摘要
用ASG法对三叶木通 (Akebiatrifoliata)根、茎尖细胞进行染色体制片 ,探讨其染色体组型。结果表明 :三叶木通核型为 2n =2X =1 6=1 0M +2SM +2ST +2T ,X =8;2B类型 ,第 2号染色体上有一对随体。三叶木通细胞中存在有混倍性现象 ,实生苗中 2n =4X =32的四倍性细胞占 7.9% ;秋水仙素诱变苗、根茎占 31 .8%～37.9%。
A karyotypes of Akebia trifoliata was studied.The results showed that the karyotype of Akebia trifoliata was 2n=2x=16=10M+2SM+2ST+2T,X=8,2B karyotype Chromosome 2 of Akebia trifoliata has a double of satellite.There were 0～7.9% tetraploidy cell in its seeding but the percentage of gtetraploidy cell teached 31.8～37.9% after doubling with colchicine.The tetraploid karyotypes was 2n=4x=32=20M+4SM+4SM+4ST+4T.
出处
《中国野生植物资源》
2000年第6期18-20,共3页
Chinese Wild Plant Resources
