Table 1.

Ribosomal protein-sequences and species included

Ribosomal protein	Length in alignment	# of variable sites	Occurrence*	Clade	Species	Common name	Occurrence***
RpL32	134	110	31	Nematoda	Caenorhabditis elegans	Roundworm	47
RpL11	133	71	29	Tardigrada	Hypsibius dujardini	Water bear	38
RpL13A	146	108	29	Collembola	Folsomia candida	Springtail	48
RpS8	34	15	29		Orchesella cincta	Springtail	7
RpS5	150	68	28	Insecta	Apis mellifera	Honeybee	48
RpS6	98	58	28		Drosophila melanogaster	Fruit fly	48
RpS7	168	128	28		Locusta migratoria	Migratory locust	47
RpL21	164	120	27		Acyrthosiphon pisum	Pea aphid	45
RpL24	52	40	27		Tribolium castaneum	Red flour beetle	44
RpS15	141	85	27		Plutella xylostella	Diamondback moth	44
RpS18	116	56	27		Toxoptera citricida	Brown citrus aphid	40
RpS23	140	64	27		Manduca sexta	Tobacco hornworm	38
RpL12	150	81	25		Culicoides sonorensis	Mosquito	36
RpL13	39	32	25		Glossina morsitans	Tsetse fly	35
RpL31	108	87	25		Ctenocephalides felis	Cat flea	34
RpS11	151	104	25		Homalodisca coagulata	Glassy-winged sharpshooter	32
RpS12	106	83	25
RpS16	137	73	25		Pediculus humanus	Human head/body louse	22
RpS9	130	49	25
RpL15	169	117	24		Diaprepes abbreviatus	Root weevil	21
RpS14	152	58	24		Tricholepisma aurea	Silverfish	18
RpS19	130	107	24		Ips pini	Pine engraver	16
RpL34	93	73	23		Anopheles funestus	African malaria mosquito	11
RpL37A	87	43	23
RpLp0	36	32	23	Crustacea	Daphnia magna	Water flea	44
RpS26	103	45	23		Litopenaeus vannamei	Pacific white shrimp	44
RpL10A	42	36	22
RpL23	139	51	22		Penaeus monodon	Black tiger shrimp	43
RpL36A	105	44	22		Litopenaeus setiferus	Northern white shrimp	36
RpL39	51	26	22
RpS17	112	70	22		Homarus americanus	Atlantic lobster	30
RpS27	80	42	22		Marsupenaeus japonicus	Kuruma shrimp	25
RpS30	89	72	22		Artemia franciscana	Brine shrimp	14
RpL36	87	64	21		Callinectes sapidus	Blue crab	13
RpL35	127	68	20		Eurydice pulchra **	Speckled sea louse	4
RpL35A	78	58	20	Chelicerata	Amblyomma americanum	Lone star tick	32
RpL37	80	43	20		Boophilus microplus	Southern cattle tick	29
RpL3	50	28	20		Rhipicephalus appendiculatus	Brown ear tick	21
RPL40****	128	22	20
RpS29	56	30	20		Ornithodoros porcinus	Tick	19
RpS15A	80	33	19		Sarcoptes scabiei	Scabies mite	13
RpL38	70	37	17		Amblyomma variegatum **	Tick	2
RpS21	86	49	17
RpS28	66	18	17
RpL27	137	84	14
RpLp2	83	59	12
RpS27A****	152	27	12
RpL22	69	23	9

Left: The inferred ribosomal protein sequences (amino acids) that were included in the concatenated dataset. Only ribosomal proteins present in the Folsomia candida EST dataset were included in the analysis. Occurrence*: The number of species for which was data available for a certain ribosomal protein. # of variable sites: positions that constitute more than one amino acid in the different alignments. Numbers were calculated in MEGA4 [61].

Right: All species that were included in the analyses. Species marked with ** were excluded from the final analyses because they contained too few sequences. Occurrence***: The number of genes (out of 48) that were available for a specific taxon. ****: RpS27a and RpL40 are fused to ubiquitin [25].