野败型籼稻雄性不育保持系选育的实践与理论
A PRACTICE AND THEORY FOR BREEDING MAINTAINER LINE OF MALE STERILITY OF WILD RICE WITH ABORTIVE POLLEN
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摘要: 为了育成野败型的新的雄性不育系,几年来我们先后设计并实施了选育雄性不育保持系的四个模式。即:保持系品种之间杂交、保持系与微效恢复品种之间杂交、保持系与强恢复系品种之间杂交、保持系与杂交水稻(即F1)之间杂交。结果每个模式都取得了一批新的有价值的保持材料,正在加代并与不育系回交。同时通过统计、计算镜检花粉育性的资料,再次证明两对基因控制恢、保,并初步验证微效恢复基因与强恢复基因质的差别。Abstract: In order to breed the new male sterile line of wild rice with abortive pollen, four mordels for breeding maintainer line of male sterile were designed and carried out by us recently, i.e. maintainer crossed with maintainer; maintainer crossed with restoring variety with minor gene, maintainer crossed with restorer and maintainer crossed with hybrid rice(F1). The results indicated that some new maintainers which possess significant value were got in every combinition, and were reproduced and used in backcross with the old male sterile lines. At the same time, the materials of pollen fertility were examined under microscope and the data were calculated. The result also showed that the fertility and sterility were controlled by two pairs of genes and it was preliminary identified that the restoring ability between strong restoring genes and minor restoring genes were qualitative different.
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[6] 雷捷成等,1984,野败水稻雄性不育保持系选育的遗传分析。中国农业科学5:30-34.
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