论文部分内容阅读
该研究以粘果山羊草Ae.19(Ae.Kotschyi 19)为母本,中国春和云南铁壳小麦为桥梁亲本进行远缘杂交,获得雄性不育株,再用普通小麦品种(系)与其测交和连续回交,育成了具有粘果山羊草Ae.19细胞质普通小麦细胞核的K-19小麦雄性不育系,并选育出K-19农矮3号A等10余个优良K-19不育系,其不育性稳定,没有发现单倍体,综合性状好。从普通小麦品种(系)中发现了恢复力高的K-19小麦雄性不育恢复系(源),筛选出原KR_1等7个恢复系,国内法恢复度高达88.2％～96.9％,国际法恢复度高达116.4％～150.4％,其后代不产生单倍体或单倍体频率很低,综合性状好。K-19小麦雄性不育-育性恢复体系的建成,丰富了小麦杂优育种种质库,具有良好的生产利用价值。
In this study, Ae19 (Ae.Kotschyi19) was used as the female parent, Chinese spring and Yunnan poplar were used as parents to carry out distant hybridization, and male sterile plants were obtained. The common wheat varieties (lines) K-19 wheat male sterile lines with Ae19 cytoplasmic common wheat nuclei were bred, crossed and crossed back continuously. And more than 10 K- 19 sterile line, its sterility is stable, no haploid found, good overall traits. The K-19 wheat male sterility restorer line (source) was found from common wheat varieties (lines), and seven restorer lines such as original KR_1 were screened out. The domestic recovery rate was as high as 88.2% -96.9%, and the international law recovered Degree of 116.4% to 150.4%, the offspring does not produce haploid or haploid frequency is low, good overall traits. K-19 Wheat Male Sterility - The establishment of fertility restoration system enriches the gene pool of heterosis breeding in wheat and has good production and utilization value.