文献类型: 外文期刊
作者: Shen Jun;Wan Hu;Zhang Shuzhen;Zhu Xun;Li Dongyang;Li Jianhong
作者机构:
关键词: Plutella xylostella; Metaflumizone; Fitness costs; Inheritance
期刊名称: PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
ISSN: 0048-3575
年卷期: 2017 年 139 卷
页码:
收录情况: JCR(2021版)
摘要: The diamondback moth, Plutella xylostella (L.) has developed resistance to many types of insecticides in the field. To study inheritance and fitness cost of metaflumizone resistance, a susceptible strain of diamondback moth was continuously selected with metaflumizone during 37 generations under laboratory conditions. The resistance to metaflumizone was at a high level (resistance ratios from 250.37 to 1450.47-fold). We investigated a metaflumizone resistance strain (G(27)) and a susceptible strain of P. xylostella, using the age-stage, two-sex life table approach. Compared to the susceptible strain, egg duration, the developmental time of the first and second instar larvae, pupae duration, adult preoviposition period (APOP), total preoviposition period (TPOP), egg hatch-ability, the survival rate of second instar larva and the mean generation time (T) were significantly differences in the resistant strain. The resistant strain had a relative fitness of 0.78. The inheritance of metaflumizone resistance was also studied by crossing the metaflumizone resistant and susceptible populations. Results revealed an autosomal and incompletely recessive mode of inheritance for metaflumizone resistance in the resistant population of P. xylostella. The present study provided useful information for planning potential management strategies to delay development of metaflumizone resistance in P. xylostella. (C) 2017 Elsevier Inc. All rights reserved.
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