4.6 Article

Identification of potential mechanosensitive ion channels involved in texture discrimination duringDrosophila suzukiiegg-laying behaviour

期刊

INSECT MOLECULAR BIOLOGY
卷 29, 期 5, 页码 444-451

出版社

WILEY
DOI: 10.1111/imb.12654

关键词

Drosophila suzukii; mechanosensitive ion channel; ovipositor; egg-laying behaviour; oviposition preference; transcriptome sequencing

资金

  1. National Natural Science Foundation of China [31802019]
  2. Zhejiang Provincial Fund for Distinguished Young Scholars [LR19C140002]
  3. Fundamental Research Funds for the Zhejiang Provincial Universities [2019XZZX003-12]

向作者/读者索取更多资源

Drosophila suzukii(spotted wing drosophila) has become a major invasive insect pest of soft fruits in the America and Europe, causing severe yield losses every year. The femaleD. suzukiishows the oviposition preference for ripening or ripe fruit by cutting the hard skin with its serrated ovipositor. A recent study reported that mechanosensation is involved in the texture discrimination during egg-laying behaviour inD. suzukii. However, the underlying mechanism and molecular entity that control this behaviour are not known. The transient receptor potential (TRP) channels and degenerin/epithelial sodium channels (DEG/ENaC) are two candidate gene families of mechanically activated ion channels. Thus, we first identified TRP and DEG/ENaC genes inD. suzukiiby bioinformatic analysis. Using transcriptome sequencing, we found that many TRP genes were expressed in the ovipositor in bothD. suzukiiandD. melanogaster, while some DEG/ENaCs showed species-specific expression patterns. Exposure to drugs targeting TRP and DEG/ENaC channels abolished the oviposition preference for harder texture in femaleD. suzukii. Therefore, mechanosensitive ion channels may play significant roles in the texture assessment of egg-laying behaviour inD. suzukii, which has promising implications to further research on the development of novel control measures.

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