Phylogenetic Analysis Reveals that the 'Radial Centric' Diatom Orthoseira Thwaites (Orthoseiraceae, Bacillariophyta) is a Member of a 'Multipolar' Diatom Lineage

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897544" target="_blank" >RIV/60076658:12310/18:43897544 - isvavai.cz</a>

Result on the web

<a href="https://reader.elsevier.com/reader/sd/pii/S1434461018300920?token=19A23CAB0D602E6D9E9E1212FBE228A28D27CD961C6782BE0783F048DE6EE52C5BAC9E6D6875675B6FFE5A6563A3D2E9" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S1434461018300920?token=19A23CAB0D602E6D9E9E1212FBE228A28D27CD961C6782BE0783F048DE6EE52C5BAC9E6D6875675B6FFE5A6563A3D2E9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.protis.2018.08.005" target="_blank" >10.1016/j.protis.2018.08.005</a>

Result language

angličtina

Original language name

Phylogenetic Analysis Reveals that the 'Radial Centric' Diatom Orthoseira Thwaites (Orthoseiraceae, Bacillariophyta) is a Member of a 'Multipolar' Diatom Lineage

Original language description

The diatom genus Orthoseira Thwaites (Bacillariophyta) is a ubiquitous taxon in aerial diatom assemblages, with species found globally. Cylindrical cell shape and radial symmetry of this genus has led to its historical placement in the Coscinodiscophyceae (&apos;radial centric&apos; diatoms), but its systematic relationships have remained uncertain. We present a five-gene phylogeny, based on nuclear (nSSU rDNA) and chloroplast (rbcL, psbC, psbA, and psaB) genes to determine the phylogenetic placement of Orthoseira among the diatoms. The concatenated multi-gene phylogenies and nSSU-only gene tree demonstrate that Orthoseira is deeply embedded within a clade of the Mediophyceae (&apos;multipolar centric&apos; diatoms). Throughout all phylogenetic analyses, Orthoseira was shown to be sister to the genera Terpsinoe and Hydrosera. Through comparison of topologies reflecting competing hypotheses about the placement of Orthoseira, it was determined that the hypothesis that Orthoseira, represented here by O. dendroteres and O. roeseana, is a member of the Melosirales should be rejected. Therefore, lack of morphological similarity between Hydrosera, Orthoseira, and Terpsinoe is hypothesized to be the result of changes in habitat preferences that lead to an ancient divergence event between the Orthoseirales and the Hydrosera, Terpsinoe clade. (C) 2018 Elsevier GmbH. All rights reserved.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Protist

ISSN

1434-4610

e-ISSN

—

Volume of the periodical

169

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

23

Pages from-to

803-825

UT code for WoS article

000452432800002

EID of the result in the Scopus database

2-s2.0-85056611351