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题名: Morphological Examination and Phylogenetic Analyses of Phycopeltis spp. (Trentepohliales, Ulvophyceae) from Tropical China
作者: Zhu, Huan1, 2; Zhao, Zhijuan1, 2; Xia, Shuang1, 3; Hu, Zhengyu1; Liu, Guoxiang1
通讯作者: Liu, GX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan, Peoples R China.
刊名: PLOS ONE
发表日期: 2015-02-02
DOI: 10.1371/journal.pone.0114936
卷: 10, 期:2, 页:UNSP e0114936
收录类别: SCI
文章类型: Article
部门归属: [Zhu, Huan ; Zhao, Zhijuan ; Xia, Shuang ; Hu, Zhengyu ; Liu, Guoxiang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan, Peoples R China ; [Zhu, Huan ; Zhao, Zhijuan] Univ Chinese Acad Sci, Beijing, Peoples R China ; [Xia, Shuang] South Cent Univ Nationalities, Coll Life Sci, Wuhan, Peoples R China
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: During an investigation of Trentepohliales (Ulvophyceae) from tropical areas in China, four species of the genus Phycopeltis were identified: Phycopeltis aurea, P. epiphyton, P. flabellata and P. prostrata. The morphological characteristics of both young and adult thalli were observed and compared. Three species (P. flabellata, P. aurea and P. epiphyton) shared a symmetrical development with dichotomously branching vegetative cells during early stages; conversely, P. prostrata had dishevelled filaments with no dichotomously branching filaments and no symmetrical development. The adult thalli of the former three species shared common morphological characteristics, such as equally dichotomous filaments, absence of erect hair and gametangia formed in prostate vegetative filaments. Phylogenetic analyses based on SSU and ITS rDNA sequences showed that the three morphologically similar species were in a clade that was sister to a clade containing T. umbrina and T. abietina, thus confirming morphological monophyly. Conversely, Phycopeltis prostrata, a species with erect filaments, sessile gametangia on the basal erect hair, larger length/width ratio of vegetative cells and very loosely coalescent prostrate filaments, branched separately from the core Phycopeltis group and the T. umbrina and T. abietina clade. Based on morphological and molecular evidence, the genus Phycopeltis was paraphyletic. Furthermore, the traditional taxonomic criteria for Phycopeltis must be reassessed based on phylogeny using more species. A new circumscription of the Phycopeltis and the erection of new genera are recommended.
关键词[WOS]: PRINTZINA TRENTEPOHLIALES ; SEQUENCE ALIGNMENT ; CHLOROPHYTA ; DIVERSITY ; INTERFACE ; EVOLUTION ; TAXONOMY ; IRELAND ; ECOLOGY ; AFRICA
语种: 英语
WOS记录号: WOS:000348821200005
ISSN号: 1932-6203
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/25775
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.South Cent Univ Nationalities, Coll Life Sci, Wuhan, Peoples R China
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