Infectious parthenogenesis

Huigens, Martinus E.; Luck, Robert F.; Klaassen, Raymond H. G.; Maas, Marc F.P.M.; Timmermans, Martijn J. T. N.; Stouthamer, Richard

doi:10.1038/35012066

Cited by 242 publications

(192 citation statements)

References 14 publications

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“…Both intra-and interspecific transfer seem highly probable in nature, because these wasps are host generalists and multiparasitism has been documented (Pinto 1999). Our study confirms the frequent intraspecific horizontal transfer that has been previously observed in T. kaykai (Huigens et al 2000). The interspecific horizontal transfer of PI Wolbachia between T. kaykai and T. deion, which are sympatric species, also seems likely to occur in nature.…”

Section: Discussionsupporting

confidence: 90%

Natural interspecific and intraspecific horizontal transfer of parthenogenesis–inducingWolbachiainTrichogrammawasps

Huigens¹,

Almeida

Boons³

et al. 2004

Proc. R. Soc. Lond. B

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243

254

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The intracellular bacterium Wolbachia is one of the most common symbionts in arthropods and, because of its manipulative effects on host reproduction, is assumed to be an important factor in several evolutionary processes. These bacteria are mainly vertically transmitted from mother to daughter through the egg cytoplasm, and horizontal transmission is generally assumed to be rare. Here, we show natural inter-and intraspecific horizontal transfer of parthenogenesis-inducing Wolbachia between parasitoid wasps of the genus Trichogramma. Horizontal transfer was observed when infected and uninfected larvae shared the same host egg. This is the first report, to our knowledge, on interspecific horizontal transfer of Wolbachia between closely related sympatric species. Some originally uninfected immature wasps acquired Wolbachia while inside the host egg, but not all of these newly infected females exhibited the parthenogenesis phenotype. In general, intraspecific horizontal transfer was more successful than interspecific transfer. Wolbachia underwent vertical transmission in the new species but the infection tended to be lost within several generations. Our results have important implications for understanding the evolution of Wolbachia-host associations.

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Section: Discussionsupporting

confidence: 90%

Natural interspecific and intraspecific horizontal transfer of parthenogenesis–inducingWolbachiainTrichogrammawasps

Huigens¹,

Almeida

Boons³

et al. 2004

Proc. R. Soc. Lond. B

Self Cite

243

254

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show abstract

“…Moreover, frequent HT from infected to uninfected individuals of another reproductive parasite, a parthenogenesis-inducing Wolbachia, was observed in the parasitoid wasp Trichogramma kaykai [22,23]. Infected and uninfected T. kaykai larvae shared the same host and some of the originally uninfected larvae acquired the infection.…”

Section: Discussionmentioning

confidence: 99%

Evolution of early male-killing in horizontally transmitted parasites

Bernhauerová

Berec²,

Maxin

2015

Proc. R. Soc. B.

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Early male-killing (MK) bacteria are vertically transmitted reproductive parasites which kill male offspring that inherit them. Whereas their incidence is well documented, characteristics allowing originally non-MK bacteria to gradually evolve MK ability remain unclear. We show that horizontal transmission is a mechanism enabling vertically transmitted bacteria to evolve fully efficient MK under a wide range of host and parasite characteristics, especially when the efficacy of vertical transmission is high. We also show that an almost 100% vertically transmitted and 100% effective male-killer may evolve from a purely horizontally transmitted non-MK ancestor, and that a 100% efficient male-killer can form a stable coexistence only with a non-MK bacterial strain. Our findings are in line with the empirical evidence on current MK bacteria, explain their high efficacy in killing infected male embryos and their variability within and across insect taxa, and suggest that they may have evolved independently in phylogenetically distinct species.

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“…Direct or indirect interactions during larval development may provide good opportunities for HT (e.g. Huigens et al 2000) and further opportunities may arise when the mature wasps emerge and mate inside the syconium, where some species engage in fights resulting in injuries and deaths (see also Rigaud & Juchault 1995).…”

Section: Discussion (A) High Incidence Of Wolbachia In Fig Waspsmentioning

confidence: 99%

Convergent incidences ofWolbachiainfection in fig wasp communities from two continents

Haine

Cook

2005

Proc. R. Soc. B.

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Wide surveys suggest that Wolbachia bacteria infect ca. 20% of all insect species, but particular taxonomic or ecological groups may display significantly higher or lower incidences. We studied 61 fig wasp species in Australia and found the highest known incidence (67%) of infection in a targeted study of this nature. A comparable study in Panama reported a similar figure (59%), confirming the exceptionally high incidence of Wolbachia in fig wasps. Importantly, these are two independent estimates of Wolbachia incidence in fig wasp communities, because no host species, or even genera, are shared between localities. The high level of infection may reflect enhanced opportunities for horizontal transmission inside fig fruits. Although incidence was similar in Panama and Australia, the actual strains involved were different and region-specific. Local strains were shared by several host species, although there was often no obvious (direct) ecological link between two hosts with the same infection.

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Infectious parthenogenesis

Cited by 242 publications

References 14 publications

Natural interspecific and intraspecific horizontal transfer of parthenogenesis–inducingWolbachiainTrichogrammawasps

Natural interspecific and intraspecific horizontal transfer of parthenogenesis–inducingWolbachiainTrichogrammawasps

Evolution of early male-killing in horizontally transmitted parasites

Convergent incidences ofWolbachiainfection in fig wasp communities from two continents

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