Unravelling the hidden complexity in diversity and pigment composition of a colonial flagellate Synura sphagnicola (Chrysophyceae, Stramenopiles)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F23%3A00578515" target="_blank" >RIV/61388971:_____/23:00578515 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/23:10475066

Výsledek na webu

<a href="https://fottea.czechphycology.cz/pdfs/fot/2023/02/01.pdf" target="_blank" >https://fottea.czechphycology.cz/pdfs/fot/2023/02/01.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5507/fot.2022.021" target="_blank" >10.5507/fot.2022.021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unravelling the hidden complexity in diversity and pigment composition of a colonial flagellate Synura sphagnicola (Chrysophyceae, Stramenopiles)

Popis výsledku v původním jazyce

In this study, we aim to taxonomically evaluate a unique example of cryptic diversity in a freshwater protist species Synura sphagnicola, occurring at two evolutionary levels. First, we characterize two species, S. sphagnicola and S. rubra sp. nov., that diverged from one another approx. 14 Mya. These species are morpho-logically well differentiated by the morphology of silica scales. Second, we propose seven evolutionary young, but ecologically and geographically well differentiated lineages as separate sub-species, sphagnicola, agilis, borealis (within S. sphagnicola), rubra, ampla, bella and caelica (within S. rubra). In addition, we examine the autofluorescence and pigment composition of two selected strains, identifying fucoxanthin as a predominant carotenoid. We further show that the red droplets in the cytoplasm, a prominent feature of both species, are formed by a previously unknown pigment. Finally, we identify chlorophyll-c2 in S. sphagnicola. Since the lack of this pigment represents a major distinguishing character to discriminate between classes Synurophyceae and Chrysophyceae, we formally synonymize these taxa.

Název v anglickém jazyce

Unravelling the hidden complexity in diversity and pigment composition of a colonial flagellate Synura sphagnicola (Chrysophyceae, Stramenopiles)

Popis výsledku anglicky

In this study, we aim to taxonomically evaluate a unique example of cryptic diversity in a freshwater protist species Synura sphagnicola, occurring at two evolutionary levels. First, we characterize two species, S. sphagnicola and S. rubra sp. nov., that diverged from one another approx. 14 Mya. These species are morpho-logically well differentiated by the morphology of silica scales. Second, we propose seven evolutionary young, but ecologically and geographically well differentiated lineages as separate sub-species, sphagnicola, agilis, borealis (within S. sphagnicola), rubra, ampla, bella and caelica (within S. rubra). In addition, we examine the autofluorescence and pigment composition of two selected strains, identifying fucoxanthin as a predominant carotenoid. We further show that the red droplets in the cytoplasm, a prominent feature of both species, are formed by a previously unknown pigment. Finally, we identify chlorophyll-c2 in S. sphagnicola. Since the lack of this pigment represents a major distinguishing character to discriminate between classes Synurophyceae and Chrysophyceae, we formally synonymize these taxa.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Fottea

ISSN

1802-5439

e-ISSN

1805-4927

Svazek periodika

23

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

15

Strana od-do

149-163

Kód UT WoS článku

001090273500001

EID výsledku v databázi Scopus

2-s2.0-85176731140