<i>Wolbachia</i>in the spittlebug<i>Prosapia ignipectus</i>: Variable infection frequencies, but no apparent effect on host reproductive isolation

Wheeler, Timothy B.; Thompson, Vinton; Conner, William R.; Cooper, Brandon S.

doi:10.1002/ece3.7782

Cited by 5 publications

(5 citation statements)

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“…The acquisition of Wolbachia strains in P . spumarius from multiple unrelated donor species (e.g., chrysomelids, drosophilids, mites, vespids, weevils, whiteflies) was first suggested by [ 53 ] and would appear to be common in other species of spittlebugs [ 54 , 55 ]. Horizontal transmission may be a key factor in the infection dynamic and maintenance of heritable microbial symbionts, especially if they cause weak reproductive manipulations [ 143 , 147 ].…”

Section: Discussionmentioning

confidence: 99%

“…Although leafhoppers are phloem-feeders and spittlebugs are xylem-feeders, feeding guilds are not strict categories and, especially among vascular-feeder leafhoppers, the distinction between the phloem-feeding and xylem-feeding guilds is blurred [146], thus possibly facilitating the horizontal transmission of microbial symbionts. The acquisition of Wolbachia strains in P. spumarius from multiple unrelated donor species (e.g., chrysomelids, drosophilids, mites, vespids, weevils, whiteflies) was first suggested by [53] and would appear to be common in other species of spittlebugs [54,55]. Horizontal transmission may be a key factor in the infection dynamic and maintenance of heritable microbial symbionts, especially if they cause weak reproductive manipulations [143,147].…”

Section: Plos Onementioning

confidence: 99%

“…Wolbachia were detected in P . spumarius populations of different geographic areas [ 53 – 55 ] and the infection prevalence was shown to differ between mitochondrial lineages of P . spumarius and between the regions of the geographic range [ 53 ].…”

Section: Introductionmentioning

confidence: 99%

“…Philaenus spumarius can also harbors facultative bacterial symbionts, namely Arsenophonus, Cardinium, Rickettsia and Wolbachia, whose role in spittlebug populations is not yet known [54]. Wolbachia were detected in P. spumarius populations of different geographic areas [53][54][55] and the infection prevalence was shown to differ between mitochondrial lineages of P. spumarius and between the regions of the geographic range [53]. In the latter study, Wolbachia was considered as a possible factor of reproductive isolation, via cytoplasmic incompatibility, between populations of NE and SW lineage in the Carpathians contact zone.…”

Section: Introductionmentioning

confidence: 99%

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Wolbachia infection and genetic diversity of Italian populations of Philaenus spumarius, the main vector of Xylella fastidiosa in Europe

et al. 2022

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Philaenus spumarius is a cosmopolitan species that has become a major threat to European agriculture being recognized as the main vector of the introduced plant pathogen Xylella fastidiosa, the agent of the “olive quick decline syndrome”, a disease which is devastating olive orchards in southern Italy. Wolbachia are bacterial symbionts of many insects, frequently as reproductive parasites, sometime by establishing mutualistic relationships, able to spread within host populations. Philaenus spumarius harbors Wolbachia, but the role played by this symbiont is unknown and data on the infection prevalence within host populations are limited. Here, the Wolbachia infection rate was analyzed in relation to the geographic distribution and the genetic diversity of the Italian populations of P. spumarius. Analysis of the COI gene sequences revealed a geographically structured distribution of the three main mitochondrial lineages of P. spumarius. Wolbachia was detected in half of the populations sampled in northern Italy where most individuals belonged to the western-Mediterranean lineage. All populations sampled in southern and central Italy, where the individuals of the eastern-Mediterranean lineage were largely prevalent, were uninfected. Individuals of the north-eastern lineage were found only in populations from the Alps in the northernmost part of Italy, at high altitudes. In this area, Wolbachia infection reached the highest prevalence, with no difference between north-eastern and western-Mediterranean lineage. Analysis of molecular diversity of COI sequences suggested no significant effect of Wolbachia on population genetics of P. spumarius. Using the MLST approach, six new Wolbachia sequence types were identified. Using FISH, Wolbachia were observed within the host’s reproductive tissues and salivary glands. Results obtained led us to discuss the role of Wolbachia in P. spumarius, the factors influencing the geographic distribution of the infection, and the exploitation of Wolbachia for the control of the vector insect to reduce the spread of X. fastidiosa.

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Section: Discussionmentioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wolbachia infection and genetic diversity of Italian populations of Philaenus spumarius, the main vector of Xylella fastidiosa in Europe

et al. 2022

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“…However, the paucity of very closely related Drosophila species showing high levels of intrinsic postzygotic isolation ( 101 ), despite the pervasiveness of Wolbachia infections among Drosophila species, and the young age of many current Wolbachia infections, including those in C. pipiens ( 102 ), make it increasingly implausible that Wolbachia contribute frequently to the origin of species (compare refs. 54 and 103 ). Convincing evidence of widespread Wolbachia effects on speciation or extinction rates will require incidence data and phylogenetic estimates for hundreds of host species ( 104 ).…”

Section: Discussionmentioning

confidence: 98%

WhyWolbachia-induced cytoplasmic incompatibility is so common

Turelli

Katznelson

Ginsberg

2022

Proc. Natl. Acad. Sci. U.S.A.

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Cytoplasmic incompatibility (CI) is the most common reproductive manipulation produced by Wolbachia , obligately intracellular alphaproteobacteria that infect approximately half of all insect species. Once infection frequencies within host populations approach 10%, intense CI can drive Wolbachia to near fixation within 10 generations. However, natural selection among Wolbachia variants within individual host populations does not favor enhanced CI. Indeed, variants that do not cause CI but increase host fitness or are more reliably maternally transmitted are expected to spread if infected females remain protected from CI. Nevertheless, approximately half of analyzed Wolbachia infections cause detectable CI. Why? The frequency and persistence of CI are more plausibly explained by preferential spread to new host species (clade selection) rather than by natural selection among variants within host populations. CI-causing Wolbachia lineages preferentially spread into new host species because 1) CI increases equilibrium Wolbachia frequencies within host populations, and 2) CI-causing variants can remain at high frequencies within populations even when conditions change so that initially beneficial Wolbachia infections become harmful. An epidemiological model describing Wolbachia acquisition and loss by host species and the loss of CI-induction within Wolbachia lineages yields simple expressions for the incidence of Wolbachia infections and the fraction of those infections causing CI. Supporting a determinative role for differential interspecific spread in maintaining CI, many Wolbachia infections were recently acquired by their host species, many show evidence for contemporary spatial spread or retreat, and rapid evolution of CI-inducing loci, especially degradation, is common.

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Temperature effects on cellular host-microbe interactions explain continent-wide endosymbiont prevalence

et al. 2022

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Wolbachiain the spittlebugProsapia ignipectus: Variable infection frequencies, but no apparent effect on host reproductive isolation

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 5 publications

References 88 publications

Wolbachia infection and genetic diversity of Italian populations of Philaenus spumarius, the main vector of Xylella fastidiosa in Europe

Wolbachia infection and genetic diversity of Italian populations of Philaenus spumarius, the main vector of Xylella fastidiosa in Europe

WhyWolbachia-induced cytoplasmic incompatibility is so common

Temperature effects on cellular host-microbe interactions explain continent-wide endosymbiont prevalence

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