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Table 2 Number of Sycon and Amphimedon members of the different bHLH families

From: Conservation and divergence of bHLH genes in the calcisponge Sycon ciliatum

Family name

High-order group

Sycon ciliatum

Amphimedon queenslandica

Achaete-Scute a

A

0

2?

Achaete-Scute b

A

  

MyoD

A

0

0

E12/E47

A

2

1

Neurogenin

A

1

1

NeuroD

A

Atonal

A

Mist

A

Amber

A

Beta3

A

Oligo

A

Net

A

Delilah

A

Mesp

A

0

0

Twist

A

0

0

Paraxis

A

0

0

MyoRa

A

0

0

MyoRb

A

1

0

Hand

A

1

0

PTFa

A

0

0

PTFb

A

0

0

SCL

A

2

0

NSCL

A

4

0

Myc

B

1

2

Mad

B

0

1

Mnt

B

0

0

Max

B

0

1

USF

B

1

1

MITF

B

2

1

SREBP

B

1

1

AP4

B

0

1

MLX

B

1

1

TF4

B

1

1

Clock

C

0

0

ARNT

C

1

1

Bmal

C

AHR

C

0

1

Sim

C

0

1

Trh

C

HIF

C

SRC

C

0

0

Emc

D

0

0

Hey

E

1

1

Hairy/E(spl)

E

0

1

Coe

F

0

1

Orphans

–

10a

1–3

Total number

 

30

21

  1. aAmong which 7 belong to the Twist-related superfamily