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1973年石明松发现具有“长光照诱导不育,短光照诱导可育”的湖北光周期敏感核不育水稻(HPGMR)。朱英国等人研究认为HPGMR光敏不育性受一对或两对隐性主效基因和弱效修饰基因的作用,与细胞质无关。这一发现为水稻杂种优势利用提供了新型的核不育材料,它较三系不育系具有配组自由、一系两用、不受恢保限制等优越性。利用HPGMR为基因供体相继育成一大批的籼型或粳型两用核不育系。但进一步研究结果表明光敏基因在不同的核背景中表现较大
In 1973, it was found that the photoperiod - sensitive rice (HPGMR) with “long - photoperiod - induced sterility and short photoperiod - induced fertility” Zhu Yingguo et al. Studied that HPGMR photo-sterility is affected by one pair or two pairs of recessive major genes and weakly-modified genes, which has nothing to do with the cytoplasm. This finding provides a new type of nuclear sterile material for the utilization of heterosis in rice. Compared with the three-line CMS, it has the advantages of free distribution, one series of dual use, and no restriction on the recovery. A large number of indica or japonica dual-purpose genic male sterile lines were successively bred using HPGMR as a gene donor. However, further studies show that the light-sensitive genes in different nuclear backgrounds in the larger