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Table 1 Organisms surveyed for the presence of the Rpl7a intron

From: An ancient spliceosomal intron in the ribosomal protein L7a gene (Rpl7a) of Giardia lamblia

Organism1

Number2

Intron Size (nt)

With intron:

  

Opisthokonta (Metazoa only)

  

Vertebrata

(7)

 

   Homo sapiens†

 

277

Chordata

(2)

 

   Ciona intestinalis†

 

586

Hexapoda

(5)

 

   Drosophila melanogaster†

 

401

Amoebozoa

  

   Dictyostelium discoideum†

 

492

   Physarum polycephalum*†

 

103

   Acanthamoeba castellanii*†

 

82

   Hartmannella vermiformis*†

 

58

Excavata

  

Jakobidae

  

   Jakoba libera*†

 

541

   Reclinomonas americana*†

 

877

   Seculamonas ecuadoriensis*†

 

988

Trimastix (Trimastix pyriformis*†)

 

172

Malawimonadidae

  

   Malawimonas jakobiformis*†

 

53, 553

   Malawimonas californianus*†

 

54

Diplomonadida (Giardia lamblia)

 

109

Without intron:

  

Chromalveolata

  

Alveolata

(14)

 

Heterokonta (stramenopiles)

(3)

 

Plantae

  

Streptophyta

(5)

 

Rhodophyta

(2)

 

Chlorophyta

(1)

 

Rhizaria

  

Cercozoa (Bigelowiella natans*)

(1)

 

Opisthokonta

  

Fungi

(28)

 

Nematoda/Trematoda

(4)

 

Hexapoda

(1)

 

Capsaspora owczarzaki*

  

Amoebozoa

  

Entamoebidae

(4)

 

Excavata

  

Heterolobosea (Naegleria gruberi*)

  

Euglenozoa

  

   Trypanosomatidae

(7)

 

   Euglenida (Euglena gracilis*)

  

Parabasalia (Trichomonas vaginalis)

  

Diplomonadida (Spironucleus barkhanus*)

  
  1. 1An asterisk (*) denotes organisms for which PCR amplification of the Rpl7a gene was performed; † indicates that expressed sequence tag (EST) data exist that confirm the absence of the intron in the corresponding mRNA.
  2. 2Numbers in brackets refer to the number of organisms examined within each group; a complete list is provided in Additional File 3.
  3. 3Two versions of the Rpl7a gene exist in this organism, containing introns of slightly different length.