class · mtDNA statistics

Cephalaspidomorphi

Lampreys: 10 species in 1 order. Every region of their mitochondrial genomes, side by side.

Group

species

37.9%

mean GC, whole genome

SD 0.6, range 37.1–38.6%

16,185

median genome length, bp

Range 16,150–16,461 bp

order

Regions

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

Parameter

Chart

GC % of every region
Region
Whole genome	10	37.87%	0.58	0.015	37.05%Ichthyomyzon unicuspis	37.86%	38.63%Lethenteron appendix	0.00	1
Protein-coding	10	37.51%	0.61	0.016	36.71%Petromyzon marinus	37.61%	38.25%Lampetra fluviatilis	−0.01	0.98
All rRNA	10	40.52%	0.69	0.017	39.27%Ichthyomyzon fossor	40.73%	41.33%Lethenteron appendix	−0.12	0.74
All tRNA	10	39.03%	0.84	0.022	37.49%Ichthyomyzon unicuspis	39.26%	39.76%Lethenteron reissneri	−0.06	0.86
12S rRNA	10	44.84%	0.73	0.016	43.50%Ichthyomyzon fossor	45.04%	45.63%Lampetra fluviatilis	−0.02	0.95
16S rRNA	10	38.13%	0.66	0.017	36.94%Ichthyomyzon fossor	38.34%	38.92%Lethenteron appendix	−0.18	0.62
D-loop	8	33.93%	3.94	0.116	29.85%Lethenteron camtschaticum	33.52%	42.57%Petromyzon marinus	0.41	0.32
ND1	10	37.07%	0.88	0.024	36.02%Ichthyomyzon fossor	36.70%	38.61%Lampetra fluviatilis	0.28	0.43
ND2	10	35.97%	1.59	0.044	33.69%Ichthyomyzon unicuspis	35.95%	37.72%Entosphenus minimus	−0.19	0.59
COX1	10	39.34%	0.56	0.014	38.67%Petromyzon marinus	39.25%	40.15%Lampetra fluviatilis	−0.05	0.88
COX2	10	38.00%	0.81	0.021	37.10%Lampetra aepyptera	37.99%	39.62%Lethenteron camtschaticum	−0.21	0.57
ATP8	10	36.79%	0.78	0.021	35.12%Petromyzon marinus	36.90%	37.50%Ichthyomyzon unicuspis	0.05	0.89
ATP6	10	35.69%	1.05	0.029	34.17%Ichthyomyzon unicuspis	35.90%	37.11%Lethenteron camtschaticum	−0.30	0.4
COX3	10	42.20%	0.54	0.013	41.60%Petromyzon marinus	42.11%	43.38%Lethenteron appendix	−0.11	0.77
ND3	10	39.93%	1.55	0.039	38.18%Lethenteron reissneri	39.23%	42.17%Lampetra aepyptera	−0.14	0.71
ND4L	10	39.45%	1.35	0.034	37.11%Lethenteron reissneri	39.86%	41.24%Ichthyomyzon unicuspis	0.04	0.92
ND4	10	35.75%	0.86	0.024	34.71%Entosphenus minimus	35.84%	37.18%Lampetra fluviatilis	0.36	0.31
ND5	10	36.27%	1.09	0.030	34.34%Petromyzon marinus	36.64%	37.84%Lampetra fluviatilis	−0.11	0.76
ND6	10	38.73%	0.98	0.025	37.17%Lethenteron reissneri	38.54%	40.27%Ichthyomyzon unicuspis	0.12	0.74
CYTB	10	37.24%	0.92	0.025	35.35%Petromyzon marinus	37.24%	38.79%Lampetra aepyptera	0.10	0.78

Orders of Cephalaspidomorphi

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

Region

Parameter

Chart

Orders of Cephalaspidomorphi

Petromyzontiformes	10	37.87%	0.58	0.015	37.05%Ichthyomyzon unicuspis	37.86%	38.63%Lethenteron appendix	0.00	1

Codon usage

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

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

Cephalaspidomorphi 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.