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为明确小麦农家品种所含抗条锈病基因组成及其抗病性和遗传特点,通过接种中国小麦条锈菌生理小种CYR31、CYR32和CYR33,对红锁条和白蚂蚱2个农家品种进行抗病性鉴定、基因推导及系谱分析和苗期抗病性遗传分析。结果显示,红锁条和白蚂蚱苗期均高抗3个流行小种CYR31、CYR32和CYR33,成株期高抗CYR32;红锁条和白蚂蚱均含有未知抗条锈病基因;红锁条对CYR31和CYR32的抗病性由2对隐性独立或重叠遗传基因控制,对CYR33的抗病性由1对隐性基因控制;白蚂蚱对CYR31的抗病性由2对显性互补基因控制,对CYR32的抗病性由1对显性基因控制,对CYR33的抗病性由2对隐性独立或重叠基因控制。农家品种红锁条和白蚂蚱含有抗条锈病基因,可以为抗病育种提供新抗源。
In order to clarify the genetic composition of the stripe rust resistance genes and their disease resistance and inheritance traits contained in wheat cultivars, two peasant cultivars of Rhododendron similis and white grasshopper were inoculated with CYR31, CYR32 and CYR33 of Chinese wheat stripe rust, Identification of disease resistance, gene inference and pedigree analysis and genetic analysis of seedling disease resistance. The results showed that the red lock and white grasshopper were highly resistant to three popular races CYR31, CYR32 and CYR33, and adult plant height CYR32; the red lock and white grasshopper all contained unknown stripe rust resistance genes; The resistance to CYR31 and CYR32 was controlled by two pairs of recessive independent or overlapping genes and the resistance to CYR33 was controlled by one recessive gene. The resistance of white grasshopper to CYR31 was determined by two pairs of dominant Gene control, disease resistance to CYR32 is controlled by one pair of dominant genes, and resistance to CYR33 is controlled by two pairs of recessively independent or overlapping genes. Farmhouse varieties red bar and white grasshopper contain stripe rust resistance genes that can provide new resistance to disease-resistant breeding.