Seasonal proportion change of ryanodine receptor mutation (G4946E) in diamondback moth populations

Itagaki, Yuki; Sonoda, Shoji

doi:10.1584/jpestics.d17-033

Cited by 7 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2017, the proportion of G4946E increased from spring to summer and then decreased toward autumn at both study sites, as observed in 2015 and 2016 15) (Fig. 1).…”

Section: Trap Catches and Seasonal Proportion Changes In G4946e And Isupporting

confidence: 70%

“…In contrast, the proportions of G4946E in P. xylostella populations in some prefectures in Japan were estimated to be greater than the threshold (40%). 15,16) In fact, the detectable proportion of G4946E was found during the survey period at both study sites 15) (Fig. 1).…”

Section: Discussionmentioning

confidence: 83%

“…They decreased considerably in August at both sites in 2015-2018, as reported by Itagaki and Sonoda. 15) The decreased trap catches at both study sites persisted until the following spring, with the exception of a second small peak in trap catches in 2017 (Fig. 1).…”

Section: Trap Catches and Seasonal Proportion Changes In G4946e And Imentioning

confidence: 82%

“…Trap catches and seasonal proportion changes in G4946E, including data reported by Itagaki and Sonoda,15) are presented in Fig. 1 and Table S1.…”

Section: Trap Catches and Seasonal Proportion Changes In G4946e And Imentioning

confidence: 99%

“…We examined seasonal proportion changes of G4946E in P. xylostella populations using quantitative sequencing (QS). 15) For this study, we first show the proportion changes in G4946E and I4790K in field populations under no selection with diamides, followed by cyantraniliprole application. Later, we examine biotic performances represented by hatchability, developmental period, and fecundity using diamide-resistant P. xylostella strains with either G4946E or I4790K.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Field survey of ryanodine receptor mutations (G4946E and I4790K) and their effects on biotic performance in the diamondback moth

et al. 2020

Self Cite

View full text Add to dashboard Cite

This study examined changes in the proportions of ryanodine receptor mutations (G4946E and I4790K) for Plutella xylostella populations in the field. Results show that the proportion of G4946E decreased during the survey years without diamide application and that insects with I4790K were observed less frequently during the survey period. This study also examined the biotic performances of diamide-resistant P. xylostella strains. The results show that the diamide-resistant strains exhibited hatchability, larval development, and fecundity equivalent to those of diamide-susceptible strains.

show abstract

“…In 2017, the proportion of G4946E increased from spring to summer and then decreased toward autumn at both study sites, as observed in 2015 and 2016 15) (Fig. 1).…”

Section: Trap Catches and Seasonal Proportion Changes In G4946e And Isupporting

confidence: 70%

Section: Discussionmentioning

confidence: 83%

Section: Trap Catches and Seasonal Proportion Changes In G4946e And Imentioning

confidence: 82%

“…Trap catches and seasonal proportion changes in G4946E, including data reported by Itagaki and Sonoda,15) are presented in Fig. 1 and Table S1.…”

Section: Trap Catches and Seasonal Proportion Changes In G4946e And Imentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Field survey of ryanodine receptor mutations (G4946E and I4790K) and their effects on biotic performance in the diamondback moth

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

Origin, selection, and spread of diamide insecticide resistance allele in field populations of diamondback moth in east and southeast Asia

Uesugi

Jouraku

Pattalung³

et al. 2020

Pest Management Science

Self Cite

View full text Add to dashboard Cite

BACKGROUND: The investigation of molecular mechanisms and evolution of resistance to insecticides is an ongoing challenge, as researchers must provide guidance to manage the resistance to achieve sustainable production in agriculture. Predicting, monitoring, and managing insecticide resistance requires information on the origins, selection, and spread of resistance genes. The resistance of Plutella xylostella (L.) against diamide insecticides is becoming an increasingly severe problem in east and southeast Asia. In this study, the evolution of resistance was investigated using a resistance allele [ryanodine receptor (RyR); G4946E mutation] and its flanking regions, as well as mitochondrial cytochrome c oxidase subunit I (mtCOI). RESULTS: The sequences of the flanking region of the G4946E and mtCOI suggested that the G4946E mutation has a key role in resistance. Furthermore, the G4946E mutation has multiple origins, and congenic resistant mutations have spread across east and southeast Asia, despite substantial geographical barriers. In addition, the susceptibility of field populations partially recovered during winter, based on the observed decrease in the G4946E (resistant allele) frequency. Finally, the resistance level indexed by the frequency of the E4946 allele was significantly lower in non-overwintering regions than in overwintering regions. CONCLUSION: The information of the present study is useful to monitor resistance using molecular markers and to develop strategies to delay the evolution of diamide resistance.

show abstract

A comprehensive assessment of insecticide resistance mutations in source and immigrant populations of the diamondback moth Plutella xylostella (L.)

Shen

Cao

Chen

et al. 2022

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND The diamondback moth (DBM) Plutella xylostella has developed resistance to almost all insecticides used to control it. Populations of DBM in temperate regions mainly migrate from annual breeding areas. However, the distribution pattern of insecticide resistance of DBM within the context of long‐distance migration remains unclear. RESULTS In this study, we examined the frequency of 14 resistance mutations for 52 populations of DBM collected in 2010, 2011, 2017 and 2018 across China using a high‐throughput KASP genotyping method. Mutations L1041F and T929I conferring pyrethroid resistance, and mutations G4946E and E1338D conferring chlorantraniliprole resistance were near fixation in most populations, whereas resistant alleles of F1020S, M918I, A309V and F1845Y were uncommon or absent in most populations. Resistance allele frequencies were relatively stable among different years, although the frequency of two mutations decreased. Principal component analysis based on resistant allele frequencies separated a southern population as an outlier, whereas the immigrants clustered with other populations, congruent with the migration pattern of northern immigrants coming from the Sichuan area of southwestern China. Most resistant mutations deviated from Hardy–Weinberg equilibrium due to a lower than expected frequency of heterozygotes. The deviation index of heterozygosity for resistant alleles was significantly higher than the index obtained from single nucleotide polymorphisms across the genome. These findings suggest heterogeneous selection pressures on resistant mutations. CONCLUSION Our results provide a picture of resistant mutation patterns in DBM shaped by insecticide usage and migration of this pest, and highlight the widespread distribution of resistance alleles in DBM. © 2022 Society of Chemical Industry.

show abstract

Seasonal proportion change of ryanodine receptor mutation (G4946E) in diamondback moth populations

Cited by 7 publications

References 15 publications

Field survey of ryanodine receptor mutations (G4946E and I4790K) and their effects on biotic performance in the diamondback moth

Field survey of ryanodine receptor mutations (G4946E and I4790K) and their effects on biotic performance in the diamondback moth

Origin, selection, and spread of diamide insecticide resistance allele in field populations of diamondback moth in east and southeast Asia

A comprehensive assessment of insecticide resistance mutations in source and immigrant populations of the diamondback moth Plutella xylostella (L.)

Contact Info

Product

Resources

About