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安徽石蒜属4种植物核型研究
孙叶根; 郑艳; 张定成; 邵建章;   
1.安徽师范大学地理系;2.安徽师范大学生物系
摘要:
本文分析了安徽境内石蒜属LycorisHerb.4种植物的核型,并结合有关文献探讨它们的核型变异。结果表明,乳白石蒜L.albifoliaKoidz.的核型为2n=19=3m+7st+4t+5T,属3B型;中国石蒜L.chinensisTraub.为2n=16=6m+10T,属3B型;石蒜L.radiata(L’Her.)Herb.为2n=22=4st+18t,属4A型;换锦花L.sprengeriComes.exBaker.为2n=22=2st+20t,属4A型。以上各种植物均未发现随体和次缢痕,通过核型比较,可见同种不同居群间在染色体数和核型结构上均存在较大的变异。
关键词:  石蒜属  核型  安徽  
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