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Plant Diversity ›› 2015, Vol. 37 ›› Issue (03): 301-308.DOI: 10.7677/ynzwyj201514127

• 研究论文 • 上一篇    下一篇


 王弯1, 杨文利2, 窦平1, 赵冉冉1, 张钢民1   

  1. 1 北京林业大学自然保护区学院,北京100083; 2 河北农业大学园林与旅游学院, 河北 保定071000
  • 收稿日期:2014-09-15 出版日期:2015-05-25 发布日期:2015-02-03
  • 基金资助:

    国家自然科学基金 (31270253);国家基金委重大国际合作项目 (31110103911)

The Relationship between Aleuritopteris humatifolia and A-chrysophylla Based on Three Chloroplast DNA Sequences Analyses

 WANG  Wan-1, YANG  Wen-Li-2, DOU  Ping-1, ZHAO  Dan-Dan-1, ZHANG  Gang-Min-1   

  1. 1College of Nature Conservation Beijing Forestry University, Beijing 100083, China; 2 College of Landscape
    Architecture and Tourism, Hebei Agricultural University, Baoding, Hebei 071000, China
  • Received:2014-09-15 Online:2015-05-25 Published:2015-02-03
  • Supported by:

    国家自然科学基金 (31270253);国家基金委重大国际合作项目 (31110103911)


选择阴石粉背蕨 (Aleuritopteris humatifolia) 和金粉背蕨 (Achrysophylla) 及其相关类群共27种植物,提取基因组DNA,通过聚合酶链式反应 (PCR) 扩增其叶绿体rbcL,trnLF和matK序列,所得序列利用 ClustalX 软件进行对位排列,用 MEGA60软件计算种内及种间遗传距离,并采用最大简约法 (MP) 构建系统发育树。结果显示:阴石粉背蕨1个样品和金粉背蕨2个样品的rbcL,trnLF和matK序列间差异很小,最大遗传距离均小于其与其它近缘种的种间最小遗传距离,结合两个种叶片形态、孢子、囊群盖和根状茎鳞片等形态学特征的对比研究,作者认为阴石粉背蕨应该作为金粉背蕨的异名处理。

关键词: 阴石粉背蕨, 金粉背蕨, 碎米蕨类, rbcL, trnL-F, matK


Total DNA from 27 species including Aleuritopteris humatifolia and Achrysophylla and related taxa was extracted in this research, and the rbcL, trnLF and matK sequences were amplified and sequenced. The sequences were aligned by ClustalX. The phylogenetic trees were constructed by Maximum parsimony methods and the intraspecific and interspecific genetic distance were computed in MEGA 60. The results showed as follows: no significant difference among rbcL, trnLF and matK sequences of one sample of Ahumatifolia and two samples of Achrysophy
lla, and the maximum genetic distance between Ahumatifolia and Achrysophylla were less than the minimum genetic distance between Ahumatifolia and other closely related species. Therefore, our study support the taxonomic treatment of reducing Ahumatifolia to synonym of Achrysophylla based on our phylogenetic analysis combining the evidences from their morphological characters of blades, spores, indusia, and rhizome scales.

Key words: Aleuritopteris humatifolia, A-chrysophylla, cheilanthoid ferns, rbcL, trnL-F, matK