Genetic variability and evolutionary dynamics of tomato black ring virus population

2021 ◽  
Author(s):  
Daria Budzyńska ◽  
Beata Hasiów‐Jaroszewska ◽  
Santiago F. Elena
Keyword(s):  
Genetic Variability ◽  
Evolutionary Dynamics ◽  
Black Ring ◽  
Virus Population ◽  
Tomato Black Ring Virus

Genetic variability of Polish tomato black ring virus isolates and their satellite RNAs

2020 ◽  
Vol 69 (6) ◽  
pp. 1034-1041
Author(s):  
Aleksandra Zarzyńska‐Nowak ◽  
Beata Hasiów‐Jaroszewska ◽  
Daria Budzyńska ◽  
Katarzyna Trzmiel
Keyword(s):  
Genetic Variability ◽  
Black Ring ◽  
Tomato Black Ring Virus ◽  
Satellite Rnas ◽  
Virus Isolates

scholarly journals Long-Term Cocirculation of Two Strains of Pepino Mosaic Virus in Tomato Crops and Its Effect on Population Genetic Variability

2020 ◽  
Vol 110 (1) ◽  
pp. 49-57 ◽  
Author(s):  
C. Alcaide ◽  
M. P. Rabadán ◽  
M. Juárez ◽  
P. Gómez
Keyword(s):  
Genetic Variability ◽  
Mosaic Virus ◽  
Evolutionary Dynamics ◽  
Geographical Area ◽  
Viral Fitness ◽  
Mixed Infections ◽  
Supporting Evidence ◽  
Pepino Mosaic Virus ◽  
Nucleotide Variability

Mixed viral infections are common in plants, and the evolutionary dynamics of viral populations may differ depending on whether the infection is caused by single or multiple viral strains. However, comparative studies of single and mixed infections using viral populations in comparable agricultural and geographical locations are lacking. Here, we monitored the occurrence of pepino mosaic virus (PepMV) in tomato crops in two major tomato-producing areas in Murcia (southeastern Spain), supporting evidence showing that PepMV disease-affected plants had single infections of the Chilean 2 (CH2) strain in one area and the other area exhibited long-term (13 years) coexistence of the CH2 and European (EU) strains. We hypothesized that circulating strains of PepMV might be modulating the differentiation between them and shaping the evolutionary dynamics of PepMV populations. Our phylogenetic analysis of 106 CH2 isolates randomly selected from both areas showed a remarkable divergence between the CH2 isolates, with increased nucleotide variability in the geographical area where both strains cocirculate. Furthermore, the potential virus–virus interaction was studied further by constructing six full-length infectious CH2 clones from both areas, and assessing their viral fitness in the presence and absence of an EU-type isolate. All CH2 clones showed decreased fitness in mixed infections and although complete genome sequencing indicated a nucleotide divergence of those CH2 clones by area, the magnitude of the fitness response was irrespective of the CH2 origin. Overall, these results suggest that although agroecological cropping practices may be particularly important for explaining the evolutionary dynamics of PepMV in tomato crops, the cocirculation of both strains may have implications on the genetic variability of PepMV populations.

scholarly journals Identification of Tomato black ring virus from tomato plants grown in greenhouses in Saudi Arabia

2021 ◽  
Author(s):  
Anas Mohammed Al-Shudifat ◽  
Ibrahim Mohammed Al-Shahwan ◽  
Mohammad Ali Al-Saleh ◽  
Omer Ahmed Abdalla ◽  
Mahmoud Ahmed Amer
Keyword(s):  
Saudi Arabia ◽  
Black Ring ◽  
Tomato Black Ring Virus ◽  
Tomato Plants

scholarly journals Prevalence and genetic variability of tick-borne encephalitis virus in host-seeking Ixodes ricinus in northern Italy

2009 ◽  
Vol 90 (12) ◽  
pp. 2877-2883 ◽  
Author(s):  
Giovanna Carpi ◽  
Luigi Bertolotti ◽  
Sergio Rosati ◽  
Annapaola Rizzoli
Keyword(s):  
Genetic Variability ◽  
Ixodes Ricinus ◽  
Evolutionary Dynamics ◽  
Phylogenetic Analyses ◽  
Northern Italy ◽  
Nucleotide Sequence Analysis ◽  
Envelope Gene ◽  
North East ◽  
Tick Borne Encephalitis ◽  
Pcr Targeting

Tick-borne encephalitis (TBE) is a severe disease that has been endemic in north-east Italy since 1992. Over the past two decades, there has been an increase in the number of human cases reported in many European countries, including Italy. To assess the current TBE infection risk, questing ticks were collected from known TBE foci, as well as from a site in northern Italy where no human infections have been reported previously. A total of 1739 Ixodes ricinus (1485 nymphs and 254 adults) was collected and analysed for TBEV prevalence by a real-time RT-PCR targeting the 3′ untranslated region. Phylogenetic analyses of the partial envelope gene were conducted on two newly sequenced TBE virus (TBEV) strains and 28 previously published sequences to investigate the genealogical relationships of the circulating TBEV strains. These phylogenetic analyses confirmed a previous report that the European TBEV subtype is the only subtype circulating within the TBE foci in north-east Italy. Interestingly, nucleotide sequence analysis revealed a high degree of divergence (mean 2.54 %) between the TBEV strains recovered in the Italian province of Trento, despite the circulation of a single TBEV subtype. This elevated genetic variability within a single TBE focus may reflect local differences in the long-standing evolutionary dynamics of TBEV at this site relative to previously characterized sites, or more recent and continuous reintroduction of various TBEV strains.

Transmission of a strain of tomato black ring virus by Longidorus elongatus (Nematoda)

Virology ◽  
1961 ◽  
Vol 14 (4) ◽  
pp. 480-485 ◽  
Author(s):  
B.D. Harrison ◽  
W.P. Mowat ◽  
C.E. Taylor
Keyword(s):  
Black Ring ◽  
Tomato Black Ring Virus ◽  
Longidorus Elongatus

scholarly journals Specificity in the Association of Tomato Black Ring Virus Satellite RNA with Helper Virus

Virology ◽  
1995 ◽  
Vol 213 (1) ◽  
pp. 87-96 ◽  
Author(s):  
C. Oncino ◽  
O. Hemmer ◽  
C. Fritsch
Keyword(s):  
Helper Virus ◽  
Black Ring ◽  
Satellite Rna ◽  
Tomato Black Ring Virus

scholarly journals Evidence for Two Functional RNA Species and a 'Satellite' RNA in Tomato Black Ring Virus

1973 ◽  
Vol 19 (2) ◽  
pp. 275-278 ◽  
Author(s):  
A. F. Murant ◽  
M. A. Mayo ◽  
B. D. Harrison ◽  
R. A. Goold
Keyword(s):  
Black Ring ◽  
Satellite Rna ◽  
Tomato Black Ring Virus ◽  
Functional Rna
Sign in / Sign up

Export Citation Format

Share Document