family · mtDNA statistics

Ursidae

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

Group

species

40.9%

mean GC, whole genome

SD 0.9, range 38.8–41.7%

16,811

median genome length, bp

Range 16,766–17,020 bp

genera

Regions

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

Parameter

Chart

GC % of every region
Region
Whole genome	8	40.88%	0.91	0.022	38.79%Ailuropoda melanoleuca	41.13%	41.71%Melursus ursinus	0.16	0.71
Protein-coding	8	41.06%	1.21	0.029	38.25%Ailuropoda melanoleuca	41.26%	42.28%Melursus ursinus	−0.02	0.96
All rRNA	8	40.22%	0.59	0.015	38.87%Ailuropoda melanoleuca	40.31%	40.83%Melursus ursinus	0.07	0.86
All tRNA	8	36.30%	0.53	0.015	35.66%Tremarctos ornatus	36.20%	37.11%Ailuropoda melanoleuca	−0.45	0.26
12S rRNA	8	41.96%	0.86	0.020	40.17%Ailuropoda melanoleuca	42.12%	42.97%Tremarctos ornatus	0.01	0.97
16S rRNA	8	39.16%	0.65	0.017	38.08%Ailuropoda melanoleuca	39.28%	39.81%Melursus ursinus	0.10	0.82
D-loop	1	44.83%	–	–	44.83%Ailuropoda melanoleuca	44.83%	44.83%Ailuropoda melanoleuca	–	–
ND1	8	42.16%	1.65	0.039	38.70%Ailuropoda melanoleuca	42.47%	43.98%Melursus ursinus	−0.27	0.52
ND2	8	38.52%	1.54	0.040	34.74%Ailuropoda melanoleuca	38.97%	39.35%Tremarctos ornatus	0.20	0.64
COX1	8	42.37%	0.78	0.018	40.97%Ailuropoda melanoleuca	42.52%	43.24%Melursus ursinus	0.24	0.56
COX2	8	40.02%	1.76	0.044	36.40%Ailuropoda melanoleuca	40.35%	42.40%Melursus ursinus	−0.10	0.82
ATP8	8	35.05%	1.87	0.053	32.35%Ailuropoda melanoleuca	35.06%	37.75%Melursus ursinus	−0.32	0.45
ATP6	8	41.01%	2.02	0.049	36.56%Ailuropoda melanoleuca	41.56%	43.03%Melursus ursinus	−0.15	0.73
COX3	8	43.32%	1.59	0.037	40.43%Ailuropoda melanoleuca	43.30%	46.30%Melursus ursinus	−0.31	0.45
ND3	8	41.58%	1.98	0.048	36.89%Ailuropoda melanoleuca	42.20%	42.94%Melursus ursinus	0.00	1
ND4L	8	39.60%	1.26	0.032	38.38%Ailuropoda melanoleuca	39.06%	41.08%Melursus ursinus	−0.12	0.78
ND4	8	41.20%	1.53	0.037	37.59%Ailuropoda melanoleuca	41.55%	42.31%Melursus ursinus	−0.06	0.89
ND5	8	39.69%	1.05	0.027	38.28%Ursus americanus	39.67%	41.79%Tremarctos ornatus	0.39	0.34
ND6	8	37.97%	1.36	0.036	35.98%Ursus arctos	38.07%	39.35%Tremarctos ornatus	−0.68	0.06
CYTB	8	43.98%	1.86	0.042	39.65%Ailuropoda melanoleuca	44.30%	45.96%Ursus thibetanus	0.11	0.8

Genera of Ursidae

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

Region

Parameter

Chart

Genera of Ursidae

Ursus	4	41.05%	0.35	0.009	40.60%Ursus americanus	41.13%	41.36%Ursus maritimus	–	–
Ailuropoda	1	38.79%	–	–	38.79%Ailuropoda melanoleuca	38.79%	38.79%Ailuropoda melanoleuca	–	–
Helarctos	1	40.95%	–	–	40.95%Helarctos malayanus	40.95%	40.95%Helarctos malayanus	–	–
Melursus	1	41.71%	–	–	41.71%Melursus ursinus	41.71%	41.71%Melursus ursinus	–	–
Tremarctos	1	41.36%	–	–	41.36%Tremarctos ornatus	41.36%	41.36%Tremarctos ornatus	–	–

Codon usage

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

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

Ursidae 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.