Cyst-theca relationship and phylogenetic positions of Scrippsiella plana sp. nov. and S. spinifera (Peridiniales, Dinophyceae)

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dc.contributor.authorLuo Z.
dc.contributor.authorMertens K.N.
dc.contributor.authorBagheri S.
dc.contributor.authorAydin H.
dc.contributor.authorTakano Y.
dc.contributor.authorMatsuoka K.
dc.contributor.authorMcCarthy F.M.G.
dc.contributor.authorGu H.
dc.date.accessioned2024-07-22T08:11:54Z
dc.date.available2024-07-22T08:11:54Z
dc.date.issued2016
dc.description.abstractAbstract: Species belonging to the dinophyte genus Scrippsiella are frequently reported in marine waters, but information on their distribution in brackish environments is limited. Here we describe a new species, S. plana, through incubation of non-calcified cysts from sediments collected in the South China Sea and Caspian Sea. The vegetative cells consist of a conical epitheca and a rounded hypotheca with the plate formula of Po, X, 4′, 3a, 7′′, 5C+t, 5S, 5′′′, 2′′′′. It differs from other Scrippsiella species by its flattened body in dorsoventral view and a small first anterior intercalary (1a) plate (half the size of plate 3a). Scrippsiellaplana strains from the South China Sea and Caspian Sea share identical internal transcribed spacer (ITS) sequences, and show phenotypic plasticity and local adaptation in growth rate at various salinities, consistent with the environments in which they originated. In addition, two strains of S. spinifera were obtained by incubating ellipsoid cysts with calcareous spines from sediments collected along the Turkish and Hawaiian coast. They also share identical ITS sequences and differ from Duboscquodinium collinii (a parasite of tintinnids) only at two base pair positions (in the ITS2 region). Molecular phylogeny based on ITS and large subunit ribosomal DNA (LSU rDNA) sequences revealed that S. plana was nested within the Calciodinellum (CAL) clade and S. spinifera within the S. trochoidea (STR) clade. The phylogenetic position of ‘Peridinium’ wisconsinense is reported for the first time, which supports multiple transitions of the Peridiniales to freshwater. © 2016 British Phycological Society.
dc.identifier.DOI-ID10.1080/09670262.2015.1120348
dc.identifier.issn09670262
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15828
dc.language.isoEnglish
dc.publisherTaylor and Francis Ltd.
dc.rightsAll Open Access; Bronze Open Access
dc.subjectCaspian Sea
dc.subjectHawaii [United States]
dc.subjectPacific Ocean
dc.subjectSouth China Sea
dc.subjectTurkey
dc.subjectUnited States
dc.subjectCalciodinellum
dc.subjectDinophyceae
dc.subjectEpitheca
dc.subjectPeridiniales
dc.subjectPeridinium
dc.subjectPeridinium wisconsinense
dc.subjectScrippsiella
dc.subjectScrippsiella trochoidea
dc.subjectTintinnida
dc.subjectcoastal sediment
dc.subjectcyst
dc.subjectgrowth rate
dc.subjectincubation
dc.subjectlocal adaptation
dc.subjectmicrobial activity
dc.subjectphenotypic plasticity
dc.subjectphylogenetics
dc.subjectpopulation distribution
dc.subjectprotist
dc.titleCyst-theca relationship and phylogenetic positions of Scrippsiella plana sp. nov. and S. spinifera (Peridiniales, Dinophyceae)
dc.typeArticle

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