| 夏蜡梅天然群体表型变异及分布特征 |
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| 引用本文： | 陈香波,叶文国,田旗,张启翔.夏蜡梅天然群体表型变异及分布特征[J].北京林业大学学报,2010,32(2):133-140. |
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| 作者姓名： | 陈香波 叶文国 田旗 张启翔 |
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| 作者单位： | 1 北京林业大学园林学院，国家花卉工程技术研究中心2 上海市园林科学研究所 3 浙江省天台县林业局4 上海辰山植物园 |
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| 基金项目： | 国家环保部重大项目(物种08--二--3--1);;上海市绿化和市容管理局项目(G060208) |
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| 摘 要： | 选取夏蜡梅自然分布区8个群体,对花部、叶部、果部和种子的22个性状进行了系统调查与分析,以揭示夏蜡梅天然群体的表型变异特征及变异规律。结果显示:夏蜡梅天然群体存在丰富的表型变异,20个表型性状在群体间与群体内差异均达到极显著水平(P0.01),平均变异系数为12.15%(6.40%～45.87%),平均表型分化系数为41.87%(1.14%～85.07%),群体内变异(58.13%)大于群体间变异(41.87%);夏蜡梅花色(外被片颜色)表现为白、浅粉、粉、粉红4种类型,不同群体间各花色比例各有不同;各表型性状与生态因子间相关性分析结果显示,22个表型性状中有8个和生态因子呈显著相关。通过表型性状UPGMA聚类分析可以将8个群体划分为4个类群,表型性状分化体现为连续性的地理分布格局。
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| 关 键 词： | 夏蜡梅 天然群体 表型变异 地理变异格局 |
| 收稿时间： | 1900-01-01 |
Phenotypic variation and distribution pattern of natural populations of Sinocalycanthus chinensis |
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| CHEN Xiang-bo,YE Wen-guo,Tian Qi,ZHANG Qi-xiang.Phenotypic variation and distribution pattern of natural populations of Sinocalycanthus chinensis[J].Journal of Beijing Forestry University,2010,32(2):133-140. |
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| Authors: | CHEN Xiang-bo YE Wen-guo Tian Qi ZHANG Qi-xiang |
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| Institution: | 1 National Engineering Research Center for Floriculture，College of Landscape Architecture，Beijing Forestry University，100083，P. R. China; 2 Shanghai Landscape Gardening Research Institute，200232，P. R. China; 3 Tiantai Forestry Bureau，Zhejiang Province，317200，P. R. China； 4 Chenshan Botanical Garden，Shanghai，201602，P. R. China. |
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| Abstract: | In order to show the phenotypic variation of eight natural populations of Sinocalycanthus chinensis,22 phenotypic traits including flowers,leaves,fruits and seeds were investigated.Significant variations among and within populations were found(P < 0.01).The average coefficient of variation(CVs) was 12.15%(ranging from 6.40% to 45.87%),while the average phenotypic differentiation coefficient(Vst) was 41.87%(ranging from 1.14%--85.07% ).The variation within eight populations(58.13% ) was larger than that amon... |
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| Keywords: | Sinocalycanthus chinensis natural population phenotypic variation geological variation pattern |
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