Climate Factors and Wolbachia Infection Frequencies in Natural Populations of Drosophila melanogaster

Gora, N. V.; Serga, Svitlana; Maistrenko, Oleksandr M.; Ślęzak-Parnikoza, A.; Parnikoza, Іvan; Tarasiuk, A. N.; Demydov, S. V.; Kozeretska, Iryna

doi:10.3103/s0095452720030044

Cited by 7 publications

(5 citation statements)

References 32 publications

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Section: Discussionmentioning

confidence: 99%

“…Temperature further affects the interaction dynamics between host and microbe (reviewed in Corbin et al, 2017). Moderate temperatures between 22 and 26°C are usually considered comfortable for both partners of the Wolbachia – Drosophila association (Gora et al, 2020; Hague et al, 2020; López‐Madrigal & Duarte, 2019). In general, high temperatures lead to depletion of bacteria from the host, while lower temperatures slow down the replication of the symbiont and alleviate potential fitness costs (Chrostek et al, 2021; Hague et al, 2020; Strunov et al, 2013), although there are exceptions (Min & Benzer, 1997; Mouton et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

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Complex effects of environment and Wolbachia infections on the life history of Drosophila melanogaster hosts

Blanckenhorn

Miller

Kapun

2022

J of Evolutionary Biology

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Wolbachia bacteria are common endosymbionts of many arthropods found in gonads and various somatic tissues. They manipulate host reproduction to enhance their transmission and confer complex effects on fitness‐related traits. Some of these effects can serve to increase the survival and transmission efficiency of Wolbachia in the host population. The Wolbachia–Drosophila melanogaster system represents a powerful model to study the evolutionary dynamics of host–microbe interactions and infections. Over the past decades, there has been a replacement of the ancestral wMelCS Wolbachia variant by the more recent wMel variant in worldwide D. melanogaster populations, but the reasons remain unknown. To investigate how environmental change and genetic variation of the symbiont affect host developmental and adult life‐history traits, we compared effects of both Wolbachia variants and uninfected controls in wild‐caught D. melanogaster strains at three developmental temperatures. While Wolbachia did not influence any developmental life‐history traits, we found that both lifespan and fecundity of host females were increased without apparent fitness trade‐offs. Interestingly, wMelCS‐infected flies were more fecund than uninfected and wMel‐infected flies. By contrast, males infected with wMel died sooner, indicating sex‐specific effects of infection that are specific to the Wolbachia variant. Our study uncovered complex temperature‐specific effects of Wolbachia infections, which suggests that symbiont–host interactions in nature are strongly dependent on the genotypes of both partners and the thermal environment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Complex effects of environment and Wolbachia infections on the life history of Drosophila melanogaster hosts

Blanckenhorn

Miller

Kapun

2022

J of Evolutionary Biology

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“…At lower latitudes, and therefore in warmer climates, the frequency of Wolbachia is higher ( 45 ). However, the relationship between Wolbachia frequency, temperature and other environmental parameters in D. melanogaster is more complex at a smaller geographic scale, Wolbachia frequency is the highest in regions with a mean annual temperature of 22 to 26°C ( 53 ). In insects, in general, there is also a positive correlation between temperature and Wolbachia frequency, but only in temperate climates ( 50 ).…”

Section: Discussionmentioning

confidence: 99%

Wolbachia -Conferred Antiviral Protection Is Determined by Developmental Temperature

Chrostek

Martins

Marialva

et al. 2021

mBio

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“…The low prevalence of Wolbachia sp. in the same insect host from different locations probably is due to genetic or environmental factors (Kulkarni et al, 2019; Gora et al, 2020). It is worth noting that some infections may escape standard molecular detection, as they possess a low titer in the host species.…”

Section: Discussionmentioning

confidence: 99%

Molecular detection of reproductive symbionts and parthenogenesis experiments in Tuta absoluta from Argentina: facing potential for sustainable and specific pest control strategies

Cagnotti

Conte

Kramár

et al. 2023

Entomologia Exp Applicata

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Tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), is a key pest of tomato crops. Specific and environmentally friendly control strategies against this pest, such as the sterile insect technique (SIT), are under development and sexual reproduction has emerged as a key focal point to ensure its success. In the present study, we analyzed four representative T. absoluta populations from Argentina, focusing on the molecular detection of endosymbionts potentially associated with reproductive abnormalities and on determining whether parthenogenesis can occur under laboratory conditions. Larvae of T. absoluta were collected in commercial tomato plantations from La Plata and Mar del Plata (both in Buenos Aires province), Bella Vista (Corrientes province), and Yuto (Jujuy province). Tuta absoluta adults were evaluated by standard PCR for the presence of reproductive endosymbionts (Wolbachia sp., Spiroplasma sp., Arsenophonus sp., Cardinium sp., and Rickettsia sp.). For parthenogenesis assays, 20-23 virgin females from each T. absoluta geographic population were life-long isolated in Petri dishes with a tomato leaf. Fecundity, fertility, and female longevity were estimated and compared with results from mated females from each population. Our results showed the presence of a unique endosymbiont (Wolbachia sp. supergroup B, sequence type 41). Fecundity of the unmated females was significantly lower than fecundity of mated females in all T. absoluta populations. In addition, unmated females only laid infertile eggs. In conclusion, the absence of parthenogenesis in T. absoluta from representative geographic populations supports the implementation of SIT and mating disruption as effective control strategies against this pest in Argentina.

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Climate Factors and Wolbachia Infection Frequencies in Natural Populations of Drosophila melanogaster

Cited by 7 publications

References 32 publications

Complex effects of environment and Wolbachia infections on the life history of Drosophila melanogaster hosts

Complex effects of environment and Wolbachia infections on the life history of Drosophila melanogaster hosts

Wolbachia -Conferred Antiviral Protection Is Determined by Developmental Temperature

Molecular detection of reproductive symbionts and parthenogenesis experiments in Tuta absoluta from Argentina: facing potential for sustainable and specific pest control strategies

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