【摘要】 用五叶风藤 (HolboelliafargesiiReaub)茎尖染色体制片 ,研究其染色体组型 ,结果表明 :五叶风藤的染色体组型公式为 2n =2x =16 =12m +4sm ,染色体基数x =8,第 4号染色体上有一对染色体随体 ,核型为 2B类型 ,其中 2n =4x =32 =2 4m +8sm的四倍性细胞相当普遍。更多还原

【Abstract】 A stem top karyotykes of Holboellia fargesii Reaub was studied by observing the chromosome of cells. The results showed the karyotype of Holboellia fargesii Reaub was 2n=2x=16=12m+4sm,x=8., 2B nuclear type. The forth chromosome of Holboellia fargesii Reaub has a double of satellites, which is the one of main signs identifying the species of Akebia Decne.更多还原