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Behavioral and Physiological Plasticity Provides Insights into Molecular Based Adaptation Mechanism to Strain Shift in Spodoptera frugiperda

文献类型： 外文期刊

作者： Hafeez, Muhammad 1 ; Li, Xiaowei 1 ; Ullah, Farman 3 ; Zhang, Zhijun 1 ; Zhang, Jinming 1 ; Huang, Jun 1 ; Khan, Muham 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

2.Zhejiang Univ, Inst Insect Sci, State Key Lab Rice Biol, Hangzhou 310058, Peoples R China

3.China Agr Univ, Dept Entomol, Coll Plant Protect, Beijing 100193, Peoples R China

4.South China Agr Univ, Key Lab Biopesticide Innovat & Applicat, Guangzhou 510642, Peoples R China

5.Fujian Agr & Forest Univ, State Key Lab Ecol Pest Control Fujian & Taiwan C, Key Lab Biopesticide & Chem Biol, Minist Educ, Fuzhou 350002, Peoples R China

6.Fujian Agr & Forest Univ, Fujian Prov Key Lab Insect Ecol, Coll Plant Protect, Fuzhou 350002, Peoples R China

7.Univ Greenwich, Nat Resources Inst, Chatham ME4 4TB, Kent, England

8.Univ Queensland, Sch Biol Sci, Brisbane, Qld 4072, Australia

关键词： midgut; antennal response; host plants adaptation; molecular mechanism; Spodoptera frugiperda; behavioral response

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.924； 五年影响因子：6.132 ）

ISSN：

年卷期： 2021 年 22 卷 19 期

页码：

收录情况： SCI

摘要： How herbivorous insects adapt to host plants is a key question in ecological and evolutionary biology. The fall armyworm, (FAW) Spodoptera frugiperda (J.E. Smith), although polyphagous and a major pest on various crops, has been reported to have a rice and corn (maize) feeding strain in its native range in the Americas. The species is highly invasive and has recently established in China. We compared behavioral changes in larvae and adults of a corn population (Corn) when selected on rice (Rice) and the molecular basis of these adaptational changes in midgut and antennae based on a comparative transcriptome analysis. Larvae of S. frugiperda reared on rice plants continuously for 20 generations exhibited strong feeding preference for with higher larval performance and pupal weight on rice than on maize plants. Similarly, females from the rice selected population laid significantly more eggs on rice as compared to females from maize population. The most highly expressed DEGs were shown in the midgut of Rice vs. Corn. A total of 6430 DEGs were identified between the populations mostly in genes related to digestion and detoxification. These results suggest that potential adaptations for feeding on rice crops, may contribute to the current rapid spread of fall armyworm on rice crops in China and potentially elsewhere. Consistently, highly expressed DEGs were also shown in antennae; a total of 5125 differentially expressed genes (DEGs) s were identified related to the expansions of major chemosensory genes family in Rice compared to the Corn feeding population. These results not only provide valuable insight into the molecular mechanisms in host plants adaptation of S. frugiperda but may provide new gene targets for the management of this pest.

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