Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequence

Garlic common latent virus (GarCLV, Carlavirus), in co-infection, often worsens the severity of other Allium viruses on the garlic (Allium sativum Linnaeus). The nucleotide (nt) and amino acid (aa) sequences of the TGB and CP genes were analysed to get the first deep insight into the genomic variati...

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Main Authors: Adyatma Irawan Santosa, Filiz Ertunc
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2021-09-01
Series:Plant Protection Science
Subjects:
Online Access:https://pps.agriculturejournals.cz/artkey/pps-202103-0002_phylogenetic-and-diversity-analyses-of-garlic-common-latent-virus-based-on-the-tgb-and-cp-gene-sequence.php
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author Adyatma Irawan Santosa
Filiz Ertunc
author_facet Adyatma Irawan Santosa
Filiz Ertunc
author_sort Adyatma Irawan Santosa
collection DOAJ
description Garlic common latent virus (GarCLV, Carlavirus), in co-infection, often worsens the severity of other Allium viruses on the garlic (Allium sativum Linnaeus). The nucleotide (nt) and amino acid (aa) sequences of the TGB and CP genes were analysed to get the first deep insight into the genomic variations and population structure of GarCLV. Global recombinant-free isolates were clustered into three clades in both the nt-based phylogenetic trees of TGB and CP. The clade 3 isolates shared low similarity percentages among themselves, as well as to the clade 1 and 2 isolates. Most major aa changes in the CP were observed on its 5' and 3' ends. Clade 2 obtained the lowest S, η, k, and π values for both the TGB and CP, which indicated low variations among its isolates. Both TGB and CP have undergone a negative selection, with CP being under stronger negative pressure than TGB. Neutrality tests estimated the non-significant negative values to all clades for TGB and CP, except Tajima's D for clade 2 of the TGB. The results of the Ks*, Kst*, Z*, and Snn tests suggested that all three phylogroups were divergent to each other for both TGB and CP. The high Fst on all the clade comparisons for both TGB and CP showed a large gene flow among three clades.
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spelling doaj.art-47a90b4e4b5242b083ead4147a09a2c52023-02-23T03:44:35ZengCzech Academy of Agricultural SciencesPlant Protection Science1212-25801805-93412021-09-0157317918710.17221/149/2020-PPSpps-202103-0002Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequenceAdyatma Irawan SantosaFiliz Ertunc0Department of Plant Protection, Faculty of Agriculture, Ankara University, Ankara, TurkeyGarlic common latent virus (GarCLV, Carlavirus), in co-infection, often worsens the severity of other Allium viruses on the garlic (Allium sativum Linnaeus). The nucleotide (nt) and amino acid (aa) sequences of the TGB and CP genes were analysed to get the first deep insight into the genomic variations and population structure of GarCLV. Global recombinant-free isolates were clustered into three clades in both the nt-based phylogenetic trees of TGB and CP. The clade 3 isolates shared low similarity percentages among themselves, as well as to the clade 1 and 2 isolates. Most major aa changes in the CP were observed on its 5' and 3' ends. Clade 2 obtained the lowest S, η, k, and π values for both the TGB and CP, which indicated low variations among its isolates. Both TGB and CP have undergone a negative selection, with CP being under stronger negative pressure than TGB. Neutrality tests estimated the non-significant negative values to all clades for TGB and CP, except Tajima's D for clade 2 of the TGB. The results of the Ks*, Kst*, Z*, and Snn tests suggested that all three phylogroups were divergent to each other for both TGB and CP. The high Fst on all the clade comparisons for both TGB and CP showed a large gene flow among three clades.https://pps.agriculturejournals.cz/artkey/pps-202103-0002_phylogenetic-and-diversity-analyses-of-garlic-common-latent-virus-based-on-the-tgb-and-cp-gene-sequence.phpmolecular variabilitypopulation structureselection pressuresimilarity percentages
spellingShingle Adyatma Irawan Santosa
Filiz Ertunc
Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequence
Plant Protection Science
molecular variability
population structure
selection pressure
similarity percentages
title Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequence
title_full Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequence
title_fullStr Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequence
title_full_unstemmed Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequence
title_short Phylogenetic and diversity analyses of Garlic common latent virus based on the TGB and CP gene sequence
title_sort phylogenetic and diversity analyses of garlic common latent virus based on the tgb and cp gene sequence
topic molecular variability
population structure
selection pressure
similarity percentages
url https://pps.agriculturejournals.cz/artkey/pps-202103-0002_phylogenetic-and-diversity-analyses-of-garlic-common-latent-virus-based-on-the-tgb-and-cp-gene-sequence.php
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