CAJ | 학술논문

2006-2009年,以甘肃陇南生产品种陇鉴9343、陇鉴9811作母本,铭贤169作父本进行杂交,F_2代材料苗期分别接种白粉菌单孢菌系E05、E09进行抗性遗传分析,结果表明:对陇鉴9343组合,接种E05和E09,F_2代植株抗感分离比分别为65:217和65:154,经卡方测验符合理论比1:3.对陇鉴9811组合,接种E05和E09,F_2代植株抗感分离比分别为52:166和87:314,也符合理论1:3的比率.据此推知陇鉴9343、陇鉴9811对E05和E09的抗性均由1对隐性抗性基因控制.
2006-2009년,이감숙롱남생산품충롱감9343、롱감9811작모본,명현169작부본진행잡교,F_2대재료묘기분별접충백분균단포균계E05、E09진행항성유전분석,결과표명:대롱감9343조합,접충E05화E09,F_2대식주항감분리비분별위65:217화65:154,경잡방측험부합이론비1:3.대롱감9811조합,접충E05화E09,F_2대식주항감분리비분별위52:166화87:314,야부합이론1:3적비솔.거차추지롱감9343、롱감9811대E05화E09적항성균유1대은성항성기인공제.
Two wheat cultivars Longjian 9343 and Longjian 9811 from Southern Gansu, China, was used as mater-nal parents and hybridized with the susceptible cultivar Mingxian 169 during 2006-2009. To study the inheritance of the resistance in seedling plants, the F_2 populations of the crosses were inoculated with two powdery mildew iso-lates E05 and E09. The results showed that the segregation ratio for the cross of Longjian 9343 and Mingxian 169 were 65:217 in F_2 plants when tested with E05, which fits into the expected value for 1R: 3S in Chi-square (χ_c~2) testing for probability of goodness fit. The test with E09 produced similar results, The F_2 plants were segregated as 65R: 154S. The Chi-square(χ_c~2) testing with probability (P) for goodness fits the expected value 1:3. For cultivar Longjian 9811, the segregation ratios of the resistant to the susceptible were 87:314 and 52:166, respectively, when tested with E05 and E09 on F_2 plants. The Chi-square (χ_c~2) testing with probabilities (P) for goodness fit expected values 1:3. The results indicated that the resistance of Longjian 9343 and Longjian 9811 were both con-ferred by one recessive gene.