Arthropods and inherited bacteria: from counting the symbionts to understanding how symbionts count

Table 1 Case studies where heritable bacteria commonly transfer horizontally on an ecological timescale

Bacterium	Movement occurs between	Ecological context	References
*Arsenophonus nasoniae*	Parasitic wasp species	Sharing of host pupa	[19]
*A. phytopathogenicus*	Species of phytophagous Hemiptera	Through plant phloem	[20]
*Rickettsia*	Bemisia whiteflies	Through plant phloem	[21]
*Wolbachia*	Parasitic wasp species	Sharing of host egg	[22]
*Hamiltonella defensa*	Aphids	Via exterior of the ovipositor of parasitic wasps	[23]

ISSN: 1741-7007