Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies

Phylogenetic trees of coronaviruses are difficult to interpret because they undergo frequent genomic recombination. Here, we propose a new method, coloured genomic bootstrap (CGB) barcodes, to highlight the polyphyletic origins of human sarbecoviruses and understand their host and geographic origins...

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Main Authors: Alexandre Hassanin, Opale Rambaud
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/15/2/406
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author Alexandre Hassanin
Opale Rambaud
author_facet Alexandre Hassanin
Opale Rambaud
author_sort Alexandre Hassanin
collection DOAJ
description Phylogenetic trees of coronaviruses are difficult to interpret because they undergo frequent genomic recombination. Here, we propose a new method, coloured genomic bootstrap (CGB) barcodes, to highlight the polyphyletic origins of human sarbecoviruses and understand their host and geographic origins. The results indicate that SARS-CoV and SARS-CoV-2 contain genomic regions of mixed ancestry originating from horseshoe bat (<i>Rhinolophus</i>) viruses. First, different regions of SARS-CoV share exclusive ancestry with five <i>Rhinolophus</i> viruses from Southwest China (RfYNLF/31C: 17.9%; RpF46: 3.3%; RspSC2018: 2.0%; Rpe3: 1.3%; RaLYRa11: 1.0%) and 97% of its genome can be related to bat viruses from Yunnan (China), supporting its emergence in the <i>Rhinolophus</i> species of this province. Second, different regions of SARS-CoV-2 share exclusive ancestry with eight <i>Rhinolophus</i> viruses from Yunnan (RpYN06: 5.8%; RaTG13: 4.8%; RmYN02: 3.8%), Laos (RpBANAL103: 3.3%; RmarBANAL236: 1.7%; RmBANAL52: 1.0%; RmBANAL247: 0.7%), and Cambodia (RshSTT200: 2.3%), and 98% of its genome can be related to bat viruses from northern Laos and Yunnan, supporting its emergence in the <i>Rhinolophus</i> species of this region. Although CGB barcodes are very useful in retracing the origins of human sarbecoviruses, further investigations are needed to better take into account the diversity of coronaviruses in bats from Cambodia, Laos, Myanmar, Thailand and Vietnam.
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spelling doaj.art-7e6a57af462a4a619f9a27c3841a09f62023-11-16T23:48:35ZengMDPI AGViruses1999-49152023-01-0115240610.3390/v15020406Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case StudiesAlexandre Hassanin0Opale Rambaud1Institut de Systématique, Évolution, Biodiversité (ISYEB), Sorbonne Université, CNRS, EPHE, MNHN, UA, 75231 Paris, FranceInstitut de Systématique, Évolution, Biodiversité (ISYEB), Sorbonne Université, CNRS, EPHE, MNHN, UA, 75231 Paris, FrancePhylogenetic trees of coronaviruses are difficult to interpret because they undergo frequent genomic recombination. Here, we propose a new method, coloured genomic bootstrap (CGB) barcodes, to highlight the polyphyletic origins of human sarbecoviruses and understand their host and geographic origins. The results indicate that SARS-CoV and SARS-CoV-2 contain genomic regions of mixed ancestry originating from horseshoe bat (<i>Rhinolophus</i>) viruses. First, different regions of SARS-CoV share exclusive ancestry with five <i>Rhinolophus</i> viruses from Southwest China (RfYNLF/31C: 17.9%; RpF46: 3.3%; RspSC2018: 2.0%; Rpe3: 1.3%; RaLYRa11: 1.0%) and 97% of its genome can be related to bat viruses from Yunnan (China), supporting its emergence in the <i>Rhinolophus</i> species of this province. Second, different regions of SARS-CoV-2 share exclusive ancestry with eight <i>Rhinolophus</i> viruses from Yunnan (RpYN06: 5.8%; RaTG13: 4.8%; RmYN02: 3.8%), Laos (RpBANAL103: 3.3%; RmarBANAL236: 1.7%; RmBANAL52: 1.0%; RmBANAL247: 0.7%), and Cambodia (RshSTT200: 2.3%), and 98% of its genome can be related to bat viruses from northern Laos and Yunnan, supporting its emergence in the <i>Rhinolophus</i> species of this region. Although CGB barcodes are very useful in retracing the origins of human sarbecoviruses, further investigations are needed to better take into account the diversity of coronaviruses in bats from Cambodia, Laos, Myanmar, Thailand and Vietnam.https://www.mdpi.com/1999-4915/15/2/406coronavirusgenomerecombinationCOVID-19reservoir hostsecondary host
spellingShingle Alexandre Hassanin
Opale Rambaud
Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies
Viruses
coronavirus
genome
recombination
COVID-19
reservoir host
secondary host
title Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies
title_full Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies
title_fullStr Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies
title_full_unstemmed Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies
title_short Retracing Phylogenetic, Host and Geographic Origins of Coronaviruses with Coloured Genomic Bootstrap Barcodes: SARS-CoV and SARS-CoV-2 as Case Studies
title_sort retracing phylogenetic host and geographic origins of coronaviruses with coloured genomic bootstrap barcodes sars cov and sars cov 2 as case studies
topic coronavirus
genome
recombination
COVID-19
reservoir host
secondary host
url https://www.mdpi.com/1999-4915/15/2/406
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