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Inheritance and fitness costs of sulfoxaflor resistance in Nilaparvata lugens (Stål)
Author(s) -
Liao Xun,
Mao Kaikai,
Ali Ehsan,
Jin Ruoheng,
Li Zhao,
Li Wenhao,
Li Jianhong,
Wan Hu
Publication year - 2019
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.5412
Subject(s) - biology , fecundity , strain (injury) , population , toxicology , dominance (genetics) , zoology , veterinary medicine , genetics , gene , demography , medicine , anatomy , sociology
BACKGROUND Sulfoxaflor has been considered as a new tool for Nilaparvata lugens control in the field. In this study, a laboratory‐selected resistant strain and a susceptible strain were used to evaluate the inheritance and fitness costs of sulfoxaflor resistance in N. lugens . RESULTS The resistant strain (SFX‐SEL) showed 123.63‐fold resistance compared with the susceptible strain (SS). Progenies of reciprocal crosses (F 1 RS and F 1 SR) showed similar concentration–mortality responses (LC 50 ) to sulfoxaflor and also exhibited a similar degree of dominance; −0.16 for F 1 RS and −0.26 for F 1 SR. Significant differences between the observed and expected mortalities of F 2 individuals suggested that sulfoxaflor resistance is associated with multiple genes. The resistant strain had a relative fitness of 0.75 with substantially decreased female adult period, oviposition days, total fecundity, egg hatchability and female adult survival rate, and prolonged pre‐adult period and total pre‐oviposition period. CONCLUSION Sulfoxaflor resistance in N. lugens was inherited as autosomal, incompletely recessive and multigene. The development of resistance may have a significant fitness cost for the resistant population. Current research provides valuable information for researchers to establish management strategies to delay the development of sulfoxaflor resistance and control N. lugens sustainably in the field. © 2019 Society of Chemical Industry