Table 1 List of imprinted genes by species

Cow

20

12

8

–

Sheep

16

6

8

2 (1× isoform dependent, 1× unknown)

Dog

1

–

1

–

Pig

22

14

6

2 (1× tissue dependent, 1× biallelic)

Rabbit

1

1

–

–

Chicken

–

–

–

–

Opossum

2

1

1

–

Lab Opossum

6

2

4

–

Human

97

61

29

7 (4× isoform dependent, 2× random, 1× unknown)

Mouse

124

50

62

12 (5× isoform dependent, 7× unknown)

Rat

6

3

3

–

Wallaby

5

4

1

–