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Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Your Position :Home->Past Journals Catalog->2020年57 No.1

Quantitative evaluation of predation based on molecular analysis of gut-content
Author of the article:JU Qian;OUYANG Fang;QIAO Fei;GE Feng
Author's Workplace:State Key Laboratory of Integrated Management of Pest and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100049, China; Shandong Peanut Research Institute, Qingdao 266100, China
Key Words:gut content; Propylea japonica; peanut aphid; biological control
[Objectives]  Protecting and enhancing natural predator communities is an effective strategy for pest suppression in farmland and understanding the trophic structures of predators and food webs in agroecosystems has become a key issue in biological control. [Methods]  The peanut aphid COⅠ gene was used as a marker of peanut aphid predation by by the coccinellid Propylea japonica (Coleoptera: Coccinellidae) and PCR-based gut content analysis was used to measure predation by P. japonica on the peanut aphid. [Results]  Incorporating molecular tools and field studies provided direct evidence of peanut aphid predation by P. japonica and allowed the consumption of this pest by P. japonica to be evaluated under realistic field conditions. [Conclusion]  Molecular gut content analysis can help evaluate the trophic structure of natural predator food webs and thereby inform, and improve, pest control.
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