The oxymonad genome displays canonical eukaryotic complexity in the absence of a mitochondrion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F19%3AA200229A" target="_blank" >RIV/61988987:17310/19:A200229A - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/19:10403765

Výsledek na webu

<a href="https://watermark.silverchair.com/msz147.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAmQwggJgBgkqhkiG9w0BBwagggJRMIICTQIBADCCAkYGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMR8Kao1iEMxi9XnL7AgEQgIICFw0o9oem1kuwCLKSddPOggCTZXqiibYkocj3PJbSJk9q_zV" target="_blank" >https://watermark.silverchair.com/msz147.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAmQwggJgBgkqhkiG9w0BBwagggJRMIICTQIBADCCAkYGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMR8Kao1iEMxi9XnL7AgEQgIICFw0o9oem1kuwCLKSddPOggCTZXqiibYkocj3PJbSJk9q_zV</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/molbev/msz147" target="_blank" >10.1093/molbev/msz147</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The oxymonad genome displays canonical eukaryotic complexity in the absence of a mitochondrion

Popis výsledku v původním jazyce

The discovery that the protist Monocercomonoides exilis completely lacks mitochondria demonstrates that these organelles are not absolutely essential to eukaryotic cells. However, the degree to which the metabolism and cellular systems of this organism have adapted to the loss of mitochondria is unknown. Here, we report an extensive analysis of the M. exilis genome to address this question. Unexpectedly, we find that M. exilis genome structure and content is similar in complexity to other eukaryotes and less 'reduced' than genomes of some other protists from the Metamonada group to which it belongs. Furthermore, the predicted cytoskeletal systems, the organization of endomembrane systems, and biosynthetic pathways also display canonical eukaryotic complexity. The only apparent preadaptation that permitted the loss of mitochondria was the acquisition of the SUF system for Fe-S cluster assembly and the loss of glycine cleavage system. Changes in other systems, including in amino acid metabolism and oxidative stress response, were coincident with the loss of mitochondria but are likely adaptations to the microaerophilic and endobiotic niche rather than the mitochondrial loss per se. Apart from the lack of mitochondria and peroxisomes, we show that M. exilis is a fully elaborated eukaryotic cell that is a promising model system in which eukaryotic cell biology can be investigated in the absence of mitochondria.

Název v anglickém jazyce

The oxymonad genome displays canonical eukaryotic complexity in the absence of a mitochondrion

Popis výsledku anglicky

The discovery that the protist Monocercomonoides exilis completely lacks mitochondria demonstrates that these organelles are not absolutely essential to eukaryotic cells. However, the degree to which the metabolism and cellular systems of this organism have adapted to the loss of mitochondria is unknown. Here, we report an extensive analysis of the M. exilis genome to address this question. Unexpectedly, we find that M. exilis genome structure and content is similar in complexity to other eukaryotes and less 'reduced' than genomes of some other protists from the Metamonada group to which it belongs. Furthermore, the predicted cytoskeletal systems, the organization of endomembrane systems, and biosynthetic pathways also display canonical eukaryotic complexity. The only apparent preadaptation that permitted the loss of mitochondria was the acquisition of the SUF system for Fe-S cluster assembly and the loss of glycine cleavage system. Changes in other systems, including in amino acid metabolism and oxidative stress response, were coincident with the loss of mitochondria but are likely adaptations to the microaerophilic and endobiotic niche rather than the mitochondrial loss per se. Apart from the lack of mitochondria and peroxisomes, we show that M. exilis is a fully elaborated eukaryotic cell that is a promising model system in which eukaryotic cell biology can be investigated in the absence of mitochondria.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10603 - Genetics and heredity (medical genetics to be 3)

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Molecular Biology and Evolution

ISSN

0737-4038

e-ISSN

—

Svazek periodika

36

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

21

Strana od-do

2292-2312

Kód UT WoS článku

000501734200017

EID výsledku v databázi Scopus

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