Table 1.

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

Phylum	Species	No.*	Mariner	Tc1	LINE‡	Gypsy‡
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.