Olisthodiscus represents a new class of Ochrophyta
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00557215" target="_blank" >RIV/60077344:_____/21:00557215 - isvavai.cz</a>
Alternative codes found
RIV/61988987:17310/21:A2202BSZ RIV/60076658:12310/21:43903447
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1111/jpy.13155" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/jpy.13155</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jpy.13155" target="_blank" >10.1111/jpy.13155</a>
Alternative languages
Result language
angličtina
Original language name
Olisthodiscus represents a new class of Ochrophyta
Original language description
The phylogenetic diversity of Ochrophyta, a diverse and ecologically important radiation of algae, is still incompletely understood even at the level of the principal lineages. One taxon that has eluded simple classification is the marine flagellate genus Olisthodiscus. We investigated Olisthodiscus luteus K-0444 and documented its morphological and genetic differences from the NIES-15 strain, which we described as Olisthodiscus tomasii sp. nov. Phylogenetic analyses of combined 18S and 28S rRNA sequences confirmed that Olisthodiscus constitutes a separate, deep, ochrophyte lineage, but its position could not be resolved. To overcome this problem, we sequenced the plastid genome of O. luteus K-0444 and used the new data in multigene phylogenetic analyses, which suggested that Olisthodiscus is a sister lineage of the class Pinguiophyceae within a broader clade additionally including Chrysophyceae, Synchromophyceae, and Eustigmatophyceae. Surprisingly, the Olisthodiscus plastid genome contained three genes, ycf80, cysT, and cysW, inherited from the rhodophyte ancestor of the ochrophyte plastid yet lost from all other ochrophyte groups studied so far. Combined with nuclear genes for CysA and Sbp proteins, Olisthodiscus is the only known ochrophyte possessing a plastidial sulfate transporter SulT. In addition, the finding of a cemA gene in the Olisthodiscus plastid genome and an updated phylogenetic analysis ruled out the previously proposed hypothesis invoking horizontal cemA transfer from a green algal plastid into Synurales. Altogether, Olisthodiscus clearly represents a novel phylogenetically distinct ochrophyte lineage, which we have proposed as a new class, Olisthodiscophyceae.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10601 - Cell biology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Phycology
ISSN
0022-3646
e-ISSN
1529-8817
Volume of the periodical
57
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
25
Pages from-to
1094-1118
UT code for WoS article
000640086500001
EID of the result in the Scopus database
2-s2.0-85104231725