论文部分内容阅读
将两个太湖流域粳稻地方品种薄稻和黑壳子粳分别与感病品种丽江新团黑谷杂交和回交，获得Ｆ１、Ｆ２、ＢＣ１世代和部分Ｆ３家系，在３～４叶期用喷雾法分别接种ＺＡ４９和ＺＧ１小种，根据抗、感分离比例，推断薄稻和黑亮子粳对ＺＧ１和ＺＡ４９的抗性均由一对显性主效基因控制，两个抗病品种的抗病基因间呈非等位关系。进一步将两个抗病品种与三个含已知抗病基因的近等基因系材料Ｆ－９８－７（Ｐｉ－ｋｍ）、Ｆ－１２４－１（Ｐｉ－ｔａ）和Ｆ－１４５－２（Ｐｉ－ｂ）杂交，根据Ｆ１和Ｆ２接种结果表明，两个粳稻地方品种与上述三个材料所携带的抗病基因是不等位的。
Two wild rice varieties of japonica in the Taihu Lake region were cross-crossed with the susceptible cultivar Lijiang Xinqui Heigu, and the F1, F2 and BC1 generations and some F3 families were obtained. In the third to the fourth leaves, Method was used to inoculate ZA49 and ZG1 races respectively. According to the ratio of resistance and susceptibility, it was deduced that the resistance to ZG1 and ZA49 in both the two cultivars was controlled by a dominant dominant gene. The resistance genes of two resistant cultivars Between non-allelic relationship. Further, two resistant cultivars and three near-isogenic lineages F-98-7 (Pi-km), F-124-1 (Pi-ta) and F- 145-2 Pi-b). According to the results of F1 and F2 inoculation, the resistance genes carried by two japonica landraces and the above three materials were not equal.