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Zamfir AdAuthorBabalola BmAuthorFraile AAuthorMcleish MjAuthorGarcía-Arenal FCorresponding AuthorTobamoviruses Show Broad Host Ranges and Little Genetic Diversity Among Four Habitat Types of a Heterogeneous Ecosystem
Publicated to: Phytopathology. 113 (9): 1697-1707 - 2023-09-01 113(9), DOI: 10.1094/PHYTO-11-22-0439-V
Authors: Zamfir, AD; Babalola, BM; Fraile, A; Mcleish, MJ; García-Arenal, F
Affiliations
Abstract
Host ranges of plant viruses are poorly known, as studies have focused on pathogenic viruses in crops and adjacent wild plants. High-throughput sequencing (HTS) avoids the bias toward plant–virus interactions that result in disease. Here we study the host ranges of tobamoviruses, important pathogens of crops, using HTS analyses of an extensive sample of plant communities in four habitats of a heterogeneous ecosystem. Sequences of 17 virus operational taxonomic units (OTUs) matched references in the Tobamovirus genus, eight had narrow host ranges, and five had wide host ranges. Regardless of host range, the OTU hosts belonged to taxonomically distant families, suggesting no phylogenetic constraints in host use associated with virus adaptation, and that tobamoviruses may be host generalists. The OTUs identified as tobacco mild green mosaic virus (TMGMV), tobacco mosaic virus (TMV), pepper mild mottle virus, and Youcai mosaic virus had the largest realized host ranges that occurred across habitats and exhibited host use unrelated to the degree of human intervention. This result is at odds with assumptions that contact-transmitted viruses would be more abundant in crops than in wild plant communities and could be explained by effective seed-, contact-, or pollinator-mediated transmission or by survival in the soil. TMGMV and TMV had low genetic diversity that was not structured according to habitat or host plant taxonomy, which indicated that phenotypic plasticity allows virus genotypes to infect new hosts with no need for adaptive evolution. Our results underscore the relevance of ecological factors in host range evolution, in addition to the more often studied genetic factors. Copyright © 2023 The Author(s).Keywords
Quality index
Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Phytopathology due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Agronomy and Crop Science.
From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.04. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)
This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:
- Weighted Average of Normalized Impact by the Scopus agency: 1.73 (source consulted: FECYT Mar 2025)
Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-12-05, the following number of citations:
- WoS: 5
- Scopus: 9
Leadership analysis of institutional authors
This work has been carried out with international collaboration, specifically with researchers from: Australia.
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (ZAMFIR VELEA, ADRIAN DANUT) and Last Author (ZAMFIR VELEA, ADRIAN DANUT).
the author responsible for correspondence tasks has been GARCIA-ARENAL RODRIGUEZ, FERNANDO.