Resistance of <i>Nilaparvata lugens</i> (<scp>Hemiptera: Delphacidae</scp>) to triflumezopyrim: inheritance and fitness costs

Qin, Yao; Xu, Pengfei; Jin, Ruoheng; Zhao, Li; Ma, Kangsheng; Wan, Hu; Li, Jianhong

doi:10.1002/ps.6598

Cited by 16 publications

(10 citation statements)

References 44 publications

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“…In our study, the Tri-sel strain was used to determine that triflumezopyrim resistance is inherited as a polygenic, autosomal and incompletely dominant trait. Qin et al 35 found that after 29 generations of successive selection with triflumezopyrim, N. lugens (Hemiptera: Delphacidae) developed 155.23-fold resistance and triflumezopyrim resistance was inherited as an autosomal, polygenic and codominant trait. In this population, the values of the degree of dominance (D) for F 1 RS and F 1 SR were −0.05 and 0.06, respectively.…”

Section: Discussionmentioning

confidence: 99%

Risk assessment and resistance inheritance of triflumezopyrim resistance in Laodelphax striatellus

Zhang

et al. 2022

Pest Management Science

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BACKGROUND: Laodelphax striatellus (Fallén) (Hemiptera: Delphacidae) is one of the most important insect pests of rice, and it has been able to develop strong resistance to many insecticides. Triflumezopyrim, a new type of mesoionic insecticide developed by Corteva Agriscience, showed high biological activity in controlling piercing-sucking insect pests such as planthopper and leafhopper.RESULTS: In this study, we continuously selected a susceptible laboratory stain (Unsel) of L. striatellus for 16 generations by exposing it to triflumezopyrim in the laboratory. A 45.1-fold triflumezopyrim-resistant strain (Tri-sel) was established, in which cross-resistance to nitenpyram and acetamiprid was not detected. The realized heritability (h 2 ) of the Tri-sel strain was estimated at 0.13. The mortalities of the testing F 1 (the offspring of a cross between Unsel and Tri-sel strains) suggested that the resistance of L. striatellus to triflumezopyrim was autosomal and incompletely dominant, as well as a polygenic inheritance. In addition, the results of synergist experiment showed that P450s potentially contributed to the triflumezopyrim resistance. The activities of detoxification enzymes in the Unsel and Tri-sel strains indicated that the activity of P450s in the Tri-sel strain was significantly increased, consistent with the results of synergist experiments. Furthermore, 12 P450 genes demonstrated significant up-regulation. CONCLUSIONS: L. striatellus has a certain risk of resistance to triflumezopyrim after continuous selection. Triflumezopyrim resistance did not result in cross-resistance to neonicotinoid insecticides. The up-regulation of multiple P450 genes may mediate triflumezopyrim resistance in L. striatellus.

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Section: Discussionmentioning

confidence: 99%

Risk assessment and resistance inheritance of triflumezopyrim resistance in Laodelphax striatellus

Zhang

et al. 2022

Pest Management Science

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“…17 It has been reported that there is a fitness cost after the resistance of N. lugens to various insecticides, such as imidacloprid, nitenpyram, sulfoxaflor and triflumezopyrim, and life parameters such as survival rate, fecundity, hatchability, emergence rate, copulation rate of the resistant population were significantly reduced. 26,41,45,46 Our fitness cost study showed the Pym-R 90 and WA2020 strain had obvious disadvantages in their developmental duration, emergence rate and hatchability. It is worth noting that the reduced hatchability of N. lugens resistant to pymetrozine is the main factor contributing to their low fitness.…”

Section: Discussionmentioning

confidence: 87%

“…However, there is also the phenomenon that the fitness of insects increases after they become resistant to a certain insecticide, 44 which is the result of various factors such as the type of insect, insecticide and the environment 17 . It has been reported that there is a fitness cost after the resistance of N. lugens to various insecticides, such as imidacloprid, nitenpyram, sulfoxaflor and triflumezopyrim, and life parameters such as survival rate, fecundity, hatchability, emergence rate, copulation rate of the resistant population were significantly reduced 26, 41, 45, 46 . Our fitness cost study showed the Pym‐R 90 and WA2020 strain had obvious disadvantages in their developmental duration, emergence rate and hatchability.…”

Section: Discussionmentioning

confidence: 99%

Monitoring, cross‐resistance, inheritance, and fitness costs of brown planthoppers, Nilaparvata lugens, resistance to pymetrozine in China

Song

Peng

Wang

et al. 2022

Pest Management Science

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BACKGROUND The brown planthopper, Nilaparvata lugens, is considered the most destructive pest of rice in many Asian countries including China. Use of pymetrozine in insect resistance management (IRM) has been one strategy to control this pest. In this study, we reported the status of pymetrozine resistance in Nilaparvata lugens (Stål) collected from China over the period 2017–2021 and selected a strain of N. lugens resistant to pymetrozine and evaluated the cross‐resistance, inheritance and fitness costs of the resistance. RESULTS Monitoring data (2017–2021) showed that field populations of N. lugens in China developed moderate‐ to high‐level pymetrozine resistance during these 5 years. By continuous selection with pymetrozine in the lab, the pymetrozine selected N. lugens strain (Pym‐R98) developed a 225.2‐fold resistance compared to a susceptible strain. The Pym‐R98 strain showed high cross‐resistance to dinotefuran (66.6‐fold) and low cross‐resistance to nitenpyram (5.2‐fold) and sulfoxaflor (5.8‐fold). Inheritance pattern analysis of Pym‐R93 revealed that resistance to pymetrozine was polygenic, autosomal and incompletely dominant. Fitness costs of pymetrozine resistance were present in Pym‐R90 and WA2020 strains with a relative fitness of 0.72 and 0.60, respectively. The developmental duration of Pym‐R90 and WA2020 was significantly longer and hatchability was significantly lower compared to pymetrozine‐susceptible strain (Pym‐S). CONCLUSIONS N. lugens has developed high level of resistance to pymetrozine. Pymetrozine‐resistance brown planthopper had cross‐resistance with some of neonicotinoids such as dinotefuran, nitenpyram and sulfoxaflor. The autosomal, incompletely dominant and polygenic resistance to pymetrozine in N. lugens and the fitness costs associated with this resistance can be exploited in IRM strategies to preserve the lifetime of pymetrozine for control of N. lugens in China. © 2022 Society of Chemical Industry.

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“…The life-table data for the N. lugens individuals were analyzed using an age-stage, two-sex life-table theory ( Qin et al, 2021 ). Through calculations, the adult pre-oviposition period (APOP), total pre-oviposition period (TPOP), population parameters, and other life-table parameters were obtained.…”

Section: Methodsmentioning

confidence: 99%

Fitness costs of resistance to insecticide pymetrozine combined with antimicrobial zhongshengmycin in Nilaparvata lugens (Stål)

Feng

Wang

et al. 2023

Front. Physiol.

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The brown planthopper, Nilaparvata lugens (Stål), is a major pest of rice crops, and its control is critical for food security. Pymetrozine has been recommended as an alternative to imidacloprid for controlling N. lugens, but the pest has developed high resistance to it, making its prohibition and restriction urgent. To address this issue, we conducted a study using a mixture of pymetrozine and zhongshengmycin with the effective ratio of 1:40, to evaluate the fitness costs in N. lugens. Our results showed that N. lugens had a relative fitness of 0.03 under this ratio, with significantly reduced longevity, female and male adult periods, total pre-oviposition days, and fecundity. Moreover, the expression levels of the uricase gene (EC1.7.3.3) and farnesyl diphosphate farnesyl transferase gene (EC2.5.1.21) were reduced in N. lugens. These genes are involved in urea metabolism and steroid biosynthesis pathway, respectively, and their suppression can interfere with the normal nutritional function of N. lugens. Our study demonstrates that the combination of chemical insecticides and antimicrobials can delay the development of resistance and improve the efficiency of pest control. This information is valuable for researchers developing management strategies to delay the development of pymetrozine resistance in N. lugens.

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Resistance of Nilaparvata lugens (Hemiptera: Delphacidae) to triflumezopyrim: inheritance and fitness costs

Cited by 16 publications

References 44 publications

Risk assessment and resistance inheritance of triflumezopyrim resistance in Laodelphax striatellus

Risk assessment and resistance inheritance of triflumezopyrim resistance in Laodelphax striatellus

Monitoring, cross‐resistance, inheritance, and fitness costs of brown planthoppers, Nilaparvata lugens, resistance to pymetrozine in China

Fitness costs of resistance to insecticide pymetrozine combined with antimicrobial zhongshengmycin in Nilaparvata lugens (Stål)

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