| 云南鸡足山地区多星韭核型研究 |
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| 引用本文： | 赵莉丽,王锦.云南鸡足山地区多星韭核型研究[J].山东林业科技,2008,38(3):1-3. |
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| 作者姓名： | 赵莉丽 王锦 |
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| 作者单位： | 西南林学院园林学院,云南,昆明,650224 |
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| 基金项目： | 西南林学院大学生科技创新项目 |
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| 摘 要： | 对鸡足山地区4个多星韭种群的染色体进行核型分析与比较，结果表明：多星韭1号和4号种群为二倍体，核型公式为：2n=2x=14-8sm（2SAT）＋6m和2n=2x=14-10m（SAT）＋4sm，多星韭2号和3号种群为四倍体，核型公式为：2n=4x=28-14m（2SAT）＋14sm和2n=4x=28=18m（2SAT）＋10sm。从植株形态、分布、生境、核型等方面分析表明，多星韭核型进化趋势是由二倍体向四倍体进化的，四倍体多星韭二倍化显著。
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| 关 键 词： | 鸡足山 多星韭 染色体 核型 |
The Study on Karyotype of Allium wallichii in Jizu Mountain,Yunnan province |
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| Zhao Lili,Wang Jin.The Study on Karyotype of Allium wallichii in Jizu Mountain,Yunnan province[J].Journal of Shandong Forestry Science and Technology,2008,38(3):1-3. |
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| Authors: | Zhao Lili Wang Jin |
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| Institution: | (Faculty of Landscape Architecture, Southwest Forestry College, Kunming Yunnan 650224, China) |
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| Abstract: | The karyotypes of four populations of Allium wallichii in Jizu Mountain were analyzed. The results showed that populations NO. 1 and NO. 4 were all diploid, whose karyotype formulae were 2n=2x=14=8sm（2SAT）＋6m and 2n=2x=14 10m（SAT） ＋4sm. Populations NO. 2 and NO. 3 were all tetraploid, whose karyotype formulae were 2n=4x=28=14m （2SAT） ＋14sm and 2n=4x=28=18m（2SAT） ＋ 10sm. From the morphology, distribution, habitats and karyotypes analysis show that the karyotype evolution trend of Allium wallichii is from diploid to tetraploid, tetraploid is conspicuously diploidizated. |
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| Keywords: | Jizu Mountain Allium wallichii chromosome karyotype |
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