Table 1

Tests for LINE-like and gypsy-like RTase sequences and mariner/Tc1-like transposase sequences in diverse species

PhylumSpeciesNo.*MarinerTc1LINEGypsy
Sarcomastigophora Giardia lamblial 1+S
Porifera Halichondria bowerbankia 2+++S
Spongilla sp.b 3+++S
Cnidaria (L,M) Hydra littoralisb 4+S+S+
Aurelia auritac 5++
Ctenophora Condylactus sp.a 6++
Platyhelminthes (M) Dugesia tigrinab 7+S+S+S
Rotifera (Acanthocephala) Moniliformis moniliformisk 8+S+
Rotifera (Monogononta) Brachionus plicatilisd 9++S+S
Brachionus calyciflorusd 10+
Sinantherina socialisk 11++S+
Monostyla sp.b 12+S
Rotifera (Bdelloidea) Philodina roseolab 13+
Philodina rapidah 14+
Habrotrocha constrictah 15+S
Adineta vagak 16+S
Macrotrachela quadricorniferah 17+S
Gastrotricha Lepidodermella sp.b 18+++S
Nemertea Lineus sp.c 19+++S+
Priapulida Priapulus caudatuse 20+S+
Sipuncula Themiste alutaceaa 21+S+
Annelida Glycera sp.e 22+S+
Echiura Lissomyema mellitaa 23++S+S
Mollusca (L) Chione cancellataa 24+S+S+
Brachiopoda Glottidea pyramidataa 25+S+
Bryozoa Amathia convolutaa 26+++S+S
Phoronida Phoronis architectaa 27+++
Nematoda (L,G,M,T) Caenorhabditis elegansl 28+++S+S
Onychophora Euperipatoides rowellif 29++S+S+S
Arthropoda (L,G,M,T) Drosophila melanogasterh 30++S+S
Drosophila pseudoobscurah 31++++S
Drosophila virilisr 32++++S
Lasius nigerr 33+S+
Formica polyctenumr 34++S
Aphis sp.r 35+S+
Tardigrada Milnesium sp.b 36+++
Chaetognatha Sagitta sp.c 37++S+
Echinodermata (G) Echinometra mathaeis 38++S
Strongylocentrotus purpuratuss 39++
Hemichordata Saccoglossus kowalevskiic 40++S+
Chordata (L,G,M,T) Branchiostoma floridaea 41+S+
Danio reriom 42++S
Onchorhynchus ketat 43++
Xenopus laeviso 44++
Mus musculusn 45++S
Bos taurust 46++
  • Superscript letters under species column refer to suppliers of specimens as indicated in Materials and Methods

  • * For reference to Fig. 2, each species is assigned a number. 

  • Superfamilies previously reported to be present in representatives of a phylum are indicated in parentheses: L, LINE; G, gypsy; M, mariner; T, Tc1. 

  • Presence or absence of diagnostic PCR bands is indicated by + or −, respectively; S, verified by sequencing; blank, not done.