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February 2, 2026European Journal of Plant PathologyOpen Access

Diversity and distribution of turnip yellows virus infecting Brassica napus L. (canola) in the Western Cape, South Africa

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Authors

DRDavid A. ReadBSBernard SlippersJSJohann Strauss

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Overview

Survey documents widespread turnip yellows virus in canola, indicating potential for significant yield losses.

Key Points

  • The aim is to document the distribution and genetic diversity of Turnip Yellow Virus in canola crops in South Africa.
  • Conducted an extensive survey in the Swartland and Overberg regions of the Western Cape.
  • Generated RNAseq-derived metaviromes from 38 symptomatic Brassica napus plants.
  • Performed phylogenetic and phylogenomic analyses of assembled TuYV genomes.
  • Used RT-PCR to confirm TuYV presence in an additional 245 samples across different growing seasons.
  • Identified two genetically distinct populations of TuYV with no geographical differentiation.
  • Confirmed TuYV presence in 245 additional canola samples.
  • Highlighted a widespread TuYV distribution in the region, likely facilitated by aphid vectors.
  • Suggested a longstanding presence and need for continuous monitoring and management.

Cite This Study

Read et al. (2026) studied this question.

synapsesocial.com/papers/6980fd60c1c9540dea80f206https://doi.org/10.1007/s10658-026-03185-7
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Assessing the impact of turnip yellows virus infection and drought on canola performance: implications under a climate change scenario2024
  2. 2Turnip yellows virus management in <i>Brassica napus</i> : neonicotinoid seed treatments, foliar insecticide timing, and host resistance2026
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  4. 4Brassica Yellows Virus and Turnip Mosaic Virus: Asymmetric Interaction in the Mixed Infections in <i>Nicotiana benthamiana</i> and <i>Brassica napus</i> L.2026
  5. 5Turnip mosaic virus resistance breaking strain in canola: Symptomatology, seed and contact transmission, yield losses and seed germination2026 · 1 citations