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油菜种子油分中芥酸(C22:1)含量的多少决定其食用或工业用途:芥酸含量较低的菜油宜作食用,而芥酸含量较高的菜油宜作工业用。油菜芥酸含量这一品质性状是受胚基因型控制的,不同品种类型由于其芥酸基因的不同或基因型的不同,其芥酸含量也不同。1979年Krzymanski和Downey归纳对欧洲和加拿大各国油菜品种的研究指出,甘蓝型油菜(B.napus)芥酸含量是受两对基因控制的,白菜型油菜(B.campestris)芥酸含量是受一对基因控制的。基因间的作用均表现加性效应。到目前为止,发现甘蓝型油菜和白菜型油菜至少有五个不同的基因控制着芥酸含量,即e、E~a、E~b、E~c、E~d,它们分别控制0、10%、15%、30%和3.5%的芥酸含量。在甘蓝型油菜中仅有e、E~a和E~d,它们纯合体的基因基分别为eeee、E~aE~aE~aE~a和E~dE~dee,其表现型的芥酸含量分别为0、40%和7%。为了弄清控蓝型油菜属亚洲类型,很多研究指出,它在许多特性上与欧洲类型有差异。为了弄清控
The content of erucic acid (C22: 1) in rape seed oil determines its consumption or industrial use: vegetable oil with lower erucic acid should be used as food, and vegetable oil with higher erucic acid is suitable for industrial use. The erucic acid content of rapeseed is controlled by the embryo genotype. Different varieties have different erucic acid content due to different erucic acid genes or different genotypes. In 1979, Krzymanski and Downey concluded that the studies on the varieties of rapeseed in Europe and Canada pointed out that the erucic acid content of B. napus is controlled by two pairs of genes. The erucic acid content of B. campestris is affected by one For gene control. The role of genes showed additive effects. So far, it has been found that at least five different genes of Brassica napus and Brassica campestris control erucic acid content, namely e, E ~ a, E ~ b, E ~ c and E ~ d, %, 15%, 30% and 3.5% erucic acid content. In Brassica napus only e, E ~ a and E ~ d, their homozygous genes were eeee, E ~ aE ~ aE ~ aE ~ aE ~ aE ~ dE ~ dee, the phenotypic erucic acid content Respectively 0, 40% and 7%. In order to understand that the blue-canola is of the Asian type, many studies indicate that it differs from the European type in many characteristics. In order to clarify control