| 两种榕属植物的染色体核型分析 |
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| 引用本文： | 王芳,周兰英.两种榕属植物的染色体核型分析[J].西北植物学报,2011,31(9). |
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| 作者姓名： | 王芳 周兰英 |
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| 作者单位： | 1. 四川农业大学风景园林学院,四川温江,611130
2. 四川农业大学林学院,四川雅安,625014 |
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| 摘 要： | 采用根尖压片法对菩提树(Ficus religiosa Linn.)和小叶榕(Ficus microcarpa L.f.)进行染色体核型分析.结果显示两种植物的染色体数目均为2n=30,核型类型均为1B,核型公式分别为菩提树2n=2x=30=24m(2SAT)+6sm,小叶榕2n=2x=30=28m(2SAT)+2sm.比较发现,两种植物的核型相似,亲缘关系相近,二者中小叶榕的不对称系数较小(58.16%),为较原始的类型.两者的核型均为首次报道.
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| 关 键 词： | 榕属 染色体制片 核型 |
Karyotype Analysis of Two Ficus Species |
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| WANG Fang,ZHOU Lan-ying.Karyotype Analysis of Two Ficus Species[J].Acta Botanica Boreali-Occidentalia Sinica,2011,31(9). |
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| Authors: | WANG Fang ZHOU Lan-ying |
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| Institution: | WANG Fang1,ZHOU Lan-ying2(1 Sichuan Agriculture University Landscape Architecture,Wenjiang,Sichuan 611130,China,2 Sichuan Agriculture University Forestry College,Ya'an,Sichuan 625014,China) |
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| Abstract: | The karyotypes of two Ficus species,Ficus religiosa Linn.and Ficus microcarpa L.f.were examined by root tip squash method.The results indicated that the chromosome numbers of the two species were 2n=30.The karyotypes were 1B for both of them,the karyotype formula was 2n=2x=30=24m(2SAT)+6sm for F.religiosa Linn.and 2n=2x=30=28m(2SAT)+2sm for F.microcarpa L.f..Comparatively,the karyotypes of these two species were similar and genetically close;The karyotype asymmetries ranked in the increasing order of F.reli... |
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| Keywords: | Ficus chromosome preparation karyotype |
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