Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.

The Mycobacterium tuberculosis (MTB) Beijing family isolates are geographically widespread, and there are examples of Beijing isolates that are hypervirulent and associated with drug resistance. One-fourth of Beijing genotype isolates found in Russia belong to the B0/W148 group. The aim of the prese...

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Autores principales:	Egor A Shitikov, Julia A Bespyatykh, Dmitry S Ischenko, Dmitry G Alexeev, Irina Y Karpova, Elena S Kostryukova, Yulia D Isaeva, Elena Y Nosova, Igor V Mokrousov, Anna A Vyazovaya, Olga V Narvskaya, Boris I Vishnevsky, Tatiana F Otten, Viacheslav Iu Zhuravlev, Peter K Yablonsky, Elena N Ilina, Vadim M Govorun
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3ddfd9ec325345188c79675dc232480d
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spelling	oai:doaj.org-article:3ddfd9ec325345188c79675dc232480d2021-11-18T08:38:27ZUnusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.1932-620310.1371/journal.pone.0084971https://doaj.org/article/3ddfd9ec325345188c79675dc232480d2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24416324/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The Mycobacterium tuberculosis (MTB) Beijing family isolates are geographically widespread, and there are examples of Beijing isolates that are hypervirulent and associated with drug resistance. One-fourth of Beijing genotype isolates found in Russia belong to the B0/W148 group. The aim of the present study was to investigate features of these endemic strains on a genomic level. Four Russian clinical isolates of this group were sequenced, and the data obtained was compared with published sequences of various MTB strain genomes, including genome of strain W-148 of the same B0/W148 group. The comparison of the W-148 and H37Rv genomes revealed two independent inversions of large segments of the chromosome. The same inversions were found in one of the studied strains after deep sequencing using both the fragment and mate-paired libraries. Additionally, inversions were confirmed by RFLP hybridization analysis. The discovered rearrangements were verified by PCR in all four newly sequenced strains in the study and in four additional strains of the same Beijing B0/W148 group. The other 32 MTB strains from different phylogenetic lineages were tested and revealed no inversions. We suggest that the initial largest inversion changed the orientation of the three megabase (Mb) segment of the chromosome, and the second one occurred in the previously inverted region and partly restored the orientation of the 2.1 Mb inner segment of the region. This is another remarkable example of genomic rearrangements in the MTB in addition to the recently published of large-scale duplications. The described cases suggest that large-scale genomic rearrangements in the currently circulating MTB isolates may occur more frequently than previously considered, and we hope that further studies will help to determine the exact mechanism of such events.Egor A ShitikovJulia A BespyatykhDmitry S IschenkoDmitry G AlexeevIrina Y KarpovaElena S KostryukovaYulia D IsaevaElena Y NosovaIgor V MokrousovAnna A VyazovayaOlga V NarvskayaBoris I VishnevskyTatiana F OttenViacheslav Iu ZhuravlevPeter K YablonskyElena N IlinaVadim M GovorunPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e84971 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Egor A Shitikov Julia A Bespyatykh Dmitry S Ischenko Dmitry G Alexeev Irina Y Karpova Elena S Kostryukova Yulia D Isaeva Elena Y Nosova Igor V Mokrousov Anna A Vyazovaya Olga V Narvskaya Boris I Vishnevsky Tatiana F Otten Viacheslav Iu Zhuravlev Peter K Yablonsky Elena N Ilina Vadim M Govorun Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.
description	The Mycobacterium tuberculosis (MTB) Beijing family isolates are geographically widespread, and there are examples of Beijing isolates that are hypervirulent and associated with drug resistance. One-fourth of Beijing genotype isolates found in Russia belong to the B0/W148 group. The aim of the present study was to investigate features of these endemic strains on a genomic level. Four Russian clinical isolates of this group were sequenced, and the data obtained was compared with published sequences of various MTB strain genomes, including genome of strain W-148 of the same B0/W148 group. The comparison of the W-148 and H37Rv genomes revealed two independent inversions of large segments of the chromosome. The same inversions were found in one of the studied strains after deep sequencing using both the fragment and mate-paired libraries. Additionally, inversions were confirmed by RFLP hybridization analysis. The discovered rearrangements were verified by PCR in all four newly sequenced strains in the study and in four additional strains of the same Beijing B0/W148 group. The other 32 MTB strains from different phylogenetic lineages were tested and revealed no inversions. We suggest that the initial largest inversion changed the orientation of the three megabase (Mb) segment of the chromosome, and the second one occurred in the previously inverted region and partly restored the orientation of the 2.1 Mb inner segment of the region. This is another remarkable example of genomic rearrangements in the MTB in addition to the recently published of large-scale duplications. The described cases suggest that large-scale genomic rearrangements in the currently circulating MTB isolates may occur more frequently than previously considered, and we hope that further studies will help to determine the exact mechanism of such events.
format	article
author	Egor A Shitikov Julia A Bespyatykh Dmitry S Ischenko Dmitry G Alexeev Irina Y Karpova Elena S Kostryukova Yulia D Isaeva Elena Y Nosova Igor V Mokrousov Anna A Vyazovaya Olga V Narvskaya Boris I Vishnevsky Tatiana F Otten Viacheslav Iu Zhuravlev Peter K Yablonsky Elena N Ilina Vadim M Govorun
author_facet	Egor A Shitikov Julia A Bespyatykh Dmitry S Ischenko Dmitry G Alexeev Irina Y Karpova Elena S Kostryukova Yulia D Isaeva Elena Y Nosova Igor V Mokrousov Anna A Vyazovaya Olga V Narvskaya Boris I Vishnevsky Tatiana F Otten Viacheslav Iu Zhuravlev Peter K Yablonsky Elena N Ilina Vadim M Govorun
author_sort	Egor A Shitikov
title	Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.
title_short	Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.
title_full	Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.
title_fullStr	Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.
title_full_unstemmed	Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.
title_sort	unusual large-scale chromosomal rearrangements in mycobacterium tuberculosis beijing b0/w148 cluster isolates.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/3ddfd9ec325345188c79675dc232480d
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Unusual large-scale chromosomal rearrangements in Mycobacterium tuberculosis Beijing B0/W148 cluster isolates.

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