期刊
PHYTOPATHOLOGY
卷 94, 期 3, 页码 302-307出版社
AMER PHYTOPATHOLOGICAL SOC
DOI: 10.1094/PHYTO.2004.94.3.302
关键词
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Pi7(t), a dominant blast resistance gene derived from the rice cultivar Moroberekan. confers complete resistance against the fungal pathogen Magnaporthe grisea. Pi7(t) previously was positioned on chromosome I I by restriction fragment length polymorphism (RFLP) mapping of a recombinant inbred line population. One derivative of this population, recombinant inbred line (RIL)29, was designated as the representative line for Pi7(t). A segregating F-2 population was created front RIL29 in order to determine the location of Pi7(t). The new mapping data indicate a position for Pi7(t) 30 centimorgans distal to the original location. Pi7(t) shares a common position with the previously mapped Pil M. grisea resistance gene. RIL29 carries DNA not derived from either parent used to create the RIL population at the newly assigned Pi7(t) locus. RFLP analysis has identified a possible donor source.
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