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Table 2 Major clades in the SMXL family

From: Strigolactone synthesis is ancestral in land plants, but canonical strigolactone signalling is a flowering plant innovation

Clade

Taxon

Sub-taxon

Sequences

Major sub-clades

SMXLA

Liverworts

 

5

 

SMXLB

Mosses

 

19

SMXLB

Bryopsida

10

SMXLC

SMXLD

Hornworts

 

6

 

SMXL

Lycophytes

Lycopodiales

6

SMXLE

Isoetales

2

SMXLF

Selaginellales

7

SMXLG

Selaginellales

6

SMXLH

SMXLJ

Monilophytes

 

17

 

SMXL4

 gSMXL4

Gymnosperms

 

5

 

 aSMXL4

Angiosperms

 

25

 

 SMXL39

Angiosperms

 

8

SMXL39

Core eudicots

16

SMXL3

Core eudicots

13

SMXL9

SMAX1

 gSMAX1

Gymnosperms

 

14

 

 aSMAX1

Angiosperms

 

31

 

 SMXL78

Angiosperms

 

7

SMXL78

Core eudicots

16

SMXL7

Core eudicots

13

SMXL8

  1. Table showing major clades in the SMXL family, as defined at the level of major taxonomic groups. Almost all sequences in the family unambiguously group into one of these clades. Within some clades, there are major sub-clades where the lineage has been duplicated; these are listed at the right. Our analysis suggests that seed plant SMXL proteins group into two super-clades, SMAX1 and SMXL4, as indicated on the left of the table