Population dynamics of Japanese male planthoppers canceling the male-killing phenomenon by symbiotic bacteria in the small brown planthopper, Laodelphax striatellus.

• Project/Area Number: 22780048
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Applied entomology
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: SANADA Sachiyo 独立行政法人農業・食品産業技術総合研究機構, 九州沖縄農業研究センター・生産環境研究領域, 主任研究員 (80533140)
• Research Collaborator: NODA Hiroaki 独立行政法人農業生物資源研究所, 昆虫科学研究領域, 特任上級研究員 (40343991)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 細胞内共生細菌 / 性比偏向 / ヒメトビウンカ / スピロプラズマ / ウォルバキ ア / 共生細菌 / ウォルバキア / オス殺し / 不完全変態 / 個体群動態

Research Abstract

Spiroplasma infected in the small brown planthopper causes male-killing and female-biased sex ratio of progenies produced by infected females in Taiwan populations. We performed cross experiments between females of female biased lines and males in various populations from eastern and southern parts of Japan. All of the pairs crossed with males in Kyushu populations produced only female adult progenies. However, some pairs crossed with males in western and eastern Japanese populations produced male progenies at the normal sex ratio. This result suggests that male-killing phenomenon in Spiroplasma is canceled by some of males in the western and eastern Japanese populations.

Research Products

• [Journal Article] Male killing caused by a Spiroplasma symbiont in the small brown planthopper, Laodelphax striatellus (2013)
  • Author(s): Sachiyo Sanada-Morimura, Masaya Matsumura, Hiroaki Noda
  • Journal Title: Journal of Heredity Volume: 104 Issue: 6 Pages: 821-829
  • DOI: 10.1093/jhered/est052
  • Peer Reviewed
• [Presentation] Variation of occurrence of male-killing phenomenon induced by Spiroplasma in the small brown planthopper, Laodelphax striatellus in Japanese populations (2013)
  • Author(s): Sachiyo Sanada-Morimura, Masaya Matsumura, Hiroaki Noda
  • Organizer: the 14th International Auchenorrhyncha Congress(IAC2013)
  • Place of Presentation: 楊凌(中国・陜西省)
  • Year and Date: 2013-07-09
• [Presentation] ヒメトビウンカの共生細菌によるオス殺しを無効化するオスの地理的分布と中国・台湾個体群との関係 (2013)
  • Author(s): 真田幸代、松村正哉、野田博明
  • Organizer: 第57回日本応用動物昆虫学会大会
  • Place of Presentation: 神奈川県藤沢市
  • Year and Date: 2013-03-28
• [Presentation] Sex ratio distortion by a male-killing Spiroplasma in the small brown planthopper, Laodelphax striatellus (2012)
  • Author(s): S. Sanada-Morimura, M. Matsumura, H. Noda
  • Organizer: XXIV International Congress of Entomology
  • Place of Presentation: 大邱・韓国
  • Year and Date: 2012-08-23
• [Presentation] ヒメトビウンカ台湾個体群のスピロプラズマ感染によるメス偏向性比 (2012)
  • Author(s): 真田幸代、松村正哉、野田博明
  • Organizer: 第56回日本応用動物昆虫学会大会
  • Place of Presentation: 奈良県奈良市
  • Year and Date: 2012-03-28
• [Presentation] ヒメトビウンカ台湾個体群のスピロプラズマ感染によるメス偏向性比 (2012)
  • Author(s): 森村幸代
  • Organizer: 第56回日本応用動物昆虫学会大会
  • Place of Presentation: 近畿大学(奈良県)
  • Year and Date: 2012-03-28
• [Presentation] Sex ratio distortion by a male-killing Spiroplasma in the small brown planthopper, Laodelphax striatellus (2012)
  • Author(s): Sachiyo Sanada,Masaya Matsumura,Hiroaki Noda
  • Organizer: XXIV International Congress of Entomology
  • Place of Presentation: 大邱（韓国）
• [Presentation] ヒメトビウンカ終齢幼虫で起こる共生細菌スピロプラズマのオス殺し (2011)
  • Author(s): 真田幸代、松村正哉、野田博明
  • Organizer: 第55回日本応用動物昆虫学会大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-03-26
• [Presentation] Sex ratio distortion by a Spiroplasma symbiont in the small brown planthopper, Laodelphax striatellus (2010)
  • Author(s): S. Sanada-Morimura, M. Matsumura, H. Noda
  • Organizer: 13th Auchenorrhyncha Congress
  • Place of Presentation: ヴェゾン・ラ・ロメーヌ・フランス
  • Year and Date: 2010-07-01
• [Presentation] Sex ratio distortion by a Spiroplasma symbiont in the small brown planthopper, Laodelphax striatellus (2010)
  • Author(s): Sachiyo Sanada-Morimura
  • Organizer: 第13回ウンカ上科国際学会
  • Place of Presentation: ヴェゾン・ラ・ロメーヌ(フランス)
  • Year and Date: 2010-06-24