High-Sucrose Diet Exposure on Larvae Contributes to Adult Fecundity and Insecticide Tolerance in the Oriental Fruit Fly, Bactrocera dorsalis (Hendel)

被引:6
作者
Wang, Lei [1 ]
Wei, Dan-Dan [1 ,2 ]
Wang, Gui-Qiang [1 ]
Huang, Han-Qin [1 ]
Wang, Jin-Jun [1 ,2 ]
机构
[1] Southwest Univ, Coll Plant Protect, Key Lab Entomol & Pest Control Engn, Chongqing 400715, Peoples R China
[2] Southwest Univ, Acad Agr Sci, Key Lab Agr Biosafety & Green Prod Upper Yangtze R, Minist Educ, Chongqing 400716, Peoples R China
关键词
Tephritidae; life history traits; transcriptome; gene expression; plasticity; DROSOPHILA-MELANOGASTER; AEDES-AEGYPTI; LIFE-SPAN; BIOSYNTHESIS; RESTRICTION; PROTECTION; RESPONSES; RECEPTOR; GENES;
D O I
10.3390/insects14050407
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) is one of the broad host ranges and economically-important insect pests in tropical and subtropical areas. A wide range of hosts means they have strong adaptation ability to changes in dietary macronutrients (e.g., sucrose and protein). However, the effects of dietary conditions on the phenotypes and genotypes of B. dorsalis are still unclear. In this study, we aimed to investigate the effects of larval dietary sucrose on the life history traits and stress tolerance of B. dorsalis, and its defense response at the molecular level. The results showed that low-sucrose (LS) induced decreased body size, shortened developmental duration, and enhanced sensitivity to beta-cypermethrin. Otherwise, high-sucrose (HS) diet increased developmental duration, adult fecundity, and tolerance to malathion. Based on transcriptome data, 258 and 904 differentially expressed genes (DEGs) were identified in the NS (control) versus LS groups, and NS versus HS groups, respectively. These yielded DEGs were relevant to multiple specific metabolisms, hormone synthesis and signaling, and immune-related pathways. Our study will provide biological and molecular perspective to understand phenotypic adjustments to diets and the strong host adaptability in oriental fruit flies.
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页数:12
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