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	Morphological variability and genetic diversity in five species of Skeletonema (Bacillariophyta)
	Cheng, Jinfeng ; Li, Yang ; Liang, Junrong ; Gao, Yahui ; Gao YH(高亚辉) ; Wang, Peng ; Lin, Xin ; Cheng, Jinfeng（ NW A&F Univ, Sch Life Sci） ; Ho Kin-Chung（ Open Univ Hong Kong）
	2008
关键词	Morphological variability Genetic diversity Skeletonema SSU rDNA
英文摘要	Twelve strains of Skeletonema from Chinese coastal waters and another strain from the West Sea of Korea were examined using light microscopy (LM), scanning and transmission electron microscopy (SEM, TEM), and small subunit (SSU) rDNA sequence analysis. We identified four species of Skeletonema: S. marinoi Sarno et Zingone, S. subsalsum (A. Cleve) Bethge, S. dohrnii Sarno et Kooistra, S. tropicum Cleve, as well as a Skeletonema-like species. These are the first records of S. marinoi, S. dohrnii and S. subsalsum in China. The Skeletonema-like species, MMDL5067, was isolated from the estuary of the Changjiang River. The morphologic and phylogenetic characteristics of this species are not correspond to those of any previously published Skeletonema species. The intercalary fultoportula processes (IFPPs) has long open tubes, and the intercalary rimoportula process (IRP) is short and located inside the rim of the IFPPs. Phylogenetic analysis revealed that MMDL5630 clustered with S. tropicum in the NJ and MP trees, but its IRPs differed from those of previously described specimens of S. tropicum. The IRP is partially open, with an elongated opening at the base of the tube, and is longer than the IFPPs. Some specimens of S. marinoi and S. dohrnii also have longer tubular IRPs than the IFPPs. Compared to previously described specimens of S. marinoi and S. dohrnii, these two specimens we identified have shorter IRPs. Our results reflect the ambiguity and diversity of Skeletonema taxonomy. They are also significant for the future identification and management of red tides caused by Skeletonema in the seas around China. (C) 2008 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved.; Major State Basic Research Development Program of China [2005CB422305]; National Natural Science Foundation of China [40476055, 40676082]
语种	英语
出版者	ELSEVIER SCIENCE INC
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1016/j.pnsc.2008.05.002]
专题	生命科学－已发表论文
推荐引用方式 GB/T 7714	Cheng, Jinfeng,Li, Yang,Liang, Junrong,et al. Morphological variability and genetic diversity in five species of Skeletonema (Bacillariophyta)[J],2008.
APA	Cheng, Jinfeng.,Li, Yang.,Liang, Junrong.,Gao, Yahui.,高亚辉.,...&Ho Kin-Chung.(2008).Morphological variability and genetic diversity in five species of Skeletonema (Bacillariophyta)..
MLA	Cheng, Jinfeng,et al."Morphological variability and genetic diversity in five species of Skeletonema (Bacillariophyta)".(2008).

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