Variation in sex determination mechanisms may constrain parthenogenesis-induction by endosymbionts in haplodiploid systems

Verhulst, Eveline C.; Pannebakker, Bart; Geuverink, Elzemiek

doi:10.1016/j.cois.2023.101023

Cited by 4 publications

(2 citation statements)

References 48 publications

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“…We argue it is unlikely for embryo ploidy itself to directly serve as this signal, for several reasons. First, in insects, maternal and paternal pronuclei stay physically separated for most of the first mitotic cycle ( Tram et al 2003 ). Second, even if Wolbachia or PI factors were capable of “counting chromosomes”, a ploidy signal would not explain why the diploidization event only ever occurs at the first mitosis.…”

Section: Discussionmentioning

confidence: 99%

Identification of Parthenogenesis-Inducing Effector Proteins in Wolbachia

Fricke,

Lindsey

2024

Genome Biology and Evolution

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Bacteria in the genus Wolbachia have evolved numerous strategies to manipulate arthropod sex, including the conversion of would-be male offspring to asexually reproducing females. This so-called “parthenogenesis-induction” phenotype can be found in a number of Wolbachia strains that infect arthropods with haplodiploid sex determination systems, including parasitoid wasps. Despite the discovery of microbe-mediated parthenogenesis more than 30 years ago, the underlying genetic mechanisms have remained elusive. We used a suite of genomic, computational, and molecular tools to identify and characterize two proteins that are uniquely found in parthenogenesis-inducing Wolbachia and have strong signatures of host-associated bacterial effector proteins. These putative parthenogenesis-inducing proteins have structural homology to eukaryotic protein domains including nucleoporins, the key insect sex-determining factor Transformer, and a eukaryotic-like serine-threonine kinase with leucine rich repeats. Furthermore, these proteins significantly impact eukaryotic cell biology in the model Saccharomyces cerevisiae. We suggest these proteins are parthenogenesis-inducing factors and our results indicate this would be made possible by a novel mechanism of bacterial-host interaction.

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Section: Discussionmentioning

confidence: 99%

Identification of Parthenogenesis-Inducing Effector Proteins in Wolbachia

Fricke,

Lindsey

2024

Genome Biology and Evolution

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“…Spiroplasma is another endosymbiotic bacterium that has been found to impact sex determination in certain insects (Verhulst et al, 2023). This bacterium exhibits unique strategies, including male-killing and malebiased sex ratios, to influence host reproduction (Arai et al, 2023).…”

Section: Spiroplasmamentioning

confidence: 99%

First report on the tropical fire ant, Solonopsis geminate (Fabricius) as flower damaging pest of moringa (Moringa oleifera Lam.) cultivated near the Western Ghats of Dindigul, Tamil Nadu.

2023

Insect Envt

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The first issue of Insect Environment was published in 1996. The sole objective of Insect Environment is to popularize insect study through popular, semi-technical and technical research notes, extension notes for managing insect pests, photographs, short blogs and essays on all aspects of insects. The journal is published quarterly, in March, June, September, and December.Insect Environment subscription is free; articles can be downloaded from the website https://insectenvironment.com/ For regular updates, blogs and the journal, upload your mail ID on our website. THERE IS NO SUBSCRIPTION FEE. Those who wish to promote insect science and conservation are welcome to send the sponsorship to AVIAN Trust Bank details are as follows: Bank Name: Federal Bank Bank A/C: 11040100351959 Bank IFSC: FDRL0001104 Swift code: FDRLINBBIBD Author guidelinesShort popular insect notes, review essays, new records, profiles, tributes, and views are acceptable. There are no page charges; each article should preferably not exceed 500 words. Authors can refer to back volumes available on the website for writing style. Good photographs are encouraged. A special insect photo gallery "Insect Lens" is to encourage professional and amateur photographs on insects. These will be published in the quarterly Insect Environment.The blogs are for quick dissemination of insect "news". These will be uploaded within a week of submission and will be on the website. Blogs should be about hundred words with one photograph, in simple English This journal is unique in that it encourages articles from students to amateurs to professionals! It is hosted in CABI (as full text) and ZooBank, Indian Abstracts, Research Gate, Google Scholar etc. ensuring global coverage. Scientific articles are assigned DOI.

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Wolbachia supergroup A in Enoplognatha latimana (Araneae: Theridiidae) in Poland as an example of possible horizontal transfer of bacteria

Konecka,

Szymkowiak

2024

Sci Rep

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Wolbachia (phylum Pseudomonadota, class Alfaproteobacteria, order Rickettsiales, family Ehrlichiaceae) is a maternally inherited bacterial symbiont infecting more than half of arthropod species worldwide and constituting an important force in the evolution, biology, and ecology of invertebrate hosts. Our study contributes to the limited knowledge regarding the presence of intracellular symbiotic bacteria in spiders. Specifically, we investigated the occurrence of Wolbachia infection in the spider species Enoplognatha latimana Hippa and Oksala, 1982 (Araneae: Theridiidae) using a sample collected in north-western Poland. To the best of our knowledge, this is the first report of Wolbachia infection in E. latimana. A phylogeny based on the sequence analysis of multiple genes, including 16S rRNA, coxA, fbpA, ftsZ, gatB, gltA, groEL, hcpA, and wsp revealed that Wolbachia from the spider represented supergroup A and was related to bacterial endosymbionts discovered in other spider hosts, as well as insects of the orders Diptera and Hymenoptera. A sequence unique for Wolbachia supergroup A was detected for the ftsZ gene. The sequences of Wolbachia housekeeping genes have been deposited in publicly available databases and are an important source of molecular data for comparative studies. The etiology of Wolbachia infection in E. latimana is discussed.

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Variation in sex determination mechanisms may constrain parthenogenesis-induction by endosymbionts in haplodiploid systems

Cited by 4 publications

References 48 publications

Identification of Parthenogenesis-Inducing Effector Proteins in Wolbachia

Identification of Parthenogenesis-Inducing Effector Proteins in Wolbachia

First report on the tropical fire ant, Solonopsis geminate (Fabricius) as flower damaging pest of moringa (Moringa oleifera Lam.) cultivated near the Western Ghats of Dindigul, Tamil Nadu.

Wolbachia supergroup A in Enoplognatha latimana (Araneae: Theridiidae) in Poland as an example of possible horizontal transfer of bacteria

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