Unequal distribution of genes and chromosomes refers to nuclear diversification in the binucleated Giardia intestinalis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064165%3A_____%2F19%3A10399580" target="_blank" >RIV/00064165:_____/19:10399580 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11110/19:10399580

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JZm_BSu0Y0" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JZm_BSu0Y0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijpara.2019.01.003" target="_blank" >10.1016/j.ijpara.2019.01.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unequal distribution of genes and chromosomes refers to nuclear diversification in the binucleated Giardia intestinalis

Popis výsledku v původním jazyce

The single-celled parasite Giardia intestinalis (Diplomonadida) has two equally sized nuclei in one cell. The nuclei have been considered identical. We have previously shown that they contain different chromosomal sets and proceed through the cell cycle with some asynchrony. Here, we demonstrate by fluorescence in situ hybridization that several genes from chromosome 5 are lost in one of the two nuclei of the WBc6 Giardia line. The missing segment stretches over at least 50 kb near the 5&apos; chromosome end. In both WB and WBc6 Giardia cell lines, chromosome 5 is trisomic in one nucleus and monosomic in the other nucleus. The described chromosomal deletion has always been observed at the monosomic chromosome in WBc6; however, the deletion was not detected in the parent line WB. The chromosomal segment was thus initially lost after biological cloning of WB, which gave rise to clone WBc6. We show that Giardia is capable of carrying out gene expression from only one nucleus. The two nuclei display a certain level of diversity, making each of them irreplaceable. The doubled karyomastigonts of diplomonads likely have separate functions both in the mastigont/flagellar organization and in chromosomal and gene content. To our knowledge, our results offer the first methodical approach to differentiating the two, so far indistinguishable nuclei. (C) 2019 Australian Society for Parasitology. Published by Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Unequal distribution of genes and chromosomes refers to nuclear diversification in the binucleated Giardia intestinalis

Popis výsledku anglicky

The single-celled parasite Giardia intestinalis (Diplomonadida) has two equally sized nuclei in one cell. The nuclei have been considered identical. We have previously shown that they contain different chromosomal sets and proceed through the cell cycle with some asynchrony. Here, we demonstrate by fluorescence in situ hybridization that several genes from chromosome 5 are lost in one of the two nuclei of the WBc6 Giardia line. The missing segment stretches over at least 50 kb near the 5&apos; chromosome end. In both WB and WBc6 Giardia cell lines, chromosome 5 is trisomic in one nucleus and monosomic in the other nucleus. The described chromosomal deletion has always been observed at the monosomic chromosome in WBc6; however, the deletion was not detected in the parent line WB. The chromosomal segment was thus initially lost after biological cloning of WB, which gave rise to clone WBc6. We show that Giardia is capable of carrying out gene expression from only one nucleus. The two nuclei display a certain level of diversity, making each of them irreplaceable. The doubled karyomastigonts of diplomonads likely have separate functions both in the mastigont/flagellar organization and in chromosomal and gene content. To our knowledge, our results offer the first methodical approach to differentiating the two, so far indistinguishable nuclei. (C) 2019 Australian Society for Parasitology. Published by Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10600 - Biological sciences

Projekt

<a href="/cs/project/NV15-33369A" target="_blank" >NV15-33369A: Využití vlastností izolátů Giardia intestinalis, původce nejběžnější střevní protozoární nákazy, pro diagnostiku</a><br>

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

International Journal for Parasitology

ISSN

0020-7519

e-ISSN

—

Svazek periodika

49

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

463-470

Kód UT WoS článku

000470043500007

EID výsledku v databázi Scopus

2-s2.0-85063272996