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Effect of insect-resistant genetically engineered (Bt-T) rice and conventional cultivars on the brown planthopper (Nilaparvata lugens Stål)

  • Sung-Dug, Oh (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Eun Ji, Bae (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Kijong, Lee (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Soo-Yun, Park (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Myung-Ho, Lim (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Doh-Won, Yun (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Seong-Kon, Lee (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Gang-Seob, Lee (Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Soon Ki, Park (School of Applied Biosciences, Kyungpook National University) ;
  • Jae Kwang, Kim (Division of Life Sciences, Incheon National University) ;
  • Sang Jae, Suh (School of Applied Biosciences, Kyungpook National University)
  • 투고 : 2022.05.24
  • 심사 : 2022.07.18
  • 발행 : 2022.09.01

초록

Insect-resistant transgenic rice (Bt-T) expresses a toxic protein (mcry1Ac1) derived from the soil bacterium Bacillus thuringiensis found in the rice cultivar Dongjin with an insecticidal property against rice leaf roller (Cnaphalocrocis medinalis). In this study, to investigate the impact of Bt-T on non-target organisms, the feed and oviposition preferences and biological parameters of brown planthopper (Nilaparvata lugens Stål) were comparatively analyzed in four rice cultivars: Dongjin (parent variety), Ilmi (reference cultivar), Chinnong (brown planthopper resistant cultivar) and Bt-T. In the Bt-T and Dongjin cultivars, the feed preferences were 32.4 ± 8.3 and 34.1 ± 6.8%, and the oviposition preferences were 32.5 ± 5.1 and 30.0 ± 5.3% respectively, and there was no statistical significance between these rices. Additionally, in the Bt-T and Dongjin cultivars, the total lifespans from egg to adult were 39.5 ± 6.9 and 40.0 ± 5.8 days, and the weights of adult females were 1.78 ± 0.14 and 1.72 ± 0.16 mg, respectively. Therefore, there was no statistical difference in the biological parameters between these two varieties. Overall, the results indicate that the insect-resistant transgenic rice (Bt-T) did not negatively affect the reproduction and life cycle of brown planthopper, a non-target organism.

키워드

과제정보

본 연구는 농촌진흥청 연구개발사업(과제번호: PJ015745, PJ014235)의 지원으로 수행되었습니다.

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