A novel reference dated phylogeny for the genus Spodoptera Guenée (Lepidoptera: Noctuidae: Noctuinae): new insights into the evolution of a pest-rich genus

Kergoat, Gaël J.; Goldstein, Paul Z.; Rü, Bruno Le; Meagher, Robert L.; Zilli, Alberto; Mitchell, Andrew; Clamens, Anne‐Laure; Gimenez, Sylvie; Barbut, Jérôme; Nègre, Nicolas; d’Alençon, Emmanuelle; Nam, Kiwoong

doi:10.1016/j.ympev.2021.107161

Cited by 42 publications

(48 citation statements)

References 111 publications

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“…To test whether silica NPs can attract predators via plant (soybean) volatiles induced by the cotton leafworm, we performed the following choice test. Spodoptera litura , closely related to S. littoralis 68 was used in this experiment because S. littoralis was unavailable in Japan where the experiment took place.…”

Section: Methodsmentioning

confidence: 99%

Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Thabet

Boraei

Galal

et al. 2021

Sci Rep

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The agricultural use of silica (SiO2) nanoparticles (NPs) has the potential to control insect pests while the safety and tritrophic effects on plants and beneficial natural enemies remains unknown. Here, we evaluate the effects of silica NPs on insect pests with different feeding niches, natural enemies, and a plant. Silica NPs were applied at different concentrations (75–425 mg/L) on field-cultivated faba bean and soybean for two growing seasons. The faba bean pests, the cowpea aphid Aphis craccivora and the American serpentine leafminer Liriomyza trifolii, and the soybean pest, the cotton leafworm Spodoptera littoralis, were monitored along with their associated predators. Additional laboratory experiments were performed to test the effects of silica NPs on the growth of faba bean seedlings and to determine whether the rove beetle Paederus fuscipes is attracted to cotton leafworm-infested soybean treated with silica NPs. In the field experiments, silica NPs reduced the populations of all three insect pests and their associated predators, including rove beetles, as the concentration of silica NPs increased. In soybean fields, however, the total number of predators initially increased after applying the lowest concentration. An olfactometer-based choice test found that rove beetles were more likely to move towards an herbivore-infested plant treated with silica NPs than to a water-treated control, suggesting that silica NPs enhance the attraction of natural enemies via herbivore-induced plant volatiles. In the laboratory, while silica NPs inhibited the development of faba bean roots at 400 mg/L, they did not affect germination percentage, germination time, shoot length, or vigor index compared to the control.

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Section: Methodsmentioning

confidence: 99%

Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Thabet

Boraei

Galal

et al. 2021

Sci Rep

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“…They form a head to tail tandem between CYP9A58 and CYP9A25 and they replace CYP9A24. The GR29 family is specific to Spodoptera and based on the evolutionary history of S. litura and S. littoralis [29], we expect GR genes to be present in the CYP9 cluster of S. littoralis. The mechanisms resulting in blooming in the CYP9A family in the Spodoptera complex still remain to be deciphered.…”

Section: Phylogeny Of Cyp9amentioning

confidence: 99%

Resistance in the Genus Spodoptera: Key Insect Detoxification Genes

Hilliou

Chertemps

Maı̈bèche

et al. 2021

Insects

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The genus Spodoptera (Lepidoptera: Noctuidae) includes species that are among the most important crop pests in the world. These polyphagous species are able to feed on many plants, including corn, rice and cotton. In addition to their ability to adapt to toxic compounds produced by plants, they have developed resistance to the chemical insecticides used for their control. One of the main mechanisms developed by insects to become resistant involves detoxification enzymes. In this review, we illustrate some examples of the role of major families of detoxification enzymes such as cytochromes P450, carboxyl/cholinesterases, glutathione S-transferases (GST) and transporters such as ATP-binding cassette (ABC) transporters in insecticide resistance. We compare available data for four species, Spodoptera exigua, S. frugiperda, S. littoralis and S. litura. Molecular mechanisms underlying the involvement of these genes in resistance will be described, including the duplication of the CYP9A cluster, over-expression of GST epsilon or point mutations in acetylcholinesterase and ABCC2. This review is not intended to be exhaustive but to highlight the key roles of certain genes.

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“…Phylogenomic analysis correctly placed S. exigua within the Spodoptera clade and as the sister-group to the clade containing S. litura and S. frugiperda (Figure 4) (Kergoat et al, 2021;Le Ru et al, 2018). In addition, the inferred species relationships within Lepidoptera were in agreement with previous findings (Kawahara et al, 2019).…”

Section: Lepidopteran Phylogenomics and Detoxification Gene Content Evolutionmentioning

confidence: 91%

To pest, or not to pest: comparative transcriptomics and genomics towards an understanding of polyphagous pest Noctuidae

Breeschoten

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ʻpest-cladeʼ FIGURE 2 | Phylogenetic placement of the cutworm moths, Noctuidae, within the Lepidoptera (adjusted from Kawahara et al. (2019)). Phylogeny of the Noctuidae (adjusted from Regier et al. (2017)), with an indication of the 'pest-clade'. Further, placement of the five cutworm moths studied in Chapter 3 of this thesis are indicated: the cabbage looper (Trichoplusia ni), the silver-Y moth (Autographa gamma), the cabbage moth (Mamestra brassicae), the African cotton leafworm (Spodoptera littoralis; not shown) and the beet armyworm (Spodoptera exigua; larvae and adult). Photo credits:

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A novel reference dated phylogeny for the genus Spodoptera Guenée (Lepidoptera: Noctuidae: Noctuinae): new insights into the evolution of a pest-rich genus

Cited by 42 publications

References 111 publications

Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Resistance in the Genus Spodoptera: Key Insect Detoxification Genes

To pest, or not to pest: comparative transcriptomics and genomics towards an understanding of polyphagous pest Noctuidae

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