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题名: Morphological examination and phylogenetic position of two newly recorded freshwater Cryptomonas species (Cryptophyceae) from China
作者: Xia, Shuang1, 2; Liu, Guo-Xiang1; Hu, Zheng-Yu1
通讯作者: Liu, GX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词: China ; Cryptomonas ; Cryptomonas curvata ; Cryptomonas obovata ; new records ; nuclear and nucleomorph phylogeny
刊名: JOURNAL OF SYSTEMATICS AND EVOLUTION
发表日期: 2013-03-01
DOI: 10.1111/j.1759-6831.2012.00227.x
卷: 51, 期:2, 页:212-222
收录类别: SCI
文章类型: Article
部门归属: [Xia, Shuang; Liu, Guo-Xiang; Hu, Zheng-Yu] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Xia, Shuang] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China [30970501]
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
摘要: Two freshwater cryptomonads, Cryptomonas obovata Skuja and Cryptomonas curvata Ehrenberg, are reported for the first time in China. Identification was based on light microscopy and scanning electron microscopy. Cryptomonas obovata was characterized by its obovoid cell shape, lobed cell subapex, and a large number of starch grains. Cryptomonas curvata was characterized by its sigmoid cell shape, rostrate cell apex, and numerous pyrenoids. Nuclear and nucleomorph small subunit rDNA phylogenetic analyses revealed Cryptomonas curvata collected from China was very similar to C. curvata strains cultivated in Germany, and the closest relative of C. obovata was found to be C. pyrenoidifera Geitler. Controversially, some quite morphologically different members of the genus Cryptomonas Ehrenberg were clustered into the same group in phylogeny analyses, which emphasized the complexity of the genus Cryptomonas.
英文摘要: Two freshwater cryptomonads, Cryptomonas obovata Skuja and Cryptomonas curvata Ehrenberg, are reported for the first time in China. Identification was based on light microscopy and scanning electron microscopy. Cryptomonas obovata was characterized by its obovoid cell shape, lobed cell subapex, and a large number of starch grains. Cryptomonas curvata was characterized by its sigmoid cell shape, rostrate cell apex, and numerous pyrenoids. Nuclear and nucleomorph small subunit rDNA phylogenetic analyses revealed Cryptomonas curvata collected from China was very similar to C. curvata strains cultivated in Germany, and the closest relative of C. obovata was found to be C. pyrenoidifera Geitler. Controversially, some quite morphologically different members of the genus Cryptomonas Ehrenberg were clustered into the same group in phylogeny analyses, which emphasized the complexity of the genus Cryptomonas.
关键词[WOS]: RIBOSOMAL-RNA SEQUENCES ; 3 GORGES RESERVOIR ; MOLECULAR PHYLOGENY ; GENUS CRYPTOMONAS ; RDNA PHYLOGENY ; NUCLEOMORPH ; NUCLEAR ; PHYTOPLANKTON ; SUBUNIT ; RHODOPHYTA
语种: 英语
WOS记录号: WOS:000325127900009
ISSN号: 1674-4918
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19638
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, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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