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Characteristics of Resistance to Rice Sheath Blight of Zhongda 2, a Transgenic Rice Line as Modified by Gene "RC24"
Author(s): YUAN Hong-xu, XU Xin-ping, ZHANG Jian-zhong, GUO Jian-fu, LI Bao-jian
Pages: 177-
180
Year: 2004
Issue:
4
Journal: RICE SCIENCE
Keyword: transgenic rice; chitinase gene; rice sheath blight; resistance;
Abstract: The transgenic rice, Zhongda 2, which was genetically modified from an indica rice line Zhuxian B by rice chitinase gene (RC24), had high resistance to rice sheath blight (Rhizoctonia solani) in laboratory and a two-year field experiment. The pathogen could invade sheath of Zhongda 2 and induce symptoms of the disease. No difference was noted in time of penetration or incubation period between Zhongda 2 and non-transgenic rice control, Zhuxian B, but the hyphae lysate could be observed earlier five non-transgenic rice lines showed higher resistance than donor non-transgenic parents, but the resistance was different along with the different maternal parents.
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