Evaluation of gene flow and its environmental effects in the field
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概要
- 論文の詳細を見る
To establish a guideline for assessing the environmental effects of genetically modified (GM) crops, flows of genes from GM crops to their wild relatives should be understood. We investigated the gene flow between cultivated and wild varieties of carrot, Daucus carota, as a model plant system despite of the fact that no GM carrot is currently cultivated in Japan. Carrot is one of most widely cultivated vegetables and shows high genetic diversity because of its cross- and insect-mediated-pollination characteristics. Since wild carrot grows in many countries including Japan, gene flow in carrot would be one of the worst cases of dispersing unnecessary modified genes to the wild. In this study, we investigated the population density of wild carrot in Hokkaido, Japan, and the behaviors of its pollinators. There, wild carrot grows in wasteland and along roads near the coast where cultivated carrot cannot grow. We made hybrids between wild and cultivated carrots, observed their growth, and found that the hybrid could vigorously grow at the site. We also found gene markers that can distinguish wild carrot from its cultivated relative although the wild carrot population was more genetically diverse than the cultivated one. These makers will enable gene introgression from cultivated carrot to its wild relatives to be detected. This study will be a reference for assessing gene flows in GM crops.
- 日本植物細胞分子生物学会の論文
- 2005-12-01
著者
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UMEHARA Mikihisa
Department of Biotechnology, Fukuoka Agricultural Research Center
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KAMADA Hiroshi
Gene Research Center, Graduate School of Life and Environmental Science, University of Tsukuba
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ONO Michiyuki
Gene Research Center, Institute of Biological Sciences, University of Tsukuba
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Kamada Hiroshi
Gene Experiment Center University Of Tsukuba
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Ono Michiyuki
Gene Res. Center Graduate School Of Life And Environmental Sciences Univ. Of Tsukuba
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Kaneko Daisuke
Gene Research Center University Of Tsukuba
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EGUCHI Ikue
Agriculture Extension Center of Bando
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Umehara Mikihisa
Department Of Biotechnology Fukuoka Agricultural Research Center
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Kamada Hiroshi
Gene Exp. Center Univ. Tsukuba
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