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一、前言自1948年开始在疏菜上利用自交不亲和系杂种以来,目前国内外十字花科疏菜杂种优势利用的主要途径仍然是自交不亲和系杂种。日本学者治田辰夫(1958)分析了甘兰和大白菜一些品种中一对不亲和基因问的四种遗传类型,进一步推动了自交不亲和性遗传的研究。饲用甘兰型油菜(B.napus·L·)自交不亲和性对自交亲和性通常是显性(Mackay,1976、1977)。在油用甘兰型油菜中,瑞典Olsson(1960),从欧洲油菜(B.napus,L.)分离出自交不亲和后代。在籽用油菜中,要育成隐性的自交不亲和系以及解决剥蕾繁殖自交不亲和系费工较多的问题,是当前国内外对甘兰型自交不亲和系研究的重点问题之一。
I. INTRODUCTION Since 1948, self-incompatibility hybrids have been used in Chinese cabbage. At present, the main ways to utilize heterosis of Cruciferae at home and abroad are still self-incompatible hybrids. The Japanese scholar Yoshio Akio (1958) analyzed four genetic types of a pair of incompatible genes in some cultivars of Chinese cabbage and Chinese cabbage, further promoting the study of inheritance of incompatibility. Inbred compatibility of B. napus L. is usually dominant in selfing (Mackay, 1976, 1977). Olive (Olsson, Sweden), a type of oilseed rape, was isolated from incompatible progeny from B. napus (L.). In the rapeseed, it is necessary to cultivate the recessive self-incompatibility system and to solve the problem of more labor cost in self-incompatibility and self-incompatibility. One of the key issues.