family · mtDNA statistics

Didelphidae

7 species in 5 genera. Every region of their mitochondrial genomes, side by side.

Group

species

34.7%

mean GC, whole genome

SD 1.8, range 33.2–38.6%

17,084

median genome length, bp

Range 15,882–17,265 bp

genera

Regions

GC content of each region across Didelphidae, % of A + C + G + T

Parameter

Chart

GC % of every region
Region
Whole genome	7	34.71%	1.83	0.053	33.18%Didelphis virginiana	34.38%	38.55%Gracilinanus agilis	0.26	0.58
Protein-coding	7	35.61%	2.15	0.060	33.78%Didelphis virginiana	34.47%	40.00%Gracilinanus agilis	0.27	0.55
All rRNA	7	36.42%	1.02	0.028	35.54%Lutreolina crassicaudata	36.20%	38.46%Gracilinanus agilis	0.44	0.32
All tRNA	7	33.19%	1.14	0.034	32.22%Didelphis virginiana	32.82%	35.57%Gracilinanus agilis	0.40	0.38
12S rRNA	7	37.72%	1.18	0.031	36.28%Didelphis virginiana	37.37%	39.72%Gracilinanus agilis	0.30	0.52
16S rRNA	7	35.64%	0.99	0.028	34.56%Lutreolina crassicaudata	35.50%	37.70%Gracilinanus agilis	0.52	0.23
D-loop	7	23.38%	4.84	0.207	13.38%Gracilinanus agilis	23.72%	28.48%Metachirus nudicaudatus	−0.66	0.11
ND1	7	36.13%	1.80	0.050	34.73%Didelphis aurita	35.63%	39.96%Gracilinanus agilis	0.34	0.45
ND2	7	34.35%	2.45	0.071	32.47%Didelphis virginiana	32.66%	38.70%Gracilinanus agilis	0.19	0.69
COX1	7	37.81%	1.83	0.048	36.58%Didelphis virginiana	36.71%	41.57%Gracilinanus agilis	0.31	0.5
COX2	7	35.90%	2.59	0.072	33.72%Didelphis aurita	34.60%	40.29%Gracilinanus agilis	0.50	0.25
ATP8	7	31.02%	1.49	0.048	29.52%Metachirus nudicaudatus	30.48%	32.86%Lutreolina crassicaudata	0.09	0.86
ATP6	7	34.45%	1.91	0.056	32.16%Didelphis virginiana	34.07%	37.89%Gracilinanus agilis	0.18	0.7
COX3	7	38.34%	2.14	0.056	36.61%Metachirus nudicaudatus	37.63%	42.86%Gracilinanus agilis	0.45	0.31
ND3	7	35.72%	2.76	0.077	32.66%Didelphis virginiana	35.26%	39.83%Monodelphis domestica	0.27	0.56
ND4L	7	33.09%	2.79	0.084	30.30%Didelphis aurita	31.65%	38.38%Gracilinanus agilis	0.67	0.1
ND4	7	34.16%	2.31	0.068	31.71%Didelphis virginiana	33.24%	38.82%Gracilinanus agilis	0.17	0.72
ND5	7	34.35%	2.72	0.079	31.56%Didelphis virginiana	33.17%	39.98%Gracilinanus agilis	0.22	0.64
ND6	7	32.09%	2.02	0.063	30.57%Didelphis virginiana	31.16%	35.73%Gracilinanus agilis	0.02	0.97
CYTB	7	38.63%	2.21	0.057	36.99%Didelphis virginiana	38.03%	43.26%Gracilinanus agilis	0.16	0.74

Genera of Didelphidae

GC content of the whole genome, % of A + C + G + T

Region

Parameter

Chart

Genera of Didelphidae

Didelphis	3	33.41%	0.20	0.006	33.18%Didelphis virginiana	33.46%	33.57%Didelphis marsupialis	–	–
Metachirus	1	34.38%	–	–	34.38%Metachirus nudicaudatus	34.38%	34.38%Metachirus nudicaudatus	–	–
Monodelphis	1	35.00%	–	–	35.00%Monodelphis domestica	35.00%	35.00%Monodelphis domestica	–	–
Lutreolina	1	34.85%	–	–	34.85%Lutreolina crassicaudata	34.85%	34.85%Lutreolina crassicaudata	–	–
Gracilinanus	1	38.55%	–	–	38.55%Gracilinanus agilis	38.55%	38.55%Gracilinanus agilis	–	–

Codon usage

Share of each codon in all 13 protein-coding genes, across Didelphidae

Gene

Loading codon usage…

Every species, region by region

Each region's page lists the value of every species, with the same statistics by class, order or family and a CSV download.

Whole genome Protein-coding All rRNA All tRNA 12S rRNA 16S rRNA D-loop ND1 ND2 COX1 COX2 ATP8 ATP6 COX3 ND3 ND4L ND4 ND5 ND6 CYTB

Didelphidae taxon page All data downloads

The charts

Each chart draws the rows of the table under it, in the table's order: sort a column to reorder the chart.Chart sets its axis.
Distribution: the range (line), mean ± SD (bar), median (tick) and mean (dot). Lengths of the regions are on a log scale.
Variation: the coefficient of variation, or the SD for the skews, which vary around zero.
Lifespan r: r with its 95% confidence interval (Fisher z). Lifespan map: r of every parameter in every region at once, bold where the Benjamini–Hochberg q-value over the map is below 0.05.

What the numbers are

Species: species with the region annotated. SD is the sample standard deviation, CV = SD / mean.
Base percentages are over A + C + G + T, so GC % + AT % = 100. Skews are on the L strand as deposited in RefSeq: GC skew = (G − C) / (G + C), AT skew = (A − T) / (A + T).
Min and Max name the species with the extreme value.

Lifespan columns

r is the Pearson correlation of the parameter with log₁₀ maximum lifespan within the group (5 or more species), and p its two-tailed p-value, as on the original MitoAge. They are not corrected for multiple testing or for shared ancestry: the plot shows Benjamini–Hochberg q-values and phylogenetic contrasts.

The original site labelled the base columns with their complements, so its skews have the opposite sign. Seemethods.