order · mtDNA statistics

Squaliformes

3 species in 2 families. Every region of their mitochondrial genomes, side by side.

Group

species

39.0%

mean GC, whole genome

SD 0.2, range 38.8–39.3%

16,738

median genome length, bp

Range 16,730–16,757 bp

families

Regions

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

Parameter

Chart

GC % of every region
Region
Whole genome	3	39.05%	0.25	0.006	38.78%Squalus acanthias	39.11%	39.26%Somniosus microcephalus	–	–
Protein-coding	3	39.56%	0.20	0.005	39.33%Squalus acanthias	39.66%	39.69%Somniosus microcephalus	–	–
All rRNA	3	39.39%	0.36	0.009	39.02%Squalus acanthias	39.41%	39.74%Squalus blainville	–	–
All tRNA	3	38.45%	0.13	0.003	38.35%Squalus blainville	38.39%	38.60%Somniosus microcephalus	–	–
12S rRNA	3	42.97%	0.58	0.013	42.59%Squalus acanthias	42.69%	43.64%Somniosus microcephalus	–	–
16S rRNA	3	37.31%	0.54	0.014	36.99%Squalus acanthias	37.01%	37.94%Squalus blainville	–	–
D-loop	3	33.62%	1.01	0.030	32.78%Squalus acanthias	33.33%	34.74%Somniosus microcephalus	–	–
ND1	3	40.34%	0.46	0.011	39.90%Somniosus microcephalus	40.31%	40.82%Squalus blainville	–	–
ND2	3	40.90%	0.65	0.016	40.44%Somniosus microcephalus	40.63%	41.64%Squalus blainville	–	–
COX1	3	40.66%	0.11	0.003	40.59%Squalus acanthias	40.59%	40.78%Squalus blainville	–	–
COX2	3	38.64%	0.29	0.007	38.35%Squalus acanthias	38.64%	38.93%Squalus blainville	–	–
ATP8	3	32.14%	1.57	0.049	30.95%Squalus blainville	31.55%	33.93%Somniosus microcephalus	–	–
ATP6	3	36.08%	1.50	0.041	34.94%Squalus acanthias	35.53%	37.77%Somniosus microcephalus	–	–
COX3	3	41.14%	1.96	0.048	39.82%Squalus acanthias	40.20%	43.38%Somniosus microcephalus	–	–
ND3	3	41.01%	0.86	0.021	40.17%Squalus blainville	40.97%	41.88%Squalus acanthias	–	–
ND4L	3	40.74%	0.67	0.017	40.07%Squalus acanthias	40.74%	41.41%Somniosus microcephalus	–	–
ND4	3	38.18%	0.84	0.022	37.22%Somniosus microcephalus	38.60%	38.74%Squalus acanthias	–	–
ND5	3	38.63%	0.27	0.007	38.35%Somniosus microcephalus	38.63%	38.90%Squalus acanthias	–	–
ND6	3	39.02%	1.12	0.029	37.74%Squalus acanthias	39.46%	39.85%Somniosus microcephalus	–	–
CYTB	3	41.22%	0.64	0.016	40.49%Squalus acanthias	41.45%	41.71%Somniosus microcephalus	–	–

Families of Squaliformes

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

Region

Parameter

Chart

Families of Squaliformes

Squalidae	2	38.94%	0.23	0.006	38.78%Squalus acanthias	38.94%	39.11%Squalus blainville	–	–
Somniosidae	1	39.26%	–	–	39.26%Somniosus microcephalus	39.26%	39.26%Somniosus microcephalus	–	–

Codon usage

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

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

Squaliformes 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.