Vitellogenin Facilitates Associations between the Whitefly and a Bacteriocyte Symbiont

Sun, Xiang; Liu, Bingqi; Chen, Zhan-Bo; Li, Chuqiao; Li, Xing-Ye; Hong, Ji-Sheng; Luan, Jing

doi:10.1128/mbio.02990-22

Cited by 7 publications

(4 citation statements)

References 61 publications

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“…This hypothesis gains support from findings indicating that antibiotic-treated beetles, devoid of endosymbionts (Wolbachia and Rickettsia), exhibited delayed egg development in their ovaries (Zchori-Fein, Borad, and Harari 2006). Collectively, these studies provide compelling evidence for the involvement of Wolbachia in both dispersal and egg production processes An intimate interaction between Vitellogenin and endosymbionts is known from several insects (Brumin et al 2020;Guo et al 2018;Mao et al 2020;Sun et al 2023). In whiteflies, for example, Vitellogenin affects fecundity and fitness and the transmission of the endosymbiont, while the endosymbionts affect the transmission of Vitellogenin into the bacteriocytes (Sun et al 2023).…”

Section: Discussionmentioning

confidence: 62%

“…Collectively, these studies provide compelling evidence for the involvement of Wolbachia in both dispersal and egg production processes An intimate interaction between Vitellogenin and endosymbionts is known from several insects (Brumin et al 2020;Guo et al 2018;Mao et al 2020;Sun et al 2023). In whiteflies, for example, Vitellogenin affects fecundity and fitness and the transmission of the endosymbiont, while the endosymbionts affect the transmission of Vitellogenin into the bacteriocytes (Sun et al 2023). It was also shown that Wolbachia hitchhikes the host's system for transovarial transportation of Vitellogenin in order to enter the ovaries and the oocytes for the bacterium's own propagation (Guo et al 2018).…”

Section: Discussionmentioning

confidence: 90%

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Changes in gene expression align with behavioural differences in reproductive choices in a social beetle.

Regon,

Schudoma,

Moncaz

et al. 2024

Preprint

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Social animals often share their colony with individuals of different relatedness levels and life stages. In most social insects, the society structure consists of only one or a few reproducing females in the colony. When no reproductive depression is in place, a fertile female must, therefore, choose whether to stay with its natal group and limit her reproductive potential or leave to establish a new colony. The factors governing and following this reproductive decision are still largely unknown. The date stone beetle, Coccotrypes dactyliperda (Curculiondae), resides in intricate galleries carved inside date seeds. Sib mating is common in this species, and the inbreeding coefficient is high. While most females in a natal group stay and raise their offspring with their sisters, some females leave the group to start a colony of their own, regardless of the resources available within the natal group. In this study, we hypothesized that dispersing females should present physiological changes consistent with the anticipated challenges, including finding a host and egg laying, while the physiology of females that stay in the natal seed should demonstrate adaptation related to cohabiting in an existing nest. To test our hypothesis, we examined the development of ovaries in females that left the natal seed and their sisters that remained in the seed. In addition, we sequenced and analysed the transcriptome of pooled groups of females that left the natal seed and their sisters that stayed. Our physiological and transcriptomic results indicate that females that left the natal seed exhibit greater ovarian development compared to females that remained in the seed. Our transcriptomic data revealed further differences between the two groups, including genes related to nest-mate recognition and other physiological adaptations. Our study is the first to link behaviour, physiological changes and transcriptomic analyses with decision-making in relation to reproductive strategies in a social beetle.

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Section: Discussionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 90%

Changes in gene expression align with behavioural differences in reproductive choices in a social beetle.

Regon,

Schudoma,

Moncaz

et al. 2024

Preprint

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“…As an indispensable protein for embryonic development and a key element of vitellogenesis, Vg can be taken up by oocytes through endocytosis regulated by VgR, and provide key nutrients and functional substances for developing embryos [51]. Studies have shown that Vg and VgR are key factors for microorganisms including viruses and bacteria to break through the insect ovarian barrier for maternal transmission [52][53][54]. In RSV-L. striatellus, RNPs, composed of CP, RdRp, and genomic RNA, can bind with Vg produced by haemocyte and enter ovarian germarium nurse cells through VgR-mediated endocytosis to complete vertical transmission [29,30].…”

Section: Discussionmentioning

confidence: 99%

Rice Stripe Virus Infection Facilitates the Reproductive Potential of Laodelphax striatellus

Zhang,

Yu,

et al. 2024

Agronomy

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The rice stripe virus (RSV) is transmitted by the small brown planthopper Laodelphax striatellus in a persistent and circulative–propagative manner. During the last few decades, RSV has caused serious disease outbreaks in rice fields in China. The results of long-term coevolution have led to complex and diverse relationships between viruses and vector insects, and understanding these interactions is critical for the management of diseases and vector organisms. In this study, three groups of comparative experiments were performed to investigate the effects of RSV infection on the reproductive parameters, vitellogenin (Vg), and Vg receptor (VgR) expressions of L. striatellus. The results showed that RSV infection promoted the fecundity, hatchability, and Vg and VgR expressions of L. striatellus but had no effect on the preoviposition period and oviposition period. Furthermore, the RNA interference of the nucleocapsid protein (CP) gene and the injection of the CP antibody in RSV-viruliferous L. striatellus reduced the fecundity, hatchability, and Vg and VgR expressions, further strengthening the hypothesis that RSV may manipulate the reproductive behavior of insect vectors to promote its own transmission. The results of this study can further reveal the interaction mechanism of virus–vector insects in reproduction and virus transmission, and provide new insights for the control of insect-borne viruses.

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“…Some symbionts (e.g., Spiroplasma) use VgR-mediated endocytosis to target oocytes (30). Vg is localized in the bacteriocytes of whiteflies and facilitates the persistence of whitefly-bacteriocyte symbiont associations (107). How Vg impacts the maintenance of most insect-microbe symbioses is not understood.…”

Section: Bacteriocyte Adaptation For Symbiont Transmissionmentioning

confidence: 99%

Insect Bacteriocytes: Adaptation, Development, and Evolution

Luan

2024

Annu. Rev. Entomol.

Self Cite

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Bacteriocytes are host cells specialized to harbor symbionts in certain insect taxa. The adaptation, development, and evolution of bacteriocytes underlie insect symbiosis maintenance. Bacteriocytes carry enriched host genes of insect and bacterial origin whose transcription can be regulated by microRNAs, which are involved in host–symbiont metabolic interactions. Recognition proteins of peptidoglycan, the bacterial cell wall component, and autophagy regulate symbiont abundance in bacteriocytes. Horizontally transferred genes expressed in bacteriocytes influence the metabolism of symbiont peptidoglycan, which may affect the bacteriocyte immune response against symbionts. Bacteriocytes release or transport symbionts into ovaries for symbiont vertical transmission. Bacteriocyte development and death, regulated by transcriptional factors, are variable in different insect species. The evolutionary origin of insect bacteriocytes remains unclear. Future research should elucidate bacteriocyte cell biology, the molecular interplay between bacteriocyte metabolic and immune functions, the genetic basis of bacteriocyte origin, and the coordination between bacteriocyte function and host biology in diverse symbioses.

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Vitellogenin Facilitates Associations between the Whitefly and a Bacteriocyte Symbiont

Cited by 7 publications

References 61 publications

Changes in gene expression align with behavioural differences in reproductive choices in a social beetle.

Changes in gene expression align with behavioural differences in reproductive choices in a social beetle.

Rice Stripe Virus Infection Facilitates the Reproductive Potential of Laodelphax striatellus

Insect Bacteriocytes: Adaptation, Development, and Evolution

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