search for




 

Influences of Insect-Resistant Genetically Modified Rice (Bt-T) on the Diversity of Non-Target Insects in an LMO Quarantine Field
LMO 격리 포장에서 해충저항성벼(Bt-T)가 비표적 곤충다양성에 미치는 영향
Korean. J. Breed. Sci. 2018;50(4):406-414
Published online December 1, 2018
© 2018 Korean Society of Breeding Science.

Sung-Dug Oh1**, Soo-Yun Park1**, Ancheol Chang1, Myung-ho Lim1, Soon Ki Park2, and Sang Jae Suh2*
오성덕1**, 박수윤1**, 장안철1, 임명호1, 박순기2, 서상재2*

1Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, RDA, Jeonju, 54874, Republic of Korea
2School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
1농촌진흥청 국립농업과학원 생물안전성과, 2경북대학교 농업생명과학대학 응용생명과학부
Correspondence to: E-mail: sjsuh@knu.ac.kr, Tel: +82-53-950-7767 Fax: +82-53-950-6758
** The first two authors contributed equally to this work
Received September 13, 2018; Revised September 20, 2018; Accepted November 2, 2018.
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This study was conducted to develop environmental risk assessments and biosafety guides for insect-resistant genetically modified rice in an LMO (Living Modified Organism) isolation field. In the LMO quarantine area of Kyungpook National University, the species diversities and population densities of non-target insects found on insect-resistant genetically modified rice (Bt-T), rice resistant to Cnaphalocrocis medinalis, and non-GM rice (Dongjin-byeo and Ilmi-byeo) were investigated. The Bt-T plants were, therefore, evaluated under field conditions to detect possible impacts on above ground insects and spiders. In 2016 and 2017, the study compared transgenic rice and two non-GM reference rice, namely Dongjin-byeo and Ilmi-byeo, at Gunwi. A total of 9,552 individuals from 51 families and 11 orders were collected from the LMO isolation field. From the three types of rice fields, a total of 3,042; 3,212; and 3,297 individuals from the Bt-T, Dongjin-byeo, and Ilmi-byeo were collected, respectively. There was no difference between the population densities of the non-target insect pests, natural enemies, and other insects on the Bt-T compared to non-GM rice. The data on insect species population densities were subjected to principal component analysis (PCA) without distinguishing between the three varieties, namely GM, non-GM, and reference cultivar, in all cultivation years. However, the PCA clearly separated the samples based on the cultivation years. These results suggest that insect species diversities and population densities during plant cultivation are determined by environmental factors (growing condition and seasons) rather than by genetic factors.
Keywords : Insect-resistant genetically modified rice (Bt-T), Biosafety, Non-target insect diversity


December 2018, 50 (4)
Full Text(PDF) Free

Social Network Service
Services

Cited By Articles
  • CrossRef (0)

Funding Information