Distribution, Host Range and Bionomics of Rhopalosiphum nymphaeae (Linnaeus, 1761) a Polyphagous Aphid in Aquatic Vegetables

Halder, Jaydeep; B., A.; Chakrabarti, S.; Dey, Debjani

doi:10.14429/dlsj.5.14403

Cited by 5 publications

(7 citation statements)

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“…The water-lily aphid, Rhopalosiphum nymphaeae , is a globally-distributed generalist herbivore of duckweeds (Halder et al, 2020; Subramanian and Turcotte, 2020, 2023). Aphids are phloem-feeding herbivores that reproduce facultatively parthenogenetically via live birth with a population doubling time of around two days (Hance et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Neopolyploidy-induced changes in the giant duckweed (Spirodela polyrhiza) alter herbivore preference, performance, and plant population performance

Assour,

Ashman,

Turcotte

2023

Preprint

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PremisePolyploidy is a widespread mutational process in angiosperms that may alter population performance of not only plants but also their animal associates. Yet, knowledge of whether ploidy affects plant-herbivore dynamics is scarce. Here, we test whether aphid herbivores exhibit preference for diploid or neopolyploid plants, whether ploidy impacts plant and herbivore performance, and whether these interactions depend on plant genetic background.MethodsUsing multiple pairs of independently synthesized neotetraploid greater duckweed (Spirodela polyrhiza) and their diploid progenitors, we evaluated the effect of neopolyploidy on duckweed’s interaction with the water-lily aphid (Rhopalosiphum nymphaeae). Using two-way choice experiments, we first evaluated feeding preference by the herbivore. We then evaluated the consequences of ploidy on aphid and plant performance by measuring population growth over multiple generations.Key ResultsAphids preferred neopolyploids over diploids when the plants were provided at equal abundances but not when they were provided at equal surface area, indicating the role of plant size in driving this preference. Additionally, neopolyploidy increased aphid population performance, but this result was highly dependent on the genetic lineage of the plant. Lastly, the impact of herbivory on neopolyploids vs. diploid duckweed varied greatly with genetic lineage, but overall, neopolyploids appeared to be generally less tolerant than diploids.ConclusionsWe conclude that polyploidization can impact the preference and performance of herbivores on their plant hosts, whereas plant performance depends on complex interactions between herbivory, ploidy, and genetic lineage. These results have significant implications for the establishment and persistence of plants and herbivores in nature.

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Section: Introductionmentioning

confidence: 99%

Neopolyploidy-induced changes in the giant duckweed (Spirodela polyrhiza) alter herbivore preference, performance, and plant population performance

Assour,

Ashman,

Turcotte

2023

Preprint

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“…In the end, some entomopathogenic fungi e.g., Lecanicillium lecanii (Zimm.) were found to be natural enemies of the water lily aphid [3].…”

Section: Introductionmentioning

confidence: 98%

“…Up until late summer, parthenogenetic apterae and alatae develop on secondary hosts for which they always choose aquatic and semi-aquatic plants [2,3]. Because of overcrowding, competition, and low feeding resources, sexual forms migrate back to their overwinter hosts where they lay eggs [3]. Apterae are brown on the primary host and reddish-brown turning dark olive on the secondary one [1].…”

Section: Introductionmentioning

confidence: 99%

“…Apart from living on aerial plant organs of its secondary hosts, R. nymphaeae can also survive in underwater conditions [3]. It has specialized body hairs that can trap air, enabling it to feed on submerged plant parts [4].…”

Section: Introductionmentioning

confidence: 99%

“…Using their stylets to probe plant sap they select the most suitable host among them and usually concentrate along the petiole, leaf lamina, buds, and flowers of water lilies and lotus. The leaves then become curled and small, often with deposits of honeydew on the leaf surface, which can cause the development of black sooty mould [3]. After colonizing aquatic plants, water lily aphids reproduce quickly and can be very destructive.…”

Section: Introductionmentioning

confidence: 99%

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Secondary Host Plants of Water Lily Aphid, Rhopalosiphum Nymphaeae (Hemiptera: Aphididae) in Serbia

Milenković

Žikić²,

Stanković

et al. 2023

FU Med Biol

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The water lily aphid is a cosmopolitan species that feeds on various plants. Its primary hosts are Prunus species from which they migrate to their secondary hosts – aquatic and semi-aquatic plants. So far, in Serbia, Rhopalosiphum nymphaeae is recorded to attack only three plant species as secondary hosts. In our study, conducted in September 2020, we have researched the association of water lily aphid with secondary hosts in wetland habitats. A total of 44 samples were collected from 16 localities. In addition to the plant species previously reported, in this study 11 secondary hosts are documented for the first time in Serbia. The most common trophic association of R. nymphaeae was with Salvinia natans which was registered in 13 localities. There is a high possibility of finding new records of secondary hosts, therefore, more research is needed to complete the information about the water lily aphid and its hosts in Serbia.

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Neopolyploidy‐induced changes in giant duckweed (Spirodela polyrhiza) alter herbivore preference and performance and plant population performance

Assour,

Ashman,

Turcotte

2024

American J of Botany

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PremisePolyploidy is a widespread mutational process in angiosperms that may alter population performance of not only plants but also their interacting species. Yet, knowledge of whether polyploidy affects plant–herbivore dynamics is scarce. Here, we tested whether aphid herbivores exhibit preference for diploid or neopolyploid plants, whether polyploidy impacts plant and herbivore performance, and whether these interactions depend on the plant genetic background.MethodsUsing independently synthesized neotetraploid strains paired with their diploid progenitors of greater duckweed (Spirodela polyrhiza), we evaluated the effect of neopolyploidy on duckweed's interaction with the water‐lily aphid (Rhopalosiphum nymphaeae). Using paired‐choice experiments, we evaluated feeding preference of the herbivore. We then evaluated the consequences of polyploidy on aphid and plant performance by measuring population growth over multiple generations.ResultsAphids preferred neopolyploids when plants were provided at equal abundances but not at equal surface areas, suggesting the role of plant population surface area in driving this preference. Additionally, neopolyploidy increased aphid population performance, but this result was dependent on the plant's genetic lineage. Lastly, the impact of herbivory on neopolyploid vs. diploid duckweed varied greatly with genetic lineage, where neopolyploids appeared to be variably tolerant compared to diploids, sometimes mirroring the effect on herbivore performance.ConclusionsBy experimentally testing the impacts of polyploidy on trophic species interactions, we showed that polyploidization can impact the preference and performance of herbivores on their plant hosts. These results have significant implications for the establishment and persistence of plants and herbivores in the face of plant polyploidy.

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Distribution, Host Range and Bionomics of Rhopalosiphum nymphaeae (Linnaeus, 1761) a Polyphagous Aphid in Aquatic Vegetables

Cited by 5 publications

References 2 publications

Neopolyploidy-induced changes in the giant duckweed (Spirodela polyrhiza) alter herbivore preference, performance, and plant population performance

Neopolyploidy-induced changes in the giant duckweed (Spirodela polyrhiza) alter herbivore preference, performance, and plant population performance

Secondary Host Plants of Water Lily Aphid, Rhopalosiphum Nymphaeae (Hemiptera: Aphididae) in Serbia

Neopolyploidy‐induced changes in giant duckweed (Spirodela polyrhiza) alter herbivore preference and performance and plant population performance

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