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Pak SongHui,Han MyongHun,Li HyonU,Pak HyongBom,Li JongNam 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.3
Plasmid pCAMBIA2201-pta, containing the selectable marker neomycin phosphotransferase gene (npt II), Pinellia ternata agglutinin (PTA) gene and β-glucuronidase gene, were transformed into leaf discs of Chrysanthemum (Chrysanthemum morifolium Ramat.) via Agrobacterium tumefaciens-mediated transformation. It was confrmed by GUS (β-glucuronidase) and PCR analysis that the PTA gene had been successfully inserted into the plant genome. Hemagglutination assay was carried out and the expression of PTA gene in transgenic plants in vitro and the aphid-resistance assay result showed that the inhibition rates of the transformed plants were improved than the control. T1 progenies generated through the cuttage breeding from T0 generation had preserved the aphid-resistance and the inhibition rates of T1 generation had no signifcant diference with T0 generation (P>0.05). The results suggest that PTA gene can improve aphid resistance of chrysanthemum and its aphid resistance can be generated to T1 generation stably.