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通过不同分类单位细胞质和细胞核结合所得到的异细胞质体,常常表现雄性不育性。已在芸苔属的三种异细胞质体中报导了细胞质雄性不育性:(1)萝卜细胞质与甘蓝、甘蓝型油菜(Bannerot等1974,Rousselle和Renard 1978)和白菜型油菜(Williams和Heyn 1981)核染色体组结合;(2)白菜型油菜的核在二行芥细胞质中(Hinata和Konno 1979);(3)甘蓝的核代换入黑芥细胞质中(Pearson 1972)。可以利用由这种雄性不育性促成远交生产杂种优势商品杂种。然而,拓宽雄性不育性的细胞质基础以防止与某些细胞质有关的病害侵染是值得想望的。
The cytoplasm obtained by the combination of cytoplasm and nucleus in different taxonomic units often show male sterility. Cytoplasmic male sterility has been reported in three different cytoplasms of Brassica: (1) radish cytoplasm with cabbage, Brassica napus (Bannerot et al. 1974, Rousselle and Renard 1978) and Brassica campestris (Williams and Heyn 1981 ) Nuclear genome; (2) nuclei of Brassica campestris are in the cytoplasm of the two-mustard cytoplasm (Hinata and Konno 1979); and (3) substitution of the nucleus of the cabbage into the cytoplasm of the black mustard (Pearson 1972). It is possible to utilize this male sterility to facilitate outbred production of heterosis commodity hybrids. However, it is desirable to broaden the cytoplasmic basis of male sterility to prevent disease infestation associated with certain cytoplasms.