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从杉木看一个新的高等植物核型类型
李林初;   
复旦大学生物系
摘要:
本文报道浙江丽水地区栽培杉木的核型为K(2n)=2x=22=20m(2SAT)+2sm,它的染色体长度比(最长/最短)大于2、小于4,没有臂比大于2的染色体,属Stebbins的“1B”核型。根据Stebbins的研究,后者在高等植物中尚未发现过,因此“1B”可能是一个新的高等植物核型类型。笔者还发现其他产地的杉木及德昌杉木、米德杉木、巨杉和红杉—B染色体组的核型也为“1B”类型。
关键词:  杉木  新核型类型  
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