Table 1

Descriptors of the evolutionary dynamics of the 118 exons available for 12 mammals (human, chimp, macaque, mouse, rat, rabbit, cow, dog, elephant, tenrec, armadillo, and opossum).

DESCRIPTORS

MEAN

SE

MIN

MAX


Exon length

800

465

405

2883

Variability

35.7

10.0

15.7

60.6

% var 1st

19.5

6.2

5.9

34.4

% var 2nd

12.1

7.1

0

28.6

% var 3rd

68.4

12.8

42.0

93.4

α (Γ distribution)

0.4

0.2

0.1

1.3

%GC

52.8

7.5

39.5

69.4

%GC3

58.7

15.2

29.3

89.3

RCV (× 1000)

6.8

2.9

1.7

16.3

A-C

1.5

0.9

0.4

6.7

A-G

6.1

3.4

1.4

24.4

A-T

1.0

0.7

0.2

3.8

C-G

1.1

0.7

0.1

3.6

C-T

7.7

4.8

1.1

34.5

G-T

1.0

0

1.0

1.0

Ti/Tv

2.8

0.9

0.8

6.5

TBL

0.9

0.4

0.2

1.9

Relative rate (SDM)

1.0

0.4

0.2

2.6


Mean, standard-error (SE), minimum (MIN) and maximum (MAX) values are given for exon length, variability (% of variable sites on the complete alignment), relative variability (% var) among codon positions (% of the variable sites that respectively occurred on first [1st], second [2nd], and third [3rd] codon positions), substitution rate heterogeneity among sites (α), Guanosine + Cytosine content on all (GC) and third (GC3) codon positions, relative composition variability (RCV), relative GTR substitution rates (A-C to G-T), average transition/transversion rate ratio (Ti/Tv), total branch length (TBL) of the tree, and relative evolutionary rate (as measured by the SDM procedure).

Ranwez et al. BMC Evolutionary Biology 2007 7:241   doi:10.1186/1471-2148-7-241

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