TABLE 1.

Summary of ciliate single-cell transcriptomes included in the present work, focusing on diverse species from ten classes of ciliates^a

Focal clade	Class	No. of genera	No. of species	WTA	Species
Karyorelictea	Karyorelictea	7	11	14	Cryptopharynx sp., Geleia acuta, Geleia sinica, Geleia sp., Kentrophoros sp., Loxodes sp. 1, Loxodes sp. 2, Loxodes striatus, Remanella sp., Trachelocercidae sp. 1, Trachelocercidae sp. 2
Heterotrichea	Heterotrichea	5	6	8	Anigsteinia sp., Blepharisma americanum, Climacostomum sp., Spirostomum ambiguum, Spirostomum minus, Stentor roeselii
Extensive fragmenters	Armophorea	2	2	2	Brachonella spiralis, Metopus sp.
	Phyllopharyngea	1	1	2	Chilodonella uncinata
Non-extensive fragmenters	Colpodea	1	1	2	Bursaria truncatella
	Litostomatea	4	4	6	Didinium nasutum, Rimaleptus mucronatus, Litonotus sp., Spathidium sp.
	Nassophorea	1	1	2	Zosterodasys sp.
	Oligohymenophorea	3	3	3	Frontonia sp., Lembadion sp., Vorticella sp.
	Plagiopylea	2	2	2	Parasonderia sp., Sonderia sp.
	Prostomatea	2	2	2	Prorodon ovum, Nolandia orientalis

^aWTA, whole transcriptome amplification (for further details, see Table S1 in the supplemental material). Although limited evidence of fragmentation in somatic genome has been reported in Litostomatea (51), we have assigned this class to the non-extensive fragmenters while awaiting further data.