<i>Wolbachia, Cardinium</i> and climate: an analysis of global data

Charlesworth, Jane; Weinert, Lucy A.; Araujo-Jnr, Eli V.; Welch, John J.

doi:10.1101/490284

Cited by 8 publications

(7 citation statements)

References 29 publications

(24 reference statements)

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“…The starting point for this dataset was the datasets provided by Weinert et al ., (2015) and Charlesworth et al . (2019) which cover Wolbachia surveys until early 2018. To add Wolbachia published data from 2018 to 2020, we used the keyword ‘ Wolbachia ’ on Google Scholar (http://www.scholar.google.com) for all published data from January 2018 to October 10th, 2021.…”

Section: Methodsmentioning

confidence: 99%

“…To compare Wolbachia incidence in scale insects with other arthropods, we first compiled an up-to-date, comprehensive list of arthropod species that have been tested for Wolbachia infection status (File S1). The starting point for this dataset was the datasets provided by Weinert et al, (2015) and Charlesworth et al (2019) which cover Wolbachia surveys until early 2018. To add Wolbachia published data from 2018 to 2020, we used the keyword 'Wolbachia' on Google Scholar (www.…”

Section: Estimating and Comparing Wolbachia Incidence Between Scale I...mentioning

confidence: 99%

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Wolbachia in scale insects: a distinct pattern of infection frequencies and potential transfer routes via ant associates

Sanaei

Lin

Cook

et al. 2021

Environmental Microbiology

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Wolbachia is one of the most successful endosymbiotic bacteria of arthropods. Known as the 'master of manipulation', Wolbachia can induce a wide range of phenotypes in its host that can have farreaching ecological and evolutionary consequences and may be exploited for disease and pest control. However, our knowledge of Wolbachia's distribution and the infection rate is unevenly distributed across arthropod groups such as scale insects. We fitted a distribution of within-species prevalence of Wolbachia to our data and compared it to distributions fitted to an up-to-date dataset compiled from surveys across all arthropods. The estimated distribution parameters indicate a Wolbachia infection frequency of 43.6% (at a 10% prevalence threshold) in scale insects. Prevalence of Wolbachia in scale insects follows a distribution similar to exponential decline (most species are predicted to have low prevalence infections), in contrast to the U-shaped distribution estimated for other taxa (most species have a very low or very high prevalence). We observed no significant associations between Wolbachia infection and scale insect traits. Finally, we screened for Wolbachia in scale insect's ecological associates. We found a positive correlation between Wolbachia infection in scale insects and their ant associates, pointing to a possible route of horizontal transfer of Wolbachia.

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Section: Methodsmentioning

confidence: 99%

Section: Estimating and Comparing Wolbachia Incidence Between Scale I...mentioning

confidence: 99%

Wolbachia in scale insects: a distinct pattern of infection frequencies and potential transfer routes via ant associates

Sanaei

Lin

Cook

et al. 2021

Environmental Microbiology

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“…Similarly, some strains are observed at higher infection frequency in highertemperature areas of their host range (Mouton et al, 2006;Toju & Fukatsu, 2011;Zhu et al, 2018). A recent metaanalysis reported complex relationships between climatic conditions and Wolbachia prevalence in arthropods, without a clear general trend: while a weak positive relationship between Wolbachia incidence and temperature was observed in temperate regions, prevalence was generally lower in the tropics (Charlesworth et al, 2019). Strain-specific effects may explain some of this complex pattern.…”

Section: (4) the Role Of Ecologymentioning

confidence: 99%

Wolbachiahost shifts: routes, mechanisms, constraints and evolutionary consequences

2020

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Wolbachia is one of the most abundant endosymbionts on earth, with a wide distribution especially in arthropods. Effective maternal transmission and the induction of various phenotypes in their hosts are two key features of this bacterium. Here, we review our current understanding of another central aspect of Wolbachia's success: their ability to switch from one host species to another. We build on the proposal that Wolbachia host shifts occur in four main steps: (i) physical transfer to a new species; (ii) proliferation within that host; (iii) successful maternal transmission; and (iv) spread within the host species. Host shift can fail at each of these steps, and the likelihood of ultimate success is influenced by many factors. Some stem from traits of Wolbachia (different strains have different abilities for host switching), others on host features such as genetic resemblance (e.g. host shifting is likely to be easier between closely related species), ecological connections (the donor and recipient host need to interact), or the resident microbiota. Host shifts have enabled Wolbachia to reach its enormous current incidence and global distribution among arthropods in an epidemiological process shaped by loss and acquisition events across host species. The ability of Wolbachia to transfer between species also forms the basis of ongoing endeavours to control pests and disease vectors, following artificial introduction into uninfected hosts such as mosquitoes. Throughout, we emphasise the many knowledge gaps in our understanding of Wolbachia host shifts, and question the effectiveness of current methodology to detect these events. We conclude by discussing an apparent paradox: how can Wolbachia maintain its ability to undergo host shifts given that its biology seems dominated by vertical transmission?

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“…Wolbachia infect approximately half of all insect species but their prevalence varies widely between orders and genera (Weinert, Araujo‐Jnr, Ahmed, & Welch, ). Variation in infection also occurs within species, ranging from low frequencies to fixation (Charlesworth, Weinert, Araujo, & Welch, ; Hilgenboecker, Hammerstein, Schlattmann, Telschow, & Werren, ). The prevalence of Wolbachia infections may be underestimated because infections can occur at low densities that are undetectable by conventional PCR (Mee, Weeks, Walker, Hoffmann, & Duchemin, ).…”

Section: Wolbachia Infections In Natural Populationsmentioning

confidence: 99%

An elusive endosymbiont: DoesWolbachiaoccur naturally inAedes aegypti?

Ross

Callahan

Yang

et al. 2020

Ecology and Evolution

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Wolbachia are maternally inherited endosymbiotic bacteria found within many insect species. Aedes mosquitoes experimentally infected with Wolbachia are being released into the field for Aedes‐borne disease control. These Wolbachia infections induce cytoplasmic incompatibility which is used to suppress populations through incompatible matings or replace populations through the reproductive advantage provided by this mechanism. However, the presence of naturally occurring Wolbachia in target populations could interfere with both population replacement and suppression programs depending on the compatibility patterns between strains. Aedes aegypti were thought to not harbor Wolbachia naturally but several recent studies have detected Wolbachia in natural populations of this mosquito. We therefore review the evidence for natural Wolbachia infections in A. aegypti to date and discuss limitations of these studies. We draw on research from other mosquito species to outline the potential implications of natural Wolbachia infections in A. aegypti for disease control. To validate previous reports, we obtained a laboratory population of A. aegypti from New Mexico, USA, that harbors a natural Wolbachia infection, and we conducted field surveys in Kuala Lumpur, Malaysia, where a natural Wolbachia infection has also been reported. However, we were unable to detect Wolbachia in both the laboratory and field populations. Because the presence of naturally occurring Wolbachia in A. aegypti could have profound implications for Wolbachia‐based disease control programs, it is important to continue to accurately assess the Wolbachia status of target Aedes populations.

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Wolbachia, Cardinium and climate: an analysis of global data

Cited by 8 publications

References 29 publications

Wolbachia in scale insects: a distinct pattern of infection frequencies and potential transfer routes via ant associates

Wolbachia in scale insects: a distinct pattern of infection frequencies and potential transfer routes via ant associates

Wolbachiahost shifts: routes, mechanisms, constraints and evolutionary consequences

An elusive endosymbiont: DoesWolbachiaoccur naturally inAedes aegypti?

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