Development of the quality control to recover survival and reproductive characteristics in the flightless strain of Harmonia axyridis Pallas (Coleoptera : Coccinellidae)
Project/Area Number |
20780038
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Applied entomology
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Research Institution | National Agricultural Research Organization |
Principal Investigator |
SEKO Tomokazu National Agricultural Research Organization, 近畿中国四国農業研究センター総合的害虫管理研究チーム, 特命チーム員・研究員 (00360446)
|
Project Period (FY) |
2008 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
Keywords | 害虫管理 / 生物的防除 / 天敵育種 / 人為選抜 / ナミテントウ / 飛翔能力 / 品質管理 / 近親交配 / 雑種強勢 |
Research Abstract |
First, the effects of artificial selection for reduced flight ability on survival rate and fecundity of the ladybird beetle Harmonia axyridis were assessed. Hatching rate, emergence rate and fecundity of flightless strain were lower than those of control one significantly in the 36th generation after artificial selection was started under laboratory conditions. Second, the effectiveness of back cross method which can counteract deleterious effects of inbreeding was investigated. Our results suggest that the method is effective, because hatching rate and fecundity of the flightless strain of H. axyridis recovered.
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Report
(3 results)
Research Products
(7 results)