Global genetic diversity, lineage distribution, and <i>Wolbachia</i> infection of the alfalfa weevil <i>Hypera postica</i> (Coleoptera: Curculionidae)

Sanaei, Ehsan; Husemann, Martin; Seiedy, Marjan; Rethwisch, Michael D.; Tuda, Midori; Toshova, Teodora; Kim, Min Jee; Atanasova, Д.; Kim, Iksoo

doi:10.1002/ece3.5474

Cited by 13 publications

(12 citation statements)

References 121 publications

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“…The Western clade individuals in northern France, the Netherlands, the Czech Republic, and Poland were infected with Wolbachia (Fig. 2 ), and all of them had identical ftsZ (699 bp), coxA (432 bp), and hcpA (463 bp) sequences as reported previously 46 , which corresponds to the prevailing strain wHypera1 47 . In contrast, Western clade individuals found in coastal southern France, Spain, Latvia, Hungary, and Croatia were uninfected (Fig.…”

Section: Resultssupporting

confidence: 70%

“…Hypera postica ( n = 149) were obtained from 33 localities covering most of its native distribution range (Table 1 ). Adults were collected from cultivated and wild legume vegetation of Medicago 47 , Trifolium in Egypt, and Vicia cracca in Bulgaria, mostly during the latest decade. The samples were then stored in ethanol at 4 °C until DNA extraction .…”

Section: Methodsmentioning

confidence: 99%

“…As a positive control, we used Wolbachia -infected Callosobruchus chinensis 71 . Blurred and extremely weak signals compared with the positive control were considered uninfected, which differs from a previous study 47 . Wolbachia -positive H. postica were further subjected to PCR and sequencing of the genes, coxA and hcpA , in addition to ftsZ for multilocus sequence typing of Wolbachia 72 .…”

Section: Methodsmentioning

confidence: 99%

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Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia

Tuda

Iwase

Kébé³

et al. 2021

Sci Rep

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The alfalfa weevil Hypera postica, native to the Western Palearctic, is an invasive legume pest with two divergent mitochondrial clades in its invading regions, the Western clade and the Eastern/Egyptian clade. However, knowledge regarding the native populations is limited. The Western clade is infected with the endosymbiotic bacteria Wolbachia that cause cytoplasmic incompatibility in host weevils. Our aim was to elucidate the spatial genetic structure of this insect and the effect of Wolbachia on its population diversity. We analyzed two mitochondrial and two nuclear genes of the weevil from its native ranges. The Western clade was distributed in western/central Europe, whereas the Eastern/Egyptian clade was distributed from the Mediterranean basin to central Asia. Intermediate mitotypes were found from the Balkans to central Asia. Most Western clade individuals in western Europe were infected with an identical Wolbachia strain. Mitochondrial genetic diversity of the infected individuals was minimal. The infected clades demonstrated a higher nonsynonymous/synonymous substitution rate ratio than the uninfected clades, suggesting a higher fixation of nonsynonymous mutations due to a selective sweep by Wolbachia. Trans-Mediterranean and within-European dispersal routes were supported. We suggest that the ancestral populations diversified by geographic isolation due to glaciations and that the diversity was reduced in the west by a recent Wolbachia-driven sweep(s). The intermediate clade exhibited a body size and host plant that differed from the other clades. Pros and cons of the possible use of infected-clade males to control uninfected populations are discussed.

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Section: Resultssupporting

confidence: 70%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia

Tuda

Iwase

Kébé³

et al. 2021

Sci Rep

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“…Several host‐shift events among closely related species, as inferred from patterns of Wolbachia strain distributions on host phylogenies, support the PDE hypothesis, e.g. in weevils (Lachowska, Kajtoch, & Knutelski, 2010; Sanaei et al ., 2019), Trissolcus wasps (Guz et al ., 2012), and Drosophila (Haine, Pickup, & Cook, 2005; Turelli et al ., 2018). By contrast, in some case studies focused on certain arthropod families or genera, only a negligible part of the data, if any, appeared to indicate a PDE, e.g.…”

Section: Factors Influencing Host Shiftsmentioning

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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“…Most of the studies regarding the temperature-dependent development of H. postica have been focused in larvae and pupae and have been carried out with populations from North America and Middle East Asia [ 14 , 18 ]. The results of these studies suggested wide variations in geographical regions [ 19 , 20 , 21 ]. On the other hand, literature dealing with the effect of abiotic factors on embryonic development is scarce.…”

Section: Introductionmentioning

confidence: 99%

Effects of Temperature and Relative Humidity on the Embryonic Development of Hypera postica Gyllenhal (Col.: Curculionidae)

Levi-Mourao

Madeira²,

Meseguer

et al. 2021

Insects

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The combined effect of the temperature and relative humidity on the survival and development time of the eggs of Spanish populations of the weevil Hypera postica, a key pest of alfalfa around the world, was evaluated under laboratory conditions. The experimental temperatures ranged from 8 to 36 °C, in 4 °C increments. Three relative humidity ranges were defined: high, medium, and low. Eggs of the alfalfa weevil successfully developed until larval emergence at all of the 24 conditions tested. However, the temperature and relative humidity affected the survival of the eggs. The egg developmental time decreased as the temperature increased from 8 to 32 °C, and the longest time was recorded at a low relative humidity (RH). The relationship between the development rate and temperature fit well to the lineal model for relative humidity. The minimum development threshold (T0) and the thermal requirement for egg development (K) ranged between 3 and 4 °C and 209 and 246 degree-days, respectively. According to these values and the occurrence of eggs and larvae (in winter) and adults (in autumn) in field samplings, the period of oviposition was determined. The results of the study contribute to better understanding the annual cycle and phenology of H. postica in the Iberian Peninsula and southern Europe.

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Global genetic diversity, lineage distribution, and Wolbachia infection of the alfalfa weevil Hypera postica (Coleoptera: Curculionidae)

Cited by 13 publications

References 121 publications

Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia

Diversification, selective sweep, and body size in the invasive Palearctic alfalfa weevil infected with Wolbachia

Wolbachiahost shifts: routes, mechanisms, constraints and evolutionary consequences

Effects of Temperature and Relative Humidity on the Embryonic Development of Hypera postica Gyllenhal (Col.: Curculionidae)

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