Cited 22 time in
- Gene flow from herbicide-tolerant GM rice and the heterosis of GM rice-weed F2 progeny = 제초제내성 GM 벼의 유전자이동
- Young Jin Chun; Dae In Kim; Kee Woong Park; Hyo Jeong Kim; Soon Chun Jeong; J H An; K H Cho; K Back; Hwan Mook Kim; Chang-Gi Kim
- Bibliographic Citation
- Planta, vol. 233, no. 4, pp. 807-815
- Publication Year
- Gene flow from genetically modified (GM) crops to non-GM cultivars or weedy relatives may lead to the development of more aggressive weeds. We quantified the amount of gene flow from herbicide-tolerant GM rice (Protox GM, derived from the cultivar Dongjin) to three cultivars (Dongjin, Aranghyangchal and Hwaseong) and a weedy rice line. Gene flow frequency generally decreased with increasing distance from the pollen donor. At the shortest distance (0.5 m), we observed a maximum frequency (0.039%) of gene flow. We found that the cultivar Dongjin received the greatest amount of gene flow, with the second being weedy rice. Heterosis of F2 inbred progeny was also examined between Protox GM and weedy rice. We compared growth and reproduction between F2 progeny (homozygous or hemizygous for the Protox gene) and parental rice lines (GM and weedy rice). Here, transgene-homozygous F2 progeny was significantly taller and produced more seeds than the transgene-hemizygous F2 progeny and parental lines. Although the gene flow frequency was generally low, our results suggest that F2 progeny between GM and weedy relatives may exhibit heterosis.
- Genetically modified (GM)HeterosisHybridRiceRisk assessmentTransgene
- Appears in Collections:
- Ochang Branch Institute > 1. Journal Articles
Division of Bio Technology Innovation > Bio-Evaluation Center > 1. Journal Articles
- Files in This Item:
Items in OpenAccess@KRIBB are protected by copyright, with all rights reserved, unless otherwise indicated.