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水松的细胞学研究
李林初;
复旦大学生物系
摘要:
本文报道了水松的核型公式K(2n)=22=22m,为“1A”类型。染色体相对长度组成为2n=22=2L+4M2+16M1。8号染色体具长着丝点区域,这是核型的一个特征。与近缘的国产种柳杉和水杉相比较。三者由原始到进化的顺序可能为(柳杉、水松)、水杉,水松与柳杉最接近,水杉和水松较近缘。本文还计算了水松的染色体体积。
关键词:  水松  核型  染色体体积  
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