MitoAge

Dipodomys merriami

Merriam's kangaroo rat

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Maximum lifespan
9.7 yr
AnAge record
mtDNA size
16,260 bp
RefSeq NC_068807.1
GC content
38.15%
Whole genome
Non-coding
872 bp
Including the D-loop

Where Merriam's kangaroo rat sits among 2,335 species

Whole-genome GC content against maximum lifespan. Merriam's kangaroo rat has the 1,623rd longest lifespan of them.

10203040501 yr10 yr100 yrMaximum lifespan, log scaleGC %Merriam's kangaroo rat
  • This species
  • Other mammals
  • Other classes
Plot other mtDNA features with this species highlighted

Base composition

Whole genome16,260 bp
GC skew (G − C) / (G + C)
−0.350
AT skew (A − T) / (A + T)
+0.076

Life history

Maximum lifespan
9.7 years
Adult weight
42 g
Birth weight
2.9 g
Basal metabolic rate
0.246 W
Body temperature
37 °C
Female sexual maturity
102 days
Gestation or incubation
28 days
Litter or clutch size
2.3
Litters per year
1.6
Postnatal growth rate
0.0368 per day

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 02993)

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
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 genome16,260 bp
Protein-coding11,334 bp
12S rRNA964 bp
16S rRNA1,587 bp
All tRNA1,509 bp

Genes and regions

Select a column to sort; select a gene to compare it across species
Composition
ND1NADH dehydrogenase subunit 1957 bp30.9%29.9%11.1%28.1%39.19%−0.435+0.017
ND2NADH dehydrogenase subunit 21,042 bp35.7%28.6%7.7%28.0%35.70%−0.570+0.110
COX1Cytochrome c oxidase subunit I1,548 bp30.2%29.8%15.3%24.6%39.92%−0.233+0.006
COX2Cytochrome c oxidase subunit II684 bp33.3%27.0%13.0%26.6%39.62%−0.343+0.104
ATP8ATP synthase F0 subunit 8207 bp36.7%26.1%5.3%31.9%37.20%−0.714+0.169
ATP6ATP synthase F0 subunit 6681 bp30.5%28.6%11.0%29.8%40.82%−0.460+0.032
COX3Cytochrome c oxidase subunit III784 bp29.7%28.8%13.9%27.6%41.45%−0.329+0.015
ND3NADH dehydrogenase subunit 3346 bp28.9%32.1%11.0%28.0%39.02%−0.437−0.052
ND4LNADH dehydrogenase subunit 4L297 bp30.6%33.0%9.1%27.3%36.36%−0.500−0.037
ND4NADH dehydrogenase subunit 41,375 bp33.7%28.7%9.1%28.5%37.60%−0.516+0.082
ND5NADH dehydrogenase subunit 51,806 bp33.1%29.7%9.4%27.9%37.21%−0.497+0.053
ND6NADH dehydrogenase subunit 6525 bp37.9%23.2%8.2%30.7%38.86%−0.578+0.240
CYTBCytochrome b1,140 bp29.1%29.5%13.4%28.0%41.40%−0.352−0.006
12S rRNA12S ribosomal RNA964 bp36.7%24.8%17.7%20.7%38.49%−0.078+0.194
16S rRNA16S ribosomal RNA1,587 bp37.6%25.0%16.5%20.9%37.43%−0.118+0.200

Codon usage

Counts per codon, darker is more frequent

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

Phe F6.4%
UUU98
UUC146
Leu L14.6%
UUA106
UUG9
CUU106
CUC83
CUA234
CUG18
Ile I9.8%
AUU162
AUC211
Met M6.5%
AUA213
AUG32
Val V4.3%
GUU40
GUC32
GUA75
GUG15
Ser S8.3%
UCU57
UCC65
UCA135
UCG6
AGU19
AGC32
Pro P5.4%
CCU37
CCC47
CCA119
CCG3
Thr T7.9%
ACU82
ACC87
ACA127
ACG5
Ala A6.5%
GCU52
GCC86
GCA106
GCG2
Tyr Y3.7%
UAU70
UAC69
His H2.5%
CAU37
CAC59
Gln Q2.2%
CAA82
CAG3
Asn N4.1%
AAU58
AAC96
Lys K2.4%
AAA88
AAG3
Asp D2.0%
GAU31
GAC45
Glu E2.4%
GAA82
GAG9
Cys C0.7%
UGU9
UGC17
Trp W2.8%
UGA100
UGG6
Arg R1.7%
CGU11
CGC9
CGA43
CGG1
Gly G5.6%
GGU27
GGC52
GGA116
GGG17
Stop 0.2%
UAA4
UAG4
AGA1
AGG0

Genome map

37 annotated features in NC_068807.1

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 (38.1%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).
All 37 features as a table
FeatureTypeStartEndLengthStrandGC
tRNA-PheTransfer RNA80887568 bp+–
12S rRNARibosomal RNA8761,839964 bp+38.5%
tRNA-ValTransfer RNA1,8401,90667 bp+–
16S rRNARibosomal RNA1,9073,4931,587 bp+37.4%
tRNA-Leu (CUN)Transfer RNA3,4943,56875 bp+–
ND1Protein-coding gene3,5714,527957 bp+39.2%
tRNA-IleTransfer RNA4,5254,59470 bp+–
tRNA-GlnTransfer RNA4,5924,65968 bp−–
tRNA-MetTransfer RNA4,6624,73069 bp+–
ND2Protein-coding gene4,7315,7721,042 bp+35.7%
tRNA-TrpTransfer RNA5,7735,84169 bp+–
tRNA-AlaTransfer RNA5,8465,91469 bp−–
tRNA-AsnTransfer RNA5,9165,98873 bp−–
tRNA-CysTransfer RNA6,0216,08666 bp−–
tRNA-TyrTransfer RNA6,0876,15771 bp−–
COX1Protein-coding gene6,1597,7061,548 bp+39.9%
tRNA-Ser (UCN)Transfer RNA7,7047,77370 bp−–
tRNA-AspTransfer RNA7,7777,84670 bp+–
COX2Protein-coding gene7,8478,530684 bp+39.6%
tRNA-LysTransfer RNA8,5358,60066 bp+–
ATP8Protein-coding gene8,6028,808207 bp+37.2%
ATP6Protein-coding gene8,7639,443681 bp+40.8%
COX3Protein-coding gene9,44310,226784 bp+41.5%
tRNA-GlyTransfer RNA10,22810,29770 bp+–
ND3Protein-coding gene10,29810,643346 bp+39.0%
tRNA-ArgTransfer RNA10,64410,71067 bp+–
ND4LProtein-coding gene10,71311,009297 bp+36.4%
ND4Protein-coding gene11,00312,3771,375 bp+37.6%
tRNA-HisTransfer RNA12,37812,44568 bp+–
tRNA-Ser (AGY)Transfer RNA12,44712,50761 bp+–
tRNA-Leu (CUN)Transfer RNA12,51312,58270 bp+–
ND5Protein-coding gene12,58314,3881,806 bp+37.2%
ND6Protein-coding gene14,38514,909525 bp−38.9%
tRNA-GluTransfer RNA14,91014,98071 bp−–
CYTBProtein-coding gene14,98616,1251,140 bp+41.4%
tRNA-ThrTransfer RNA16,12716,19367 bp+–
tRNA-ProTransfer RNA16,19416,26067 bp−–

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