Innate preference hierarchies coupled with adult experience, rather than larval imprinting or transgenerational acclimation, determine host plant use in <i>Pieris rapae</i>

Petrén, Hampus; Gloder, Gabriele; Posledovich, Diana; Wiklund, Christer; Friberg, Magne

doi:10.1002/ece3.7018

Cited by 6 publications

(3 citation statements)

References 71 publications

(132 reference statements)

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“…Experience during the juvenile stage can affect adult behavior and host selection [74]. A number of studies with Helicoverpa armigera and Spodoptera littoralis suggest larval experience of host plants can affect host plant choice in adults, with the plant experienced during the immature stage being favored in female oviposition [75][76][77][78] but this is not always the case [79][80][81][82]. Since in our experiment the change in preference towards the initially non-preferred plant took at least 4 generation it suggests selection, but we cannot rule out gene expression.…”

Section: Discussionmentioning

confidence: 99%

Behavioral and Physiological Plasticity Provides Insights into Molecular Based Adaptation Mechanism to Strain Shift in Spodoptera frugiperda

Hafeez

Ullah

et al. 2021

IJMS

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How herbivorous insects adapt to host plants is a key question in ecological and evolutionary biology. The fall armyworm, (FAW) Spodoptera frugiperda (J.E. Smith), although polyphagous and a major pest on various crops, has been reported to have a rice and corn (maize) feeding strain in its native range in the Americas. The species is highly invasive and has recently established in China. We compared behavioral changes in larvae and adults of a corn population (Corn) when selected on rice (Rice) and the molecular basis of these adaptational changes in midgut and antennae based on a comparative transcriptome analysis. Larvae of S. frugiperda reared on rice plants continuously for 20 generations exhibited strong feeding preference for with higher larval performance and pupal weight on rice than on maize plants. Similarly, females from the rice selected population laid significantly more eggs on rice as compared to females from maize population. The most highly expressed DEGs were shown in the midgut of Rice vs. Corn. A total of 6430 DEGs were identified between the populations mostly in genes related to digestion and detoxification. These results suggest that potential adaptations for feeding on rice crops, may contribute to the current rapid spread of fall armyworm on rice crops in China and potentially elsewhere. Consistently, highly expressed DEGs were also shown in antennae; a total of 5125 differentially expressed genes (DEGs) s were identified related to the expansions of major chemosensory genes family in Rice compared to the Corn feeding population. These results not only provide valuable insight into the molecular mechanisms in host plants adaptation of S. frugiperda but may provide new gene targets for the management of this pest.

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Section: Discussionmentioning

confidence: 99%

Behavioral and Physiological Plasticity Provides Insights into Molecular Based Adaptation Mechanism to Strain Shift in Spodoptera frugiperda

Hafeez

Ullah

et al. 2021

IJMS

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“…pupal weight and wing size) when parent and offspring diets match . However, in another study, P. rapae, were unable to transgenerationally acclimatize its offspring when parent and offspring were reared on similar plant species (Petrén et al 2021). This could infer that different populations of insects react differently, or that transgenerational acclimatization could act on within-species variation in terms of nutrition.…”

Section: Transgenerational Phenotypic Plasticitymentioning

confidence: 97%

“…In insects, with an emphasis on Lepidopterans, it has been suggested that their ability to express WGP should favour TGP . In herbivorous insects, specifically in individuals that use WGP for host-plant choice, the increased chance of a matching parentoffspring environment could favour the ability to transgenerationally acclimatize the offspring to the environment experienced by the parent Petrén et al 2021). This would link the two types of plasticity, emphasising the importance of WGP for TGP .…”

Section: Behavioural Plasticity As a Facilitator For Transgenerationa...mentioning

confidence: 99%

Finding the right one : Host-plant choice and its transgenerational influence on behaviour and life-history traits in Spodoptera littoralis

Rösvik

2023

Acta Universitatis Agriculturae Sueciae

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Herbivorous insects have an intricate relationship with their host plants, which they use as food, oviposition substrate, as well as a rendezvous site for mating. For generalist herbivorous insects that have a wide host range, finding a suitable host plant in a complex environment is of great importance for their offspring’s development and survival. Most herbivorous insects use olfactory cues for host-plant location, where changes in odour profiles of plants due to extrinsic factors from both biotic and abiotic stressors must be taken into consideration when locating a suitable host. Several generalist insects are known to use odour cues experienced during their larval development to facilitate hostplant location in the adult stage, even if they undergo complete metamorphosis between the two developmental stages. This may funnel individuals onto a particular plant species, increasing the chances of their offspring ending up in a matching environment to that of the parent. The use of previous experience is thought to facilitate transgenerational acclimatization, where parents acclimatize their offspring to the environment that they experienced. This thesis investigates how herbivory influences host-plant choice in the generalist moth Spodoptera littoralis (paper I) and the transgenerational impact of plant choice on preference and life-history traits (papers II and III). I found that herbivory by conspecifics influenced host-plant location and preference hierarchies of S. littoralis in a sex-specific manner where the odours released from damaged plants were driving the behavioural shifts. Furthermore, I found that (previous) parental experience does not influence host-plant location in neonate larval or adult females, but that host-plant choice relies on innate preference hierarchies and withingenerational phenotypic plasticity. Moreover, I demonstrated how transgenerational acclimatization could influence developmental traits while reproductive output shows no signs of transgenerational acclimatization but rather the opposite. Thus, the use of previous experience may be a way to facilitate host-plant location in adult individuals, which comes at the expense of the reproductive output of their offspring. The findings in this thesis emphasize the complexity of host-plant choice in generalist insects and the influence the plant community have on behaviour and life-history traits within- and across-generations.

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Preference and performance in an herbivorous coccinellid beetle: a comparative study of host plant defensive traits, insect preference, and survival

Burgueño,

Amorós,

Deagosto

et al. 2023

Arthropod-Plant Interactions

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Innate preference hierarchies coupled with adult experience, rather than larval imprinting or transgenerational acclimation, determine host plant use in Pieris rapae

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 6 publications

References 71 publications

Behavioral and Physiological Plasticity Provides Insights into Molecular Based Adaptation Mechanism to Strain Shift in Spodoptera frugiperda

Behavioral and Physiological Plasticity Provides Insights into Molecular Based Adaptation Mechanism to Strain Shift in Spodoptera frugiperda

Finding the right one : Host-plant choice and its transgenerational influence on behaviour and life-history traits in Spodoptera littoralis

Preference and performance in an herbivorous coccinellid beetle: a comparative study of host plant defensive traits, insect preference, and survival

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