KMID : 0368420090520030251
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Journal of Plant Biology 2009 Volume.52 No. 3 p.251 ~ p.258
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Assessment of Gene Flow from Genetically Modified Anthracnose-Resistant Chili Pepper (Capsicum annuum L.) to a Conventional Crop
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Kim Chang-Gi
Kim Dae-In Kim Hyo-Jeong Park Ji-Eun Lee Bum-Kyu Park Kee-Woong Jeong Soon-Chun Choi Kyung-Hwa An Joo-Hee Cho Kang-Hyun Kim Young-Soon Kim Hwan-Mook
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Abstract
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We conducted a 2-year field assessment of the gene flow from genetically modified (GM) chili pepper (Capsicum annuum L.), containing the PepEST (pepper esterase) gene, to a non-GM control line ¡°WT512¡± and two commercial hybrid cultivars, ¡°Manidda¡± and ¡°Cheongpung Myeongwol (CM).¡± After seeds were collected from the pollen-recipient non-GM plants, hybrids between them and the GM peppers were screened by a hygromycin assay. PCR with the targeting hpt gene was performed to confirm the presence of transgenes in hygromycin-resistant seedlings. Out of 7,071 ¡°WT512¡± seeds and 6,854 ¡°Manidda¡± seeds collected in 2006, eight and 12 hybrids, respectively, were detected. In 2007, 33 hybrids from 3,456 ¡°WT512¡± seeds and 50 hybrids from 3,457 ¡°CM¡± seeds were found. The highest frequency of gene flow, 6.19%, was observed in that 2007 trial. These results suggest that a limited isolation distance would be sufficient to prevent gene flow from GM to conventionally bred chili peppers.
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KEYWORD
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Capsicum annuum, Chili pepper, Gene flow, Genetically modified (GM) crop
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