Table 2.

Life without P? A list of microorganisms in which no RNase P RNA can be identified.

No Rnase P RNA?	Genome size (nt)	endosymbiont of…
Candidatus Carsonella ruddii uid58773	159, 662	Pachpsylla venusta
Candidatus Hodgkinia cicadicola Dsem uid59311	144,000	Cicadas
Candidatus Nasuia deltocephalinicola NAS ALF uid214084	112,000	mealy bugs
Candidatus Portiera aleyrodidarum BT B uid173859	357,000	Bemisia tabaci
Candidatus Tremblaya phenacola PAVE uid209173	170,00	mealy bugs
Candidatus Tremblaya princeps PCIT uid68741	138,000	mealy bugs
Candidatus Uzinura diaspidicola ASNER uid186740	263, 000	armoured scale insects
Candidatus Zinderia insecticola CARI uid52459	208,000	Clastoptera arizonana