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Table 1 Plastid genome features compared between non-photosynthetic plastids and photosynthetic relatives

From: The complete plastid genome sequence of the parasitic green alga Helicosporidium sp. is highly reduced and structured

  Size (kb) % non-coding DNA (including introns) Mean intergenic distance (bp) No. of genes (proteins & rRNAs) No. of tRNAs Large repeat Accession No.
Trebouxiophytes
Helicosporidium sp. 37.5 5.1 36 29 25 0 [DQ398104]
Prototheca wickerhammii *54.1 21.4 121 - - - [AJ245645, AJ236874]
Chlorella vulgaris 150.6 36.0 302 176 33 0 [NC001865]
Angiosperms
Epifagus virginiana 70.0 42.1 135 32 21 2 inverted [NC001568]
Nicotiana tabacum 155.9 42.5 299 109 37 2 inverted [NC001879]
Euglenids
Euglena longa 73.3 32.0 135 56 28 3 tandem [NC002652]
Euglena gracilis 143.2 50.9 118 88 40 3 tandem [NC001603]
Containing secondarily acquired red algal plastids
Plasmodium falciparum 34.7 4.7 24 34 34 2 inverted [X95275, X95276]
Toxoplasma gondii 35.0 5.9 28 32 33 2 inverted [NC001799]
Eimeria tenella 34.8 4.9 26 32 33 2 inverted [NC004823]
Theileria parva 39.6 16.7 95 46 25 0 [AAGK01000009]
Odontella sinensis 119.7 15.6 107 146 29 2 inverted [NC001713]
  1. * the Prototheca genome is unfinished and its size is estimated from a restriction map [17], while the percentage non-coding DNA and mean intergenic distance were calculated from available sequences, constituting about half the genome.