Skip to main content

Table 3 Mean comparison (independent t test, two-tailed) between living fossil (LF) and radiated species (R), for each category of DNA repair genes and altogether (degrees of freedom, 42)

From: Evidence that DNA repair genes, a family of tumor suppressor genes, are associated with evolution rate and size of genomes

DNA repair gene category

Species group

Mean number

Std. dev.

[95% conf. interval]

t value

p value

Base excision repair (BER)

20 (LF)

16.75

3.274704

15.21739, 18.28261

− 2.7067

9.80 × 10 −3

24 (R)

18.92

1.976309

18.08214, 19.75119

  

Conserved DNA damage response

20 (LF)

15.2

2.876401

13.8538, 16.5462

− 2.2001

3.34 × 10−2

24 (R)

16.83

2.03591

15.97364, 17.69302

  

Direct reversal of damage

20 (LF)

2.9

0.3077935

2.755948, 3.044052

− 0.1872

0.8524

24 (R)

2.92

0.2823299

2.797449, 3.035884

  

DNA polymerases

20 (LF)

14.3

1.688974

13.50954, 15.09046

− 2.4279

1.96 × 10−2

24 (R)

15.38

1.244553

14.84947, 15.90053

  

Editing and processing nucleases

20 (LF)

6.5

1.100239

5.985072, 7.014928

− 2.4341

1.93 × 10−2

24 (R)

7.25

0.9440892

6.851346, 7.648654

  

Fanconi anemia

20 (LF)

13.55

0.9445132

13.10795, 13.99205

− 2.2591

2.91 × 10−2

24 (R)

14.21

0.9770927

13.79574, 14.62092

  

Homologous recombination

20 (LF)

21.2

2.261811

20.14144, 22.25856

− 1.6880

9.88 × 10−2

24 (R)

22.33

2.180281

21.41268, 23.25399

  

Mismatch excision repair (MMR)

20 (LF)

8.35

0.8127277

7.969632, 8.730368

− 1.7706

8.39 × 10−2

24 (R)

8.79

0.8329709

8.439934, 9.143399

  

Non-homologous end-joining

20 (LF)

6.55

0.6863327

6.228786, 6.871214

− 0.8497

0.4003

24 (R)

6.71

0.5500329

6.476075, 6.940592

  

Nucleotide excision repair (NER)

20 (LF)

25.15

3.528456

23.49863, 26.80137

− 3.8043

5.00 × 10 −4

24 (R)

28.46

2.186503

27.53505, 29.38161

  

All DNA repair genes

20 (LF)

130.45

14.56916

123.6314, 137.2686

−2.9417

5.30 × 10 −3

24 (R)

141.79

10.99003

137.151, 146.4324

 Â