裸燕麦体细胞无性系的农艺性状变异

Agronomic Trait Variation of Somaclonal in Naked Oat (Avena nuda L.)

５６个２０－１品系（来源于正且个Ｒ０植株）和２１２个晋燕８号品系（来源于４５个Ｒ０植株）被评价。结果表明，组织培养能够获得有益的农艺性状。８２％的２０—１系谱和９３％的晋燕８号系谱在７个测定性状中至少有一个性状发生显著变异．对每个性状都有一些增加和降低的品系被发现，而且有益的农艺性状变化比不良的变化频率高。再生植株后代中进行选择证明：性状变异是可以遗传的，单株选择能够在作物改良中应用。获得的变异也证明：通过直接运用遗传操纵包括组织培养产生的材料，为了鉴定其有益的性状变异，应该广泛地进行试验评价。

The tissue culture of naleed oat somatic cells may generate agronomic variation that is potentially useful in plant improvement. 82% of the 20-1 families and 93% of the GY-8 families had significant variations for at least one of the seven traits measured. Agronomically desirable variations were more frequently found. Selections among culture-derived lines demonstrated that the trait variations were heritable and that individual lines could be selected for use in plant improvement. The variation observed also demonstrated that materials prepuced by using directed genetic manipulation involving tissue culture should be tested extensively for possible quantitative trait variation.