Postcopulatory Behavior of Tephritid Flies

Pérez‐Staples, Diana; Abraham, Solana

doi:10.1146/annurev-ento-120220-113618

Cited by 14 publications

(14 citation statements)

References 157 publications

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“…The filiform shape of the male tract, with no ejaculatory bulb, is in favour of a continuous sperm transfer during copulation instead of a time‐limited ejaculation. In that case, the duration of copulation may allow regulation of sperm transfer, as in some tephridid flies (Perez‐Staples & Abraham, 2023). In BSF it is from 20 to 40 min (Giunti et al, 2018), indicating variability, but not in the same order of magnitude as sperm stocks in females.…”

Section: Discussionmentioning

confidence: 99%

The reproductive tract of the black soldier fly (Hermetia illucens) is highly differentiated and suggests adaptations to sexual selection

Munsch‐Masset,

Labrousse,

Beaugeard

et al. 2023

Entomologia Exp Applicata

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The reproductive biology of the black soldier fly (BSF), Hermetia illucens (L.) (Diptera: Stratiomyidae), was investigated in males and females with a focus on how sperm is handled by males before – and by females after – copulation. As this insect has great economic importance for protein production from agri‐food wastes, its reproduction needs to be precisely known. A detailed description of male and female reproductive organs was made, and sperm were counted in male and female storage organs. Measures of testis and sperm counts were performed in males of various ages and their dynamics was compared to the ovaries of females. Both male and female tracts were long, and consisted of various successive parts. In males, testes fill the vas deferens with mature sperm, that are tangled as ‘windrows’, and sperm pass successively through a ‘studded pipe’ and three phallic ‘wands’ before being transferred to females. In virgin males, mean (± SEM) sperm number increased from approximately 9700 (± 1400, n = 5) to 39600 (± 3470, n = 13) in 20 days, and testes gradually decreased in size, indicating continuous spermatogenesis. Sperm cells are long, more than 3 mm. During copulation, sperm are deposited by phallic ‘wands’ at the base of each spermatheca in a smooth tube followed by a ‘fishnet canal’ at the top of which they accumulate before complete storage. They then pass through a ringed canal, an elbow, and a rigid rod strewn with glands, before reaching the spermathecal reservoir. Females store approximately 680 spermatozoa after one mating in each spermathecal reservoir. Such complex sperm storage organs of females may indicate strong female post‐mating selection, and reflect competition for long and numerous sperm in this species, in which female multiple matings are suspected. Besides its economical interest, BSF is an appealing model for further investigations on sexual selection.

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Section: Discussionmentioning

confidence: 99%

The reproductive tract of the black soldier fly (Hermetia illucens) is highly differentiated and suggests adaptations to sexual selection

Munsch‐Masset,

Labrousse,

Beaugeard

et al. 2023

Entomologia Exp Applicata

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“…Numerous factors influence fruit fly mating, and mating has different effects on fruit flies. For example, mating induces profound changes in female fly behavior, such as increased oviposition, decreased sexual receptivity, and effects on offspring hatching 140 . Bactrocera pyrifoliae undergoes multiple generations of inbreeding, and offspring hatching might be inhibited 141 .…”

Section: Tephritidae Reproductive Processesmentioning

confidence: 99%

Reproductive behavior of fruit flies: courtship, mating, and oviposition

Li,

Cai

et al. 2023

Pest Management Science

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Many species of the Tephritidae family are invasive and cause huge damage to agriculture and horticulture, owing to their reproductive characteristics. In this review, we have summarized the existing studies on the reproductive behavior of Tephritidae, particularly those regarding the genes and external factors that are associated with courtship, mating, and oviposition. Furthermore, we outline the issues that still need to be addressed in fruit fly reproduction research. The review highlights the implications for understanding the reproductive behavior of fruit flies and discusses methods for their integrated management and biological control.This article is protected by copyright. All rights reserved.

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“…Recently, Pogue et al (2022)have shown that female mating propensity reduces over time [59]: with an average of 75% females C.capitata re-mating a second time but only less than 25% performing successive re-mating. The litterature on medfly remating varies with studies and the global picture is not yet complete, as reviewed by Pérez-Staple & Abraham [60]. Here, we've chosen to estimate the parameters δ and δ S based on the values reported from laboratory experiments by [30,Table 1].…”

Section: Parameterization and Simulationsmentioning

confidence: 99%

On the impact of re-mating and residual fertility on the Sterile Insect Technique efficacy: case study with the medfly, Ceratitis capitata

DUMONT,

OLIVA

2023

Preprint

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Sterile insect techniques can be an efficient solution for reducing or eliminating certain insect pest populations. It is widely and efficiently used in agriculture against fruit flies, including the Mediterranean fly, Ceratitis capitata. The re-mating tendency of medfly females and the fact that sterile males are often released with slight residual fertility can at first sight appear to be detrimental for the successful implementation of SIT. Obtaining the right balance between sterility level and male quality is the key to a cost-efficient program. Since field experimental approaches can be impacted by many environmental variables, it is difficult to get a clear understanding on how some specific parameters can affect, alone or in combination, the efficacy of sterile males release. The use of models not only helps to gather knowledge, but it also helps simulating different situations scenarii and can be easily adapted to local values from the field population and sterile male production. In this study, we consider how the minimal release ratio is affected by female re-mating rate (with an equal or higher tendency to re-mating after an insemination by a sterile male) and male residual fertility. Different scenarios were explored: continuous versus periodic releases, with and without ginger aromatherapy, which is known to enhance sterile male competitiveness. Parameters values were chosen from the literature on peach host fruit when available to reflect what could be expected in the Corsican context, for which SIT against the medfly is under consideration. Our results clearly show that low residual fertility is not necessarily detrimental to SIT performance. In contrast, re-mating of wild females provides contrasting results: when re-mating occurs without a change in the refractory period, it is beneficial because it requires the releases of less sterile males. On the other hand, if females mated with a sterile male have a faster re-mating, it is detrimental for the SIT program as the amount of sterile males to release can become too large. We also confirmed that the use of ginger aromatherapy is more than an essential step for SIT success against medfly. Our model can be easily adapted to different context and species, in order to help understanding release strategies and guiding decision making.

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Postcopulatory Behavior of Tephritid Flies

Cited by 14 publications

References 157 publications

The reproductive tract of the black soldier fly (Hermetia illucens) is highly differentiated and suggests adaptations to sexual selection

The reproductive tract of the black soldier fly (Hermetia illucens) is highly differentiated and suggests adaptations to sexual selection

Reproductive behavior of fruit flies: courtship, mating, and oviposition

On the impact of re-mating and residual fertility on the Sterile Insect Technique efficacy: case study with the medfly, Ceratitis capitata

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