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广西杉木两类型染色体核型初步究研
陈维新; 叶志云;   
广西林业科学研究所
摘要:
本文对广西杉木(Cunninghamia lanceolata)两个类型(油杉C.lanceolata cv.‘lanceolata’和糠杉C.lancolata cv.‘glauca’)的核型进行了初步研究。二者的染色体数目为2n=22,均由具有9对中央着丝点染色体,1对近中着丝点染色体(No.6),1对带随体染色体(No.1)组成。在部分油杉细胞里发现有B染色体,而在糠杉细胞里未发现B染色体,油杉染色体长度4.29—15.10微米,糠杉染色体长度4.74—14.54微米。
关键词:  杉木  油杉  糠杉  核型  B染色体  
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