Phylogeny of Praestephanos gen. nov. (Thalassiosirales, Bacillariophyceae) based on Stephanodiscus suzukii, and related freshwater thalassiosiroid diatoms SCOPUS

Title
Phylogeny of Praestephanos gen. nov. (Thalassiosirales, Bacillariophyceae) based on Stephanodiscus suzukii, and related freshwater thalassiosiroid diatoms
Author(s)
Tuji, A.; Mohri, Y.; Ki, J.-S.; Jung, S.W.; Julius, M.L.
KIOST Author(s)
Jung, Seung Won(정승원)
Publication Year
2014
Abstract
A new genus, Praestephanos, is described with its type species based on Stephanodiscus suzukii. In addition, two new combinations are described: P. triporus and P. carconensis. This genus is similar to the genus Stephanodiscus, however, the pattern of the areolae changes at the level of the marginal fultoportulae but not at the level of the rimportulae or spines, and this differs from Stephanodiscus. Five clades, Stephanodiscus, Cyclostephanos, Cyclotella ocellata-Handmannia complex, Praestephanos and Discostella were detected by molecular analysis. The Discostella clade has the most basal position of these five clades. The Praestephanos clade holds a clearly basal position in relation to the Stephanodiscus and Cyclostephanos clades. However, the relationship between Praestephanos and Cyclotella ocellata-Handmannia was uncertain. Since these four clades separated with short branches in the phylogenetic tree, these four clades (excluding Discostella) may have evolved during a very short geological period. © The Plankton Society of Japan.
ISSN
1880-8247
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2931
DOI
10.3800/pbr.9.132
Bibliographic Citation
Plankton and Benthos Research, v.9, no.2, pp.132 - 140, 2014
Publisher
Plankton Society of Japan
Subject
cladistics; diatom; molecular analysis; new genus; phylogeny; Bacillariophyceae; Bacillariophyta; Stephanodiscus carconensis; Stephanodiscus suzukii; Thalassiosirales
Keywords
Post-Miocene type; Praestephanos carconensis; Praestephanos triporus; Stephanodiscus carconensis
Type
Article
Language
English
Document Type
Article
Publisher
Plankton Society of Japan
Related Researcher
Research Interests

Phytoplatnkon taxonomy,Phytoplatnkon physiology,Phycosphere,식물플랑크톤 분류,식물플랑크톤 생리,식물플랑크톤, 바이러스, 박테리아 관계

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