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中国桤木属植物的细胞学研究(Ⅰ)
任保青;刘军;
1.四川农业大学林学园艺学院生态林业省级重点实验室;2.四川农业大学林学园艺学院生态林业省级重点实验室 四川雅安625014;3.四川雅安625014
摘要:
对桦木科桤木属自然分布于中国西南地区的4个种进行了细胞学研究,结果分别为:川滇桤木K(2n)=56=30m+24sm+2st;桤木K(2n)=56=38m+16sm+2M;蒙自桤木K(2n)=56=28m+26sm+2st;毛桤木K(2n)=56=42m+14sm;其中川滇桤木的核型属于2A型,其余均为2B型;上述种类染色体数目均为2n=56。4种材料的核型均为首次报道。
关键词:  桤木属    细胞学    染色体    核型
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