淡黄花百合根尖染色体C-带分析

Giemsa C-banding Analysis of Lilium sulphureum Baker Chromosomes from Root Tips

利用Giemsa C-带方法对淡黄花百合(Lilium sulphureum Baker)进行了研究。结果表明:淡黄花百合(Lilium sulphureum)的染色体数目为2n=2×=24,每条染色体上都显示出特征带,带纹的深浅差异明显,其带型公式为:2n=24=2CI+2I+4CI++2CI++8I++2I+T++2IT++2I+N。染色体F有两条强弱不同的中间带和一条次缢痕带。通过Giemsa C-带方法可以将淡黄花百合(Lilium sulphureum Baker)的每条染色体区分开。

The chromosomes from root tips of Lilium sulphureum Baker were analysised by Giemsa C-banding. The result shown that, the karyotype is 2n-2x=24, and the different C-banding points were shown on each chro- mosome. The C-banding karyotype would be： 2n=24=2CI＋2I＋4CI＋＋2CI^＋＋8I^＋＋2I＋T＋＋2IT＋＋2I＋N. Two different depth centromeric bands and one secondary constriction band were shown on chromosome F. Each chromosome of Lilium sulphureum Baker can be distinguished by Gemisa C-banding analysis.