Taxonomy and molecular phylogeny of three marine benthic species of Haslea (Bacillariophyceae), with transfer of two species to Navicula

doi:10.1080/0269249X.2017.1401008

	Taxonomy and molecular phylogeny of three marine benthic species of Haslea (Bacillariophyceae), with transfer of two species to Navicula
	Li, Yuhang 1; Chen, Xumiao 1; Sun, Zhongmin 1,3; Xu, Kuidong 1,2,3
刊名	DIATOM RESEARCH
	2017
卷号	32 期号:4 页码:451-463
关键词	Benthic Diatoms Haslea Navicula New Combination China
ISSN号	0269-249X
DOI	10.1080/0269249X.2017.1401008
文献子类	Article
英文摘要	Using light, scanning and transmission electron microscopy, and SSU rDNA and rbcL gene sequencing, we investigated three marine benthic diatoms: Haslea avium Tiffany, Herwig et Sterrenburg; H. feriarum Tiffany et Sterrenburg and H. tsukamotoi Sterrenburg et Hinz collected from intertidal sediments in China. These are the first records of these three species from China. Our observations showed that the typical valve structure of Haslea, with an inner basal layer and an outer tegumental layer, and walls (saepes sensu Sterrenburg et al.) between them is not present in either H. tsukamotoi or H. avium. Moreover, the two species possess small helictoglossae, an internal apical thickened area and hooked terminal fissures reaching to the valve mantle, suggesting a close relationship with Navicula tripunctata, the type species of Navicula s.s. In molecular phylogenetic analyses, Haslea was polyphyletic, being divided into two separate clades: H. feriarum belonged to a clade that comprised only Haslea species, including the type H. ostrearia, while H. tsukamotoi and H. avium were within the Navicula clade. Therefore, we propose transferring H. tsukamotoi and H. avium to Navicula and suggest that the presence of continuous longitudinal strips on the external valve surface is not a synapomorphy, but rather a homoplastic character for Haslea.
WOS关键词	DIATOMS ; BLUE ; GYROSIGMA ; MODELS ; SEA
WOS研究方向	Marine & Freshwater Biology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000425688400005
资助机构	Nanji Islands National Marine Natural Reserve Postdoctoral Research Funding(NJKJ-2015-005) ; National Programme on Global Change and Air-Sea Interaction(GASI-01-02-02-02)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/10609]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Xu, Kuidong
作者单位	1.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Yuhang,Chen, Xumiao,Sun, Zhongmin,et al. Taxonomy and molecular phylogeny of three marine benthic species of Haslea (Bacillariophyceae), with transfer of two species to Navicula[J]. DIATOM RESEARCH,2017,32(4):451-463.
APA	Li, Yuhang,Chen, Xumiao,Sun, Zhongmin,&Xu, Kuidong.(2017).Taxonomy and molecular phylogeny of three marine benthic species of Haslea (Bacillariophyceae), with transfer of two species to Navicula.DIATOM RESEARCH,32(4),451-463.
MLA	Li, Yuhang,et al."Taxonomy and molecular phylogeny of three marine benthic species of Haslea (Bacillariophyceae), with transfer of two species to Navicula".DIATOM RESEARCH 32.4(2017):451-463.