Table 1

Experimental design and types of biological samples used in microarray experiments.

Pairwise comparison

Dwarf whitefish experimental groups and properties of samples

Normal whitefish experimental groups and properties of samples

1 Embryo

18 segments, tail curved up to 30°

DD-E

20 segments, tail curved up to 30°

NN-C

2 Embryo

23–25 segments, tail curved up to 30°.

20 segments, tail curved up to 30°

3 Embryo

18 segments, tail curved up to 30°

20 segments, tail curved up to 30°

4 Embryo

18 segments, tail curved up to 30°

20 segments, tail curved up to 30°

5 Embryo

15–20 segments in detached tail.

DD-G

tail partially segmented, curved up to 30°.

NN-I

6 Embryo

15–20 segments in detached tail

tail partially segmented, curved up to 30°.

7 Embryo

15–20 segments in detached tail.

tail partially segmented, curved up to 30°.

8 Embryo

10–20 segments in detached tail.

tail partially segmented, curved up to 30°

9 Juvenile

1.04 g

DD-E

1.06 g

NN-C

10 Juvenile

0.96 g

0.63 g

11 Juvenile

0.96 g

0.89 g

12 Juvenile

0.84 g

1.19 g

13 Juvenile

0.99 g

DD-G

1.03 g

NN-I

14 Juvenile

0.54 g

0.85 g

15 Juvenile

0.91 g

0.78 g

16 Juvenile

0.80 g

0.87 g

Analysis of gene expression was performed pair wise for a set of embryo experiments (1–8) using pools of 5 eggs while single juveniles were used in experiments 9–16. Staging of embryos and juveniles is assessed by key developmental parameters as described in the text. For embryos the number of somites in the part of the tail that is detached from the yolk as well the observed tail curvature is given. The number of somites is an approximation as it was determined in vivo. For juvenile fishes we provide the total body weight in gram.

Nolte et al. BMC Evolutionary Biology 2009 9:59   doi:10.1186/1471-2148-9-59