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논문 기본 정보

자료유형
학술저널
저자정보
강홍규 (제주대학교) 정옥철 (제주대학교 아열대원예산업연구소) 배태웅 (제주대학교 아열대원예산업연구소) 선현진 (제주대학교) 송인자 (한국생명공학연구원) 박기웅 (충남대학교) 임평옥 (제주대학교) 이재천 (제주대학교 의학전문대학원 내과학교실) 이용억 (동국대학교) 송필순 (제주대학교) 이효연 (제주대학교)
저널정보
한국식물생명공학회 Plant Biotechnology Reports Plant Biotechnology Reports 제15권 제2호
발행연도
2021.1
수록면
241 - 250 (10page)

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Weed control can be most efectively achieved through the use of herbicide-resistance transgene. A preliminary study bar?transgenic Zoysia japonica posed no serious risk on the unintended escape of the transgene from its cultivation site. The present follow-up investigation of the dispersion of pollen and its short-distance escape outside of the bar-transgenic Zoysia japonica habitats were ascertained in terms of environmental factors afecting anthesis and pollen viability. In a 24-h day cycle, zoysiagrass pollen was released predominantly between 08:00 and 10:00, and the pollen was most viable during the same time interval. Optimal temperature and humidity for pollen viability was 15?20?°C and 80?90%, respectively. The pollen germinated in 120?min after anthesis, but under cloudy conditions germination time doubled. No diferences in pol?len viability/longevity between the transgenic and non-transgenic plants were observed. The pollen-mediated gene fow of transgenic Zoysia japonica to wild-type non-transgenic zoysiagrass species was monitored by measuring the cross-over rate of the bar gene in the context of three diferent models. At distances within 5?m, the rate of gene fow ranged from 3 to 5.7% according to the models used. The greater the distance from the transgenic plant site, the lower the gene fow rate. The furthest transgene detected was 38?m away and exhibited a 0.25% gene fow rate. The radial model yielded a 3.7% escape rate within a 3?m radius and was wind direction dependent. The distance- and direction-dependent gene fow events were infuenced by wind direction and velocity during fowering season.

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