Characterisation, analysis of expression and localisation of the opsin gene repertoire from the perspective of photoperiodism in the aphid Acyrthosiphon pisum

Collantes-Alegre, Jorge Mariano; Mattenberger, Florian; Barberà, Miquel; Martínez‐Torres, David

doi:10.1016/j.jinsphys.2017.11.009

Cited by 40 publications

(42 citation statements)

References 80 publications

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“…In addition, Dc‐UV‐like and Dc‐arthropsin expression levels increase during the night. Similar results have been found for the Ap‐Arthrosin of Acyrthosiphon pisum . However, these two opsins do not participate in photosensing processes .…”

Section: Discussionsupporting

confidence: 86%

“…Among insects, dragonflies were the first reported insect to possess this gene . In aphid, arthropsin was detected in the protocerebrum and optical lobe but not in compound eyes . The results suggest that arthropsin is involved in nonvisual photosensing processes.…”

Section: Discussionmentioning

confidence: 93%

“…Dc‐BW was obtained from the transcriptome data of ACP. Conversely, the medium wavelength (BW) opsin was missing in Acyrthosiphon pisum and Luciola cruciata . A lysine was discovered in the seventh TM, and previous research indicates that it was a conserved sequence .…”

Section: Discussionmentioning

confidence: 96%

“…The QAKKMNV motif was absent in Dc‐UV‐like and Dc‐arthropsin. This motif was also missing in opsins of Acyrthosiphon pisum , including Ap‐AWO1, Ap‐SWO4, Ap‐C‐Ops and Ap‐Arthropsin . Surprisingly, the G‐protein coupled receptor family 1 signature was missing in Dc‐UV because the 146th amino acid was changed.…”

Section: Discussionmentioning

confidence: 99%

“…Visual perception has attracted attention because it is an indispensable component of most organisms and has been investigated in many species, including toads, rats, fish, Drosophila , honeybee, Helicoverpa armigera , cricket and mosquitoes . To adapt to the varying ambient environment caused by the Earth's movements, the circadian clock developed in the evolutionary history of most organisms . The endogenous circadian clock and ambient light are critical factors in opsin expression patterns .…”

Section: Introductionmentioning

confidence: 99%

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The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

Tian

Lin

et al. 2019

Pest Management Science

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BACKGROUND The Asian citrus psyllid (ACP), Diaphorina citri Kuwayama (Hemiptera: Psyllidae), is a prominent pest of citrus because it transmits Candidatus Liberibacter asiaticus associated with huanglongbing. Phototactic behavior ubiquitously exists in insects and plays essential roles in host‐searching and mate‐searching in ACP. However, its mechanism has remained unclear to date. In this paper, molecular assays were performed to understand the relation between opsins and the phototactic behavior of ACP. RESULTS We cloned five opsin genes and analyzed their expression patterns. The main three opsin genes (Dc‐UV, Dc‐BW and Dc‐LW) displayed high expression levels in daytime, and the expression levels of the other two opsin genes (Dc‐UV‐like and Dc‐arthropsin) increased during nighttime. In constant darkness, the expression patterns and levels of opsin genes of ACP were altered. Under starvation, the expression levels of the main three opsins were reduced (53.89–84.10%). In contrast, the expression levels in females increased (27.55–60.58%). Feeding of double‐stranded RNA (Dc‐UV, Dc‐LW or Dc‐BW) have reduced the phototactic efficiency of ACP to ultraviolet light (44.79%), green light (54.81%) and blue light (43.00%), respectively. CONCLUSION The results suggest that the expression levels and patterns of opsins of ACP were influenced by photoperiod and the physiological status of ACP. Our research indicates that opsins play crucial roles in phototactic behavior in ACP. © 2019 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

Tian

Lin

et al. 2019

Pest Management Science

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The circadian and photoperiodic clock of the pea aphid

2023

Self Cite

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The pea aphid, Acyrthosiphon pisum, is a paradigmatic photoperiodic species that exhibits a remarkable annual life cycle, which is tightly coupled to the seasonal changes in day length. During spring and summer, characterised by longer days, aphid populations consist exclusively of viviparous females that reproduce parthenogenetically. When autumn comes and the days shorten, aphids switch their reproductive mode and generate males and oviparous sexual females, which mate and produce cold-resistant eggs that overwinter and survive the unfavourable season. While the photoperiodic responses have been well described, the nature of the timing mechanisms which underlie day length discrimination are still not completely understood. Experiments from the 1960’s suggested that aphids rely on an ‘hourglass’ clock measuring the elapsed time during the dark night by accumulating a biochemical factor, which reaches a critical threshold at a certain night length and triggers the switch in reproduction mode. However, the photoperiodic responses of aphids can also be attributed to a strongly dampened circadian clock. Recent studies have uncovered the molecular components and the location of the circadian clock in the brain of the pea aphid and revealed that it is well connected to the neurohormonal system controlling aphid reproduction. We provide an overview of the putative mechanisms of photoperiodic control in aphids, from the photoreceptors involved in this process to the circadian clock and the neuroendocrine system.

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Photoperiodic time measurement, photoreception, and circadian clocks in insect photoperiodism

Goto

2022

Appl Entomol Zool

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Photoperiodism is an adaptive response used by organisms to assess day length and anticipate upcoming seasons and to coordinate their (or their offspring’s) development and physiology with the environmental changes. These physiological mechanisms have long been studied to understand insect life cycles, combat pests, conserve endangered species, and rear beneficial insects. Recent genetic manipulations have greatly expanded our knowledge of the molecular mechanisms underlying photoperiodism. Here, I review our current knowledge of the physiological and molecular mechanisms underlying photoperiodic time measurement, photoreception, and circadian clocks, which constitute insect photoperiodism modules, with a special emphasis on photoperiodic time measurement models.

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Characterisation, analysis of expression and localisation of the opsin gene repertoire from the perspective of photoperiodism in the aphid Acyrthosiphon pisum

Cited by 40 publications

References 80 publications

The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

The expression and function of opsin genes related to the phototactic behavior of Asian citrus psyllid

The circadian and photoperiodic clock of the pea aphid

Photoperiodic time measurement, photoreception, and circadian clocks in insect photoperiodism

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