Differences in male Aedes aegypti and Aedes albopictus hearing systems facilitate recognition of conspecific female flight tones

Loh, YuMin M.; Xu, Yifeng Y.J.; Lee, Tai-Ting; Ohashi, Takuro S.; Zhang, Yixiao D.; Eberl, Daniel F.; Su, Matthew P.; Kamikouchi, Azusa

doi:10.1016/j.isci.2024.110264

Cited by 2 publications

(2 citation statements)

References 71 publications

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“…Furthermore, male (but not female) mosquitoes can demonstrate large amplitude, seemingly mono-frequent flagellar oscillations referred to as self-sustained oscillations (SSOs). SSOs entrain only to pure tones close to female WBFs 9 , suggesting that SSOs in males play a key role in the acoustic processing of female flight tones.Investigating this acoustic processing is made more complicated by differences in the peak sensitivity of electrical responses recorded from the axon bundle of male JO neurons (referred to as electrical tuning) to the aforementioned mechanical tuning of the flagellum 32,33 . This mismatch has led researchers to suggest that male JO neurons respond most sensitively not to female flight tones, but to non-linear phantom tones resulting from interactions between male and female WBFs, referred to as distortion products (DPs) 9,22,27 .…”

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confidence: 99%

“…Investigating this acoustic processing is made more complicated by differences in the peak sensitivity of electrical responses recorded from the axon bundle of male JO neurons (referred to as electrical tuning) to the aforementioned mechanical tuning of the flagellum 32,33 . This mismatch has led researchers to suggest that male JO neurons respond most sensitively not to female flight tones, but to non-linear phantom tones resulting from interactions between male and female WBFs, referred to as distortion products (DPs) 9,22,27 .…”

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confidence: 99%

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Sexually dimorphic auditory representation inAedes aegyptibrains

Ohashi,

Xu,

Shigaki

et al. 2024

Preprint

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Male attraction to female flight sounds is a vital, reproducible component of courtship in many species of mosquitoes; however, female acoustic behaviours have proven challenging to define. To investigate sexual dimorphisms in acoustic behaviours, previous reports have largely focused on differences in mosquito peripheral ear anatomy and function. Whilst molecular investigations have recently begun on the auditory periphery, sexual dimorphisms in central processing of acoustic information have not yet been explored. Here we used a combination of neurotracing, calcium imaging and molecular analyses to examine sexual dimorphisms in auditory processing in the yellow fever mosquitoAedes aegypti. We identified shared and dimorphic neurons connecting male and female ears to the primary auditory processing centre in the brain, and defined multiple distinct neuronal clusters based on responses to auditory stimulation. We finally used transcriptomic and proteomic analyses to investigate the molecular factors underlying these differences, with motile ciliary-related terms significantly enriched in males.

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Sexually dimorphic auditory representation inAedes aegyptibrains

Ohashi,

Xu,

Shigaki

et al. 2024

Preprint

Self Cite

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MACSFeD—a database of mosquito acoustic communication and swarming features

Loh,

Su,

Haruni

et al. 2024

Database

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Acoustic communication plays an important role during the courtship of many mosquito species. Male mosquitoes show strong attraction to female wing beat frequencies, mediated via spectral matching between female wing beat frequency and male ear mechanical tuning frequency. Such acoustic communication typically occurs within swarms, male-dominated aggregations with species-specific properties. Despite hundreds of relevant publications being available, the lack of a central platform hosting all associated data hinders research efforts and limits cross-species comparisons. Here, we introduce MACSFeD (Mosquito Acoustic Communication and Swarming Features Database), an interactive platform for the exploration of our comprehensive database containing 251 unique reports focusing on different aspects of mosquito acoustic communication, including hearing function, wing beat frequency and phonotaxis, as well as male swarming parameters. MACSFeD serves as an easily accessible, efficient, and robust data visualization tool for mosquito acoustic communication research. We envision that further in-depth studies could arise following the use of this new platform. Database URL: https://minmatt.shinyapps.io/MACSFeD/

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Differences in male Aedes aegypti and Aedes albopictus hearing systems facilitate recognition of conspecific female flight tones

Cited by 2 publications

References 71 publications

Sexually dimorphic auditory representation inAedes aegyptibrains

Sexually dimorphic auditory representation inAedes aegyptibrains

MACSFeD—a database of mosquito acoustic communication and swarming features

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