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Table 3 Morphological character matrix used for cladistic analysis

From: Evolutionary diversification of secondary mechanoreceptor cells in tunicata

Species

Character state

 

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

Botryllus schlosseri

0

1

0

0

-

1

1

0

1

-

-

0

1

0

0

1

1

0

1

Botrylloides leachi

0

1

0

0

-

1

1

0

1

-

-

0

1

0

0

1

1

0

1

Styela plicata

0

1

1

0

0

1

1

0

0

-

-

0

1

1

0

1

1

0

1

Polyandrocarpa zorritensis

0

1

1

0

0

1

1

0

0

-

-

0

1

1

0

1

1

0

1

Molgula socialis

0

1

1

0

0

1

1

0

0

-

-

0

1

1

1

1

1

1

1

Pyura stolonifera

0

1

1

0

0

1

1

0

0

-

-

0

1

1

1

1

1

1

1

Clavelina lepadiformis

1

0

0

1

0

1

-

-

-

1

0

0

1

0

0

0

1

0

1

Diplosoma listerianum

1

0

0

1

0

1

-

-

-

0

0

0

1

0

0

0

1

0

1

Ciona intestinalis

1

0

0

1

0

1

-

-

-

1

0

0

0

0

0

1

1

0

1

Ascidiella aspersa

1

0

0

1

0

1

-

-

-

1

0

1

0

0

0

0

1

0

1

Phallusia mammillata

1

0

0

1

0

0

-

-

-

-

0

0

0

1

0

0

1

0

1

Chelyosoma productum

1

0

0

1

0

1

-

-

-

1

0

1

0

0

0

0

1

0

1

Corella inflata

1

0

0

1

0

0

-

-

-

-

0

1

0

0

0

0

1

0

1

Oikopleura dioica

1

0

0

1

1

0/1

-

-

-

1

1

0

1

0

0

0

0

-

 

Pyrosoma atlanticum

1

1

0

0

-

1

1

0

0

-

-

0

0

0

?

0

1

0

1

Doliolum nationalis

1

1

0

0

-

1

1

0

0

-

-

0

0

0

0

0

1

0

1

Branchiostoma floridae

1

1

0

0

-

1

0

0

0

-

-

0

0

0

-

1

1

0

0

Lethenteron camtschaticum

1

1

0

0

-

1

0

1

-

-

-

0

0

0

-

0

0

-

0

Eptatretus stoutii

1

1

0

0

-

1

1

0

-

-

-

0

0

0

-

?

0

-

0

Danio rerio

1

1

0

0

-

1

0

1

-

-

-

0

0

0

-

?

0

-

0

  1. Matrix based on 19 characters derived from detailed ultrastructural studies of secondary sensory cells in different 20 species. For all the characters, “0” denotes absence and “1” presence (see Table 2 for character description); “-” was used when the character definition was not applicable to the species, “?” when the character state is not known. See Table 1 for references.