRNA-Pro	Transfer RNA	15,404	15,470	67 bp	−	–
D-loop	Control region	15,471	16,386	916 bp	–	37.9%