Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones

The present research aimed to evaluate the diversity of all monkeypox virus strains with a special focus on recently isolated ones by a comprehensive phylogenetic analysis of all available sequences, based on the concatenate of four viral genes. Almost all current strains from 2022 showed a high lev...

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Main Authors: Mária Benkő, Balázs Harrach, Győző L. Kaján
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844023001020
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author Mária Benkő
Balázs Harrach
Győző L. Kaján
author_facet Mária Benkő
Balázs Harrach
Győző L. Kaján
author_sort Mária Benkő
collection DOAJ
description The present research aimed to evaluate the diversity of all monkeypox virus strains with a special focus on recently isolated ones by a comprehensive phylogenetic analysis of all available sequences, based on the concatenate of four viral genes. Almost all current strains from 2022 showed a high level of similarity to each other on the analyzed stretches: 218 strains shared identical sequence. Among all analyzed strains, the highest number of differences was counted compared to a RefSeq strain (Zaire-96-I-16) on the whole concatenate. Our analysis supported the distinction between Clade I (formerly Congo Basin clade), IIa and IIb (together formerly West African clade) strains and classified all 2022 strains in the last one. The high number of differences and long branch observable concerning strain Zaire-96-I-16 is most probably caused by a sequencing error. As this strain represents one of the two available reference sequences in GenBank, it is recommendable to confirm or exclude the concerning mutation. The developed method, based on four gene sequences, reflected the established whole-genome-based intraspecies classification. Although this method provides significantly less information about the strains compared to whole genome analyses, since its resolution is much lower, it still enables the rapid subspecies classification of the strains into the established clades. The genes in the analyzed concatenate are so conserved that further differentiation of contemporary strains is impossible; these strains are identical in the analyzed sections. On the other hand, since whole genome analyses are compute-intensive, the described method offers a simpler and more accessible alternative for monitoring and preliminary typing of newly sequenced monkeypox virus strains.
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spelling doaj.art-20d842ab35e647b89b15bdcf329de5f52023-02-03T04:59:36ZengElsevierHeliyon2405-84402023-01-0191e12895Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary onesMária Benkő0Balázs Harrach1Győző L. Kaján2Veterinary Medical Research Institute, Hungária krt. 21, 1143 Budapest, HungaryVeterinary Medical Research Institute, Hungária krt. 21, 1143 Budapest, HungaryCorresponding author.; Veterinary Medical Research Institute, Hungária krt. 21, 1143 Budapest, HungaryThe present research aimed to evaluate the diversity of all monkeypox virus strains with a special focus on recently isolated ones by a comprehensive phylogenetic analysis of all available sequences, based on the concatenate of four viral genes. Almost all current strains from 2022 showed a high level of similarity to each other on the analyzed stretches: 218 strains shared identical sequence. Among all analyzed strains, the highest number of differences was counted compared to a RefSeq strain (Zaire-96-I-16) on the whole concatenate. Our analysis supported the distinction between Clade I (formerly Congo Basin clade), IIa and IIb (together formerly West African clade) strains and classified all 2022 strains in the last one. The high number of differences and long branch observable concerning strain Zaire-96-I-16 is most probably caused by a sequencing error. As this strain represents one of the two available reference sequences in GenBank, it is recommendable to confirm or exclude the concerning mutation. The developed method, based on four gene sequences, reflected the established whole-genome-based intraspecies classification. Although this method provides significantly less information about the strains compared to whole genome analyses, since its resolution is much lower, it still enables the rapid subspecies classification of the strains into the established clades. The genes in the analyzed concatenate are so conserved that further differentiation of contemporary strains is impossible; these strains are identical in the analyzed sections. On the other hand, since whole genome analyses are compute-intensive, the described method offers a simpler and more accessible alternative for monitoring and preliminary typing of newly sequenced monkeypox virus strains.http://www.sciencedirect.com/science/article/pii/S2405844023001020MonkeypoxPhylogenetic analysisRefSeq
spellingShingle Mária Benkő
Balázs Harrach
Győző L. Kaján
Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones
Heliyon
Monkeypox
Phylogenetic analysis
RefSeq
title Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones
title_full Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones
title_fullStr Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones
title_full_unstemmed Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones
title_short Phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones
title_sort phylogenetic analysis of all available monkeypox virus strains shows the close relatedness of contemporary ones
topic Monkeypox
Phylogenetic analysis
RefSeq
url http://www.sciencedirect.com/science/article/pii/S2405844023001020
work_keys_str_mv AT mariabenko phylogeneticanalysisofallavailablemonkeypoxvirusstrainsshowsthecloserelatednessofcontemporaryones
AT balazsharrach phylogeneticanalysisofallavailablemonkeypoxvirusstrainsshowsthecloserelatednessofcontemporaryones
AT gyozolkajan phylogeneticanalysisofallavailablemonkeypoxvirusstrainsshowsthecloserelatednessofcontemporaryones