| 蜡梅天然群体表型多样性分析 |
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| 引用本文： | 张彩霞,左丹丹,赵海涛,邓敏,熊昌发,刘春,袁素霞,明军. 蜡梅天然群体表型多样性分析[J]. 西南林学院学报, 2011, 0(5): 19-23 |
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| 作者姓名： | 张彩霞 左丹丹 赵海涛 邓敏 熊昌发 刘春 袁素霞 明军 |
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| 作者单位： | 中国农业科学院蔬菜花卉研究所;包头市园林科研所;昌平区园林绿化局;万源市农业局;万源市林业局; |
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| 基金项目： | 国家社会公益研究项目(2005DIB022)资助; 湖北省自然科学基金(2004ABA142)资助; 林木、花卉遗传育种教育部重点实验室开放基金(200605-12)资助 |
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| 摘 要： | 以蜡梅分布区内随机选取的9个天然群体为研究对象，对其叶片、果实、种子等8个表型性状进行多样性分析。结果表明：蜡梅表型性状在群体间存在广泛变异，8个性状群体间F值为0．99—65．90，除果实长和千粒质量，其他性状均达显著或极显著水平；群体内只有果实宽达显著水平，其他性状均不显著。8个性状的平均表型分化系数圪为63．16％，群体间多样性贡献率为8．90％，群体内多样性贡献率为3．04％，显示群体间变异是蜡梅表型性状变异的主要来源。蜡梅表型性状与地理因子的相关分析表明：果实宽与纬度成极显著负相关，种子数和千粒质量与纬度成显著负相关，而其他性状和地理位置的相关性均不显著。利用群体间欧氏距离进行的UPGMA聚类分析结果表明，9个蜡梅天然群体性状的表型特征并没有完全依地理距离而聚类，反映了蜡梅呈间断式岛状分布现状。
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| 关 键 词： | 蜡梅 天然群体 表型多样性 |
Phenotypic Diversity in Natural Populations of Chimonanthus praecox |
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| ZHANG Cai-xia,,ZUO Dan-dan,ZHAO Hai-tao,,DENG Min,XIONG Chang-fa,LIU Chun,YUAN Su-xia,MING Jun. Phenotypic Diversity in Natural Populations of Chimonanthus praecox[J]. Journal of Southwest Forestry College, 2011, 0(5): 19-23 |
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| Authors: | ZHANG Cai-xia ZUO Dan-dan ZHAO Hai-tao DENG Min XIONG Chang-fa LIU Chun YUAN Su-xia MING Jun |
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| Affiliation: | ZHANG Cai-xia1,2,ZUO Dan-dan1,ZHAO Hai-tao1,3,DENG Min4,XIONG Chang-fa5,LIU Chun1,YUAN Su-xia1,MING Jun1(1.Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China,2.Institute of Landscape Architecture of Baotou City,Baotou Mongolia 014010,3.Gardening and Forestry Bureau of Changping District,Beijing 102200,4.Agricultural Bureau of Wanyuan Municipality,Wanyuan Sichuan 636350,5.Forestry Bureau of Wanyuan Municipality,China) |
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| Abstract: | According to the morphology of leaf,fruit and seed and other 5 phenotypic traits of Chimonanthus praecox plants,the phenotypic diversity of C.praecox was analyzed by randomly choosing 9 natural populations as study objects in its distribution areas.The results showed that there was a great variation in morphological characteristics among the populations,the F values of the 8 phenotipic traits ranged from 0.99 to 65.90.There were significant differences or extremely significant differences in 6 of the 8 trai... |
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| Keywords: | Chimonanthus praecox natural population phenotypic diversity |
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