Pollen-mediated flow of bar gene in transgenic herbicide-resistant turf grass Zoysia japonica
| العنوان: | Pollen-mediated flow of bar gene in transgenic herbicide-resistant turf grass Zoysia japonica |
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| المؤلفون: | Jaechun Lee, Pill-Soon Song, Tae-Woong Bae, Hong-Gyu Kang, In-Ja Song, Pyung Ok Lim, Hyo-Yeon Lee, Ok-Chul Chung, Kee Woong Park, Yong-Eok Lee, Hyeon-Jin Sun |
| المصدر: | Plant Biotechnology Reports. 15:241-250 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Zoysia japonica, Transgene, food and beverages, Context (language use), Plant Science, Biology, medicine.disease_cause, Weed control, 01 natural sciences, Gene flow, 03 medical and health sciences, Horticulture, 030104 developmental biology, Anthesis, Germination, Pollen, medicine, 010606 plant biology & botany, Biotechnology |
| الوصف: | Weed control can be most effectively 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 affecting 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 differences in pollen viability/longevity between the transgenic and non-transgenic plants were observed. The pollen-mediated gene flow 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 different models. At distances within 5 m, the rate of gene flow ranged from 3 to 5.7% according to the models used. The greater the distance from the transgenic plant site, the lower the gene flow rate. The furthest transgene detected was 38 m away and exhibited a 0.25% gene flow 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 flow events were influenced by wind direction and velocity during flowering season. |
| تدمد: | 1863-5474 1863-5466 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::131d5c2719a843ff129ecf2ab9f44f0e https://doi.org/10.1007/s11816-021-00667-4 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........131d5c2719a843ff129ecf2ab9f44f0e |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 18635474 18635466 |
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