一个高抗玉米南方锈病基因的QTL定位及遗传分析

王兵伟,覃嘉明,时成俏,郑加兴,覃永嫒,黄安霞

QTL Mapping and Genetic Analysis of a Gene with High Resistance to Southern Corn Rust

BingWei WANG,JiaMing QIN,ChengQiao SHI,JiaXing ZHENG,YongAi QIN,AnXia HUANG

表1 S313和齐319与高感自交系组配F2群体抗感分离比例统计表

Table 1 The statistical table of the segregation ratios of resistant and susceptible plants in F2 population of S313 and Qi319× susceptible parents

年份 Year 群体 Population 总株数 Total plants 抗病株数 Resistant plants 感病株数 Susceptible plants 卡方值 χ2 value χ2测验 Chi-square test 实际抗﹕感值 Actual R﹕S value 2016秋 2016 Autumn S313×ZD415 356 271 85 0.18 3﹕1 3.19 2016秋 2016 Autumn ZD415×S313 284 209 75 0.23 3﹕1 2.79 2016秋 2016 Autumn S313×PHW52 313 232 81 0.09 3﹕1 2.86 2016秋 2016 Autumn PHW52×S313 260 189 71 0.62 3﹕1 2.66 2016秋 2016 Autumn S313×368M 277 217 60 1.47 3﹕1 3.62 2016秋 2016 Autumn 368M×S313 300 222 78 0.11 3﹕1 2.85 2016秋 2016 Autumn S313×TS647 288 214 74 0.04 3﹕1 2.89 2016秋 2016 Autumn TS647×S313 385 285 100 0.15 3﹕1 2.85 2016秋 2016 Autumn TS647×齐319 314 103 211 295.95 非3﹕1 Non 3﹕1 0.49 2016秋 2016 Autumn S313×齐319 266 244 22 38.82 非3﹕1 Non 3﹕1 11.09 2017春 2017 Spring S313×TS647 747 539 208 3.07 3﹕1 2.59 2017春 2017 Spring S313×PHW52 275 201 74 0.44 3﹕1 2.72 2017春 2017 Spring S313×ZD415 631 457 174 2.10 3﹕1 2.63 2017秋 2017 Spring S313×PHW52 6705 4984 1721 1.56 3﹕1 2.90 2017秋 2017 Spring S313×TS647 4206 3182 1024 0.92 3﹕1 3.11