Table 3

Mitochondrial Shallow Level Contrasts

Response Variable

Predictor Variable

Coefficient

R2

d.f.

P value


ln(Clade Size)

ln(dN)

0.2991

0.0051

25

0.722

ln(Clade Size)

ln(T)

-0.5455

0.0069

25

0.683

ln(Clade Size)

ln(dS)#

-1.0500

0.1087

23

0.107

ln(Clade Size)

ln(ω) #

-0.0035

0.0010

23

0.88

ln(Clade Size)

ln(Body Size)

0.1566

0.0278

24

0.416

ln(dN)

ln(Body Size)

0.0006

6 × 10-6

24

0.990

ln(T)

ln(Body Size)

-0.0444

0.0960

24

0.123

ln(dS)#

ln(Body Size)

0.0280

0.0074

23

0.683

ln(ω)#

ln(Body Size)

-1.1831

0.0159

23

0.553


Tables 1, 2 and 3 - Regressions between rates, clade size and body size for mitochondrial sequence data

Traits are measured as differences in values between sister-pairs of mammalian clades. Co-efficient: estimated co-efficient of the predictor variable; R2 = co-efficient of determination; d.f: degrees of freedom in model. Synonymous substitution rates and dN/dS ratios (ω) estimated in PAML indicated with #; all other rates were estimated in HyPhy. P value: significance of value of model; Significance: * = P < 0.05, ** = P < 0.005.

Goldie et al. BMC Evolutionary Biology 2011 11:286   doi:10.1186/1471-2148-11-286

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