短光低温不育水稻宜DS叶缘颜色遗传的初步分析

短光低温不育水稻宜ＤＳ本身叶缘无色，与不同籼型父本杂交，无论父本的叶缘为紫色或无色，其Ｆ１均为紫色，这用于真假杂种的鉴别是一个很好的标记。经初步分析后认为，宜ＤＳ叶缘颜色的遗传符合两对基因控制的显性互补作用模式；用无色籼型父本与宜ＤＳ杂交，Ｆ１组合间叶缘颜色存在深浅差异；用粳型父本与杂交，Ｆ１表现为无色，原因待分析。

Preliminary Genetic Studies on Leaf Edge Color in Rice "Yids" with Short Day Low Temperature Induced Male Sterile

Crossing Yids, a rice with short day low temperature induced male sterile(SDLTR), withsome indica rice varieties as male parent, the F1s were all purple color no matter how the leaf edge colorof male parent was. This trait was very useful to distinguish false hybrid rice from true hybrid rice.Through preliminary genetical analyses, the results showed: 1) The genetic pattern of leaf edge color fitin with dominance-complementary effect controlled by two pairs of genes. 2) The leaf edge color of F1swere different with different indica rice as male parent. 3) If crossing Yids with japonica rice as maleparent, the leaf edge color of F1s were green, its reason should be studied further.