family · mtDNA statistics

Emydidae

4 species in 4 genera. Every region of their mitochondrial genomes, side by side.

Group

species

38.8%

mean GC, whole genome

SD 0.1, range 38.7–39.0%

16,838

median genome length, bp

Range 16,738–16,901 bp

genera

Regions

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

Parameter

Chart

GC % of every region
Region
Whole genome	4	38.84%	0.11	0.003	38.73%Trachemys scripta	38.82%	38.97%Terrapene carolina	–	–
Protein-coding	4	39.49%	0.27	0.007	39.15%Trachemys scripta	39.54%	39.73%Terrapene carolina	–	–
All rRNA	4	39.41%	0.18	0.005	39.24%Terrapene carolina	39.38%	39.63%Trachemys scripta	–	–
All tRNA	4	37.99%	0.33	0.009	37.66%Chrysemys picta	37.94%	38.41%Pseudemys concinna	–	–
12S rRNA	4	41.21%	0.39	0.010	40.97%Chrysemys picta	41.03%	41.80%Trachemys scripta	–	–
16S rRNA	4	38.33%	0.20	0.005	38.15%Terrapene carolina	38.28%	38.60%Chrysemys picta	–	–
D-loop	4	31.41%	2.07	0.066	28.58%Chrysemys picta	31.84%	33.39%Trachemys scripta	–	–
ND1	4	38.83%	0.83	0.021	37.90%Pseudemys concinna	38.83%	39.75%Terrapene carolina	–	–
ND2	4	37.42%	0.49	0.013	36.96%Trachemys scripta	37.30%	38.11%Chrysemys picta	–	–
COX1	4	40.96%	0.24	0.006	40.70%Pseudemys concinna	40.96%	41.23%Trachemys scripta	–	–
COX2	4	37.66%	0.71	0.019	37.26%Trachemys scripta	37.34%	38.72%Chrysemys picta	–	–
ATP8	4	33.65%	1.10	0.033	32.80%Trachemys scripta	33.33%	35.12%Pseudemys concinna	–	–
ATP6	4	39.14%	1.18	0.030	38.16%Trachemys scripta	38.82%	40.79%Chrysemys picta	–	–
COX3	4	42.16%	0.42	0.010	41.84%Chrysemys picta	42.03%	42.73%Terrapene carolina	–	–
ND3	4	40.54%	1.66	0.041	38.97%Chrysemys picta	40.26%	42.69%Terrapene carolina	–	–
ND4L	4	39.39%	1.29	0.033	37.71%Chrysemys picta	39.73%	40.40%Trachemys scripta	–	–
ND4	4	38.61%	0.53	0.014	38.23%Terrapene carolina	38.41%	39.39%Chrysemys picta	–	–
ND5	4	38.70%	0.54	0.014	38.10%Trachemys scripta	38.65%	39.40%Pseudemys concinna	–	–
ND6	4	40.52%	1.07	0.026	39.43%Trachemys scripta	40.38%	41.90%Terrapene carolina	–	–
CYTB	4	41.67%	0.77	0.019	40.70%Trachemys scripta	41.71%	42.54%Terrapene carolina	–	–

Genera of Emydidae

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

Region

Parameter

Chart

Genera of Emydidae

Chrysemys	1	38.78%	–	–	38.78%Chrysemys picta	38.78%	38.78%Chrysemys picta	–	–
Trachemys	1	38.73%	–	–	38.73%Trachemys scripta	38.73%	38.73%Trachemys scripta	–	–
Terrapene	1	38.97%	–	–	38.97%Terrapene carolina	38.97%	38.97%Terrapene carolina	–	–
Pseudemys	1	38.86%	–	–	38.86%Pseudemys concinna	38.86%	38.86%Pseudemys concinna	–	–

Codon usage

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

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

Emydidae 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.