Table 1 Number of snail, scratchA, and scratchB genes found in the different studied species

Acropora millepora

1

-

-

1

Aedes aegypti

1

-

-

1

Anolis carolinensis

2

-

-

2

Anopheles gambiae

1

1

2

4

Apis mellifera

1

1

2

4

Branchiostoma floridae

1

1

1

3

Caenorhabditis elegans

1

-

1

2

Capitella spI

2

1

3

6

Ciona intestinalis

1

-

-

1

Cupiennius salei

1

-

-

1

Danio rerio

4

-

3

7

Daphnia pulex

1

1

2

4

Drosophila melanogaster

3

1

2

6

Drosophila pseudoobscura

3

1

2

6

Halocynthia roretzi

1

-

-

1

Homo sapiens

4

-

2

6

Lottia gigantea

2

1

1

4

Lytechinus variegatus

1

-

-

1

Mus musculus

3

-

2

5

Nasonia vitripennis

1

1

1

3

Nematostella vectensis

2

-

1

3

Patella vulgata

2

-

-

2

Platynereis dumerilii

2

-

-

2

Saccoglossus kowalevskii

1

-

1

2

Strongylocentrotus purpuratus

1

1

1

3

Tribolium castaneum

1

1

2

4

Trichoplax adhaerens

1

-

1

2

Xenopus laevis

3

-

-

3