摘要
对1BL-1RSK、V型雄性不育系及其保持系与中国春及其第一部分同源群染色体全部6个缺-四体杂种F1的育性恢复进行了研究。结果表明:K型杂种的育性恢复主要受1BS上Rfv1基因的控制;而V型杂种则受Rfv1和1D染色体上育性恢复基因的共同控制;在保持1D正常剂量的情况下,使恢复系中载有Rfv1的1B染色体(片段)加倍,如1A缺体-1B四体能使K、V型杂种F1的育性完全恢复。
Fertility-restoration in F1 hybrids produced by male sterile lines, with Ae.kotschyi or Ae. varibilis cytoplasm and 1BL-1RS translocated chromosome, and their maintainers as females and Chinese Spring and its 6 nulli-tetrasomics for group 1 homoelogous chromosomes as males was studied. The results shew that the fertilityrestoration in F1 hybrids of ms lines with Ae. kotschyi cytoplasm was controled by gene Rfvl on 1BS,However,the fertility-restoration in F1 hybrids of ms lines with Ae. varibilis cytoplasm depended on both Rfvl and other gene (s) possibly on 1D. The fertility in F, hybrids based on Ae. kotschyi or Ae. varibilis CMS could be restored completely by doubling chromosome 1B (or its fragment) carrying Rfvl in restorer lines while keeping their 1D in normal dosage, for example, nullisomic 1A-tetrasomic 1B.
出处
《西北植物学报》
CAS
CSCD
1999年第4期654-658,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
全国博士后项目!5914
陕西省科技攻关项目
关键词
普通小麦
雄性不育
粘果山羊草
育性恢复
Triticum aestivum
CMS
Aegilops kotschyi
Aegilops varibilis
fertility restoration