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| Disease Occurrence in Transgenic Rice Plant Transformed with Silbene Synthase Gene and Evaluation of Possible Horizontal Gene Transfer to Plant Pathogens |
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Sang-Mi Yu1, Ui-Seon Jeong1, Ha Kyung Lee1, So Hyeon Baek2, Soon Jong Kwon3 and Yong Hoon Lee1,4* |
1Division of Biotechnology, Chonbuk National University, Iksan 570-752, Korea
2Department of Rice and Winter Cereal Crop, National Institute of Crop Science, Rural Development Administration, Iksan 570-080, Korea
3Department of Agricultural Biotechnology, National Academy of Agricultural Science, Rural Development Administration, Suwon 441?707, Korea
4Advanced Institute of Environment and Bioscience, and Plant Medical Research Center, Chonbuk National University, Iksan 570-752, Korea |
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Correspondence:
<p>Yong Hoon Lee</p><p>Tel : +82, Yong Hoon Lee Tel : +82-63-850-0841
Fax: +82-63-850-0834
E-mail: yonghoonlee@jbnu.ac.kr |
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Received: May 02, 2014 Revised: July 23, 2014 Accepted: July 28, 2014 |
| Abstract |
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Genetic engineering is being used to enhance disease resistance and nutritional value of crops including rice plant. Considering the fast-growing agricultural biotechnology and rapidly increasing global area of transgenic crops, the risk evaluation on environment is necessary. In this study, we surveyed the difference of disease occurrence between transgenic rice variety, Iksan526 transformed with peanut stilbene synthase gene and non-transgenic rice varieties, Dongjin and Nampyeong in the field. Moreover, the possibility of gene transfer from transgenic rice to bacterial and fungal pathogens was investigated. The results of this study indicated that there was no significant difference in the occurrence and severity of the diseases between Iksan526 and Dongjin or Nampyeong. In addition, the results suggested that rice pathogen, such as Xanthomonas oryzae pv. oryzae, Rhizoctonia solani and Magnaporthe grisea did not take up stilbene synthase and bar genes under natural conditions. Moreover the transformed DNA was not transferred to the pathogens even in repetitive contacts. |
| Key Words:
Gene transfer, Piceid, Resveratrol, Stilbene synthase, Transgenic rice |
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