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对典型籼、粳稻南京11、金南凤突变体和中间型品种Bellemont相互杂交形成的三种F_1杂种优势及三者之间的RFLP进行了系统分析,结果表明:F_1杂种生物学优势存在着籼/粳>籼/中间型>粳/中间型趋势,经济优势则为籼/中间型>粳/中间型>籼/粳.而多态性是籼/粳(73.3%)>籼/中间型(67.9%)>粳/中间型(32.8%),并且各组合的12条染色体多态性程度也有差异,因此,多态性与生物优势趋于一致,但经济优势却与多态性及亲和性基因有关.
The three F1 hybrids formed by typical indica and Japonica rice Nanjing 11, Jinnanfeng mutant and the intermediate variety Bellemont were systematically analyzed and the RFLP among them was analyzed. The results showed that there were indica / japonica (Indica / intermediate type> japonica / intermediate type), and the economic superiority was indica / intermediate> japonica / intermediate> indica / japonica.The polymorphisms were indica / japonica (73.3%) and indica / intermediate (67.9% )> Japonica / intermediate type (32.8%), and there were also differences in the degree of polymorphism of 12 chromosomes in each combination. Therefore, the polymorphism and biological predominance tended to be the same, but the economic advantages were related to polymorphism and affinity gene related.