Taxonomic and ecological study of parthenogenesis leafhoppers

• Project/Area Number: 16K07626
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plant protection science
• Research Institution: Kyushu University
• Principal Investigator: Kamitani Satoshi 九州大学, 農学研究院, 准教授 (80274520)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 産雌性単為生殖 / 農業害虫 / 共生細菌 / 倍数性 / 生殖様式 / 単為生殖 / parthenogenesis / ヒメヨコバイ / Typhlocybinae / ボルバキア / Wolbachia / アオズキンヨコバイ / ヨコバイ

Outline of Final Research Achievements

No males of thyphlocybine leafhopper from Okinawa Island have been collected, although many field surveys were performed. Therefore, it might be parthenogenesis. The taxonomic position of this leafhopper was identified as the genus Diomma or Kusala. But, the important taxonomic character, male genitalia, is unknown. It was collected from Trema orientalis (Cannabaceae). As it could not rear on this tree, the host plant is another one.

Academic Significance and Societal Importance of the Research Achievements

共生細菌による昆虫の単為生殖化は、おもに半数性の寄生蜂やアザミウマで知られている。しかし、日本から発見されたヨコバイは、倍数性であるにもかかわらず共生細菌によって単為生殖化していることが明らかになった。このような現象は世界でも極めて稀である。生殖様式の変化は、農業害虫もしくは天敵に大きな影響を及ぼすため、基礎的な研究は非常に重要である。

Research Products

• [Journal Article] New genus of dikraneurine leafhopper (Hemiptera: Cicadellidae: Typhlocybinae) from Japan, with description of two new species (2019)
  • Author(s): Ohara, N., Hayashi, M., Kamitani, S.
  • Journal Title: Zootaxa Volume: 4629 Issue: 2 Pages: 271-279
  • DOI: 10.11646/zootaxa.4629.2.9
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] First record of the alien bamboo leafhopper, Branchana xanthota, in Japan (Hemiptera: Cicadellidae: Deltocephalinae) (2018)
  • Author(s): SATOSHI KAMITANI
  • Journal Title: Zootaxa Volume: 4508 Issue: 4 Pages: 579-581
  • DOI: 10.11646/zootaxa.4508.4.7
  • Peer Reviewed
• [Presentation] 中国の半翅目 (2018)
  • Author(s): 紙谷聡志
  • Organizer: 日本半翅類学会
  • Invited
• [Presentation] 日本産ヨコバイ族の分類学的再検討（カメムシ目：ヨコバイ科） (2017)
  • Author(s): 紙谷聡志
  • Organizer: 日本昆虫学会第77回大会
• [Presentation] Relationship between parthenogenetic leafhopper, Arboridia okamotonis, and Wolbachia Parthenogenesis of leafhopper, Arboridia okamotonis, caused by Wolbachia ? (2016)
  • Author(s): Kurahashi T, Kumashiro S, Kamitani S and Ohara N
  • Organizer: International Congress of Entomology 2016
  • Place of Presentation: Florida, USA
  • Int'l Joint Research