ArticleMolecular plant pathology2025
Accessory Chromosome Contributes to Virulence of Banana Infecting Fusarium oxysporum Tropical Race 4.
Article in Molecular plant pathology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Genome reshaping by Helitron transposons in Fusarium oxysporum TR4 affects secondary metabolism but not virulence.Nature communications · 2026Article
- Navigating Fusarium wilt of bananas: a ready-to-use subset of resistantFrontiers in plant science · 2026Review
- Accessory Chromosome Contributes to Virulence of Banana Infecting Fusarium oxysporum Tropical Race 4.Molecular plant pathology · 2025Article
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13 authors.
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Abstract
Filamentous fungi have evolved compartmentalised genomes comprising conserved core regions and dynamic accessory regions, which are thought to drive adaptation to changing environments, including interactions with host organisms. Tropical Race 4 (TR4) is a lineage of banana-infecting Fusarium spp. and causes a devastating Fusarium wilt epidemic in the industrial banana cultivar Cavendish. A recent study showed that TR4 contains a single accessory chromosome (chromosome 12), which in some strains has undergone extensive internal duplications, tripling its size compared to other closely related strains. However, the contribution of this accessory chromosome to virulence is currently unknown. Here we show that the induced loss of accessory chromosome 12 in the TR4 reference strain II5 leads to reduced virulence on banana plants. Moreover, loss of chromosome 12 co-occurs with structural rearrangements of conserved core chromosomes. Together, our results provide new insights into the chromosome dynamics of the banana-infecting Fusarium TR4 lineage and highlight the importance of its unique accessory chromosome in virulence.
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