MitoAge

Hexaprotodon liberiensis

Pygmy hippopotamus

Add to compare Download FASTA
Maximum lifespan
42.3 yr
AnAge record
mtDNA size
16,396 bp
RefSeq NC_020697.1
GC content
42.07%
Whole genome
Non-coding
1,010 bp
D-loop 509 bp

Where Pygmy hippopotamus sits among 2,335 species

Whole-genome GC content against maximum lifespan. Pygmy hippopotamus has the 224th longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Pygmy hippopotamus
  • This species
  • Other mammals
  • Other classes
Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,396 bp
GC skew (G − C) / (G + C)
−0.344
AT skew (A − T) / (A + T)
+0.136

Life history

Maximum lifespan
42.3 years
Adult weight
215 kg
Birth weight
4.9 kg
Female sexual maturity
3.5 years
Male sexual maturity
4.5 years
Gestation or incubation
199 days
Litter or clutch size
1
Litters per year
0.4

Lifespan from AnAge · AnAge record · other traits from AnAge Build 15 (HAGRID 02048)

About this record

Lifespan source
AnAge build 15
Based on
an animal in captivity
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 genome16,396 bp
Protein-coding11,350 bp
12S rRNA967 bp
16S rRNA1,565 bp
All tRNA1,511 bp
D-loop509 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1956 bp32.0%24.5%11.5%32.0%43.52%−0.471+0.133
ND2NADH dehydrogenase subunit 21,042 bp36.1%24.8%8.6%30.5%39.16%−0.559+0.186
COX1Cytochrome c oxidase subunit I1,557 bp28.3%27.9%16.6%27.1%43.77%−0.239+0.006
COX2Cytochrome c oxidase subunit II684 bp33.5%24.9%14.2%27.5%41.67%−0.319+0.148
ATP8ATP synthase F0 subunit 8207 bp37.2%24.2%6.3%32.4%38.65%−0.675+0.213
ATP6ATP synthase F0 subunit 6681 bp32.3%24.8%11.6%31.3%42.88%−0.459+0.131
COX3Cytochrome c oxidase subunit III784 bp27.0%27.2%15.8%30.0%45.79%−0.309−0.002
ND3NADH dehydrogenase subunit 3346 bp30.9%25.7%12.4%30.9%43.35%−0.427+0.092
ND4LNADH dehydrogenase subunit 4L297 bp32.7%31.3%12.5%23.6%36.03%−0.308+0.021
ND4NADH dehydrogenase subunit 41,378 bp32.0%25.4%11.2%31.4%42.60%−0.475+0.115
ND5NADH dehydrogenase subunit 51,821 bp33.0%24.9%10.9%31.2%42.12%−0.481+0.140
ND6NADH dehydrogenase subunit 6528 bp41.7%16.3%8.0%34.1%42.05%−0.622+0.438
CYTBCytochrome b1,140 bp30.2%24.5%13.5%31.8%45.35%−0.404+0.104
12S rRNA12S ribosomal RNA967 bp37.8%20.7%17.2%24.3%41.47%−0.172+0.293
16S rRNA16S ribosomal RNA1,565 bp37.6%23.1%17.2%22.0%39.23%−0.124+0.239
D-loopControl region (D-loop)509 bp26.3%30.3%18.5%25.0%43.42%−0.149−0.069

Codon usage

Counts per codon, darker is more frequent

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

Phe F6.2%
UUU91
UUC144
Leu L15.9%
UUA72
UUG17
CUU57
CUC109
CUA301
CUG48
Ile I8.3%
AUU108
AUC206
Met M6.3%
AUA193
AUG48
Val V5.0%
GUU30
GUC52
GUA88
GUG22
Ser S7.1%
UCU32
UCC81
UCA94
UCG6
AGU15
AGC41
Pro P5.3%
CCU35
CCC80
CCA85
CCG2
Thr T9.0%
ACU46
ACC105
ACA182
ACG9
Ala A6.8%
GCU31
GCC112
GCA103
GCG11
Tyr Y3.4%
UAU48
UAC81
His H2.5%
CAU21
CAC75
Gln Q2.4%
CAA82
CAG8
Asn N4.2%
AAU41
AAC118
Lys K2.6%
AAA90
AAG9
Asp D1.8%
GAU19
GAC51
Glu E2.4%
GAA67
GAG23
Cys C0.6%
UGU7
UGC15
Trp W2.7%
UGA93
UGG11
Arg R1.7%
CGU8
CGC13
CGA41
CGG2
Gly G5.7%
GGU34
GGC68
GGA85
GGG30
Stop 0.2%
UAA4
UAG2
AGA2
AGG0

Genome map

38 annotated features in NC_020697.1

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 (42.1%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 38 features as a table
FeatureTypeStartEndLengthStrandGC
tRNA-PheTransfer RNA37169 bp+–
12S rRNARibosomal RNA721,038967 bp+41.5%
tRNA-ValTransfer RNA1,0391,10769 bp+–
16S rRNARibosomal RNA1,1082,6721,565 bp+39.2%
tRNA-Leu (UUR)Transfer RNA2,6732,74674 bp+–
ND1Protein-coding gene2,7493,704956 bp+43.5%
tRNA-IleTransfer RNA3,7053,77369 bp+–
tRNA-GlnTransfer RNA3,7713,84171 bp−–
tRNA-MetTransfer RNA3,8443,91269 bp+–
ND2Protein-coding gene3,9134,9541,042 bp+39.2%
tRNA-TrpTransfer RNA4,9555,02167 bp+–
tRNA-AlaTransfer RNA5,0235,09573 bp−–
tRNA-AsnTransfer RNA5,0975,17074 bp−–
tRNA-CysTransfer RNA5,2035,27068 bp−–
tRNA-TyrTransfer RNA5,2715,33666 bp−–
COX1Protein-coding gene5,3386,8941,557 bp+43.8%
tRNA-Ser (UCN)Transfer RNA6,8886,95871 bp−–
tRNA-AspTransfer RNA6,9647,03067 bp+–
COX2Protein-coding gene7,0317,714684 bp+41.7%
tRNA-LysTransfer RNA7,7187,78164 bp+–
ATP8Protein-coding gene7,7837,989207 bp+38.7%
ATP6Protein-coding gene7,9448,624681 bp+42.9%
COX3Protein-coding gene8,6249,407784 bp+45.8%
tRNA-GlyTransfer RNA9,4099,47870 bp+–
ND3Protein-coding gene9,4799,824346 bp+43.4%
tRNA-ArgTransfer RNA9,8259,89470 bp+–
ND4LProtein-coding gene9,89510,191297 bp+36.0%
ND4Protein-coding gene10,18511,5621,378 bp+42.6%
tRNA-HisTransfer RNA11,56311,63270 bp+–
tRNA-Ser (AGY)Transfer RNA11,63311,69159 bp+–
tRNA-Leu (CUN)Transfer RNA11,69311,76270 bp+–
ND5Protein-coding gene11,76313,5831,821 bp+42.1%
ND6Protein-coding gene13,56714,094528 bp−42.1%
tRNA-GluTransfer RNA14,09514,16369 bp−–
CYTBProtein-coding gene14,16815,3071,140 bp+45.4%
tRNA-ThrTransfer RNA15,30815,37770 bp+–
tRNA-ProTransfer RNA15,37715,44266 bp−–
D-loopControl region15,50616,014509 bp–43.4%

Downloads