论油菜的起源进化与雄性不育三系选育

RELATIONSHIP BETWEEN THE ORIGIN AND EVOLUTION OF RAPESEEDS AND THE DEVELOPMENT OF CYTOPLASMIC MALESTERILE "THREE LINES"

本文分析了国内外现有的甘蓝型、芥菜型、白菜型雄性不育三系材料,发现油菜的起源进化与三系选育有密切关系:1、在起源中心和附近地区分布、进化程度较低的品种类群及原始种中,容易发现不育胞质和恢复基因;2、在离起源中心较远地区分布、进化程度较高的品种类群中,易找到保持系.还列举了水稻等作物的材料,也得到同样的结果.这些论点对油菜和其他作物的雄性不育三系选育都有重要参考价值。

The CMS three lines in B.napus,B.campestris and B'.juncea in the world were analysised heve.It was concluded that;(1)It 's easy to find CMS and its restorers in cultivar populations with lower degree of evolution and primary species in the canters of origin and n,arby.(2)It's easy to find maintainers in the area far away from the centers and higher evolved cultivar populations The similar conclusions were gained by auther in analysisin other crops(Rice ate.).These view points might be valuable to the development of the CMS three lines in.rapeseed and other crops.