| 神农架自然保护区宜昌百合染色体核型分析 |
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| 引用本文： | 梅芳,李晓玲,张德春.神农架自然保护区宜昌百合染色体核型分析[J].安徽农业科学,2011,39(20):12111-12112,12115. |
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| 作者姓名： | 梅芳 李晓玲 张德春 |
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| 作者单位： | 三峡大学生物技术研究中心,天然产物研究与利用湖北省重点实验室,湖北,宜昌,443002;三峡大学生物技术研究中心,天然产物研究与利用湖北省重点实验室,湖北,宜昌,443002;三峡大学生物技术研究中心,天然产物研究与利用湖北省重点实验室,湖北,宜昌,443002 |
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| 基金项目： | 湖北省教育厅科学研究计划项目，三峡大学科研基金 |
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| 摘 要： | 目的]研究神农架自然保护区宜昌百合染色体核型,为研究宜昌百合遗传多样性、起源及系统演化提供一定的细胞学依据。方法]采用常规制片法对神农架保护区的宜昌百合进行染色体核型分析。结果]神农架保护区宜昌百合染色体数目为2n=2x=24,染色体基数x=12,染色体核型公式为K（2n）=2x=24=4m（2SAT）＋2sm＋8st＋10 t,主要由端部和近端部着丝点染色体组成。染色体相对长度组成为2n=24=4L＋4M2＋14M1＋2S,核型不对称系数为79.66%,属于＂3B＂型。结论]神农架宜昌百合在百合属植物系统演化上处于比较进化的类型。
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| 关 键 词： | 宜昌百合(Lilium leucanthum (Baker)Baker) 染色体 核型分析 |
Karyotype Analysis of Lilium leucanthum (Baker)Baker in Shennongiia National Nature Reserve |
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| Institution: | MEI Fang et al (Hubei Province Key Laboratory of Natural Products Research and Development,Biotechnology Research Center,China Three Gorges University,Yichang,Hubei 443002) |
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| Abstract: | Objective] To study karyotype analysis of Lilium leucanthum(Baker) Baker in Shennongjia national nature reserve,so as to supply some cytological data for studying genetic diversity,origin and systematical evolution of Lilium leucanthum(Baker) Baker.Method] Karyotype of Lilium leucanthum(Baker) Baker was analyzed by the conventional section method.Result]The chromosome number was 2n=2x=24,and the basic number of chromosome was x=12.Karyotype formula was K(2n)=24=4m(2SAT)+2sm +8st+10t,mainly consisting of terminal and subterminal chromosomes.Chromosome composition of relative length was 2n=24=4L+4M2+14M1+2S,whose karyotype asymmetric coefficient was 79.66% belonging to "3B" type.Conclusion] The karyotype of Lilium leucanthum(Baker) Baker in Shennongjia National Nature Reserve belong to evolutionary type in systematic and evolutionary of family Liliaceae. |
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| Keywords: | Lilium leucanthum(Baker) Baker Chromosome Karyotype analysis |
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