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Effects of plant tissue permeability on invasion and population bottlenecks of a phytopathogen

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Listed:
  • Gaofei Jiang

    (Southwest University
    Nanjing Agricultural University)

  • Yuling Zhang

    (Nanjing Agricultural University)

  • Min Chen

    (Shaanxi University of Science & Technology)

  • Josep Ramoneda

    (University of Colorado)

  • Liangliang Han

    (City University of Hong Kong, Kowloon Tong)

  • Yu Shi

    (School of Life Sciences, Henan University)

  • Rémi Peyraud

    (iMEAN, Ramonville Saint Agne)

  • Yikui Wang

    (Guangxi Academy of Agricultural Science)

  • Xiaojun Shi

    (Southwest University)

  • Xinping Chen

    (Southwest University)

  • Wei Ding

    (Southwest University)

  • Alexandre Jousset

    (Nanjing Agricultural University)

  • Yasufumi Hikichi

    (Kochi University)

  • Kouhei Ohnishi

    (Kochi University)

  • Fang-Jie Zhao

    (Nanjing Agricultural University)

  • Yangchun Xu

    (Nanjing Agricultural University)

  • Qirong Shen

    (Nanjing Agricultural University)

  • Francisco Dini-Andreote

    (The Pennsylvania State University
    The Pennsylvania State University)

  • Yong Zhang

    (Southwest University
    Shaanxi University of Science & Technology)

  • Zhong Wei

    (Nanjing Agricultural University)

Abstract

Pathogen genetic diversity varies in response to environmental changes. However, it remains unclear whether plant barriers to invasion could be considered a genetic bottleneck for phytopathogen populations. Here, we implement a barcoding approach to generate a pool of 90 isogenic and individually barcoded Ralstonia solanacearum strains. We used 90 of these strains to inoculate tomato plants with different degrees of physical permeability to invasion (intact roots, wounded roots and xylem inoculation) and quantify the phytopathogen population dynamics during invasion. Our results reveal that the permeability of plant roots impacts the degree of population bottleneck, genetic diversity, and composition of Ralstonia populations. We also find that selection is the main driver structuring pathogen populations when barriers to infection are less permeable, i.e., intact roots, the removal of root physical and immune barriers results in the predominance of stochasticity in population assembly. Taken together, our study suggests that plant root permeability constitutes a bottleneck for phytopathogen invasion and genetic diversity.

Suggested Citation

  • Gaofei Jiang & Yuling Zhang & Min Chen & Josep Ramoneda & Liangliang Han & Yu Shi & Rémi Peyraud & Yikui Wang & Xiaojun Shi & Xinping Chen & Wei Ding & Alexandre Jousset & Yasufumi Hikichi & Kouhei Oh, 2024. "Effects of plant tissue permeability on invasion and population bottlenecks of a phytopathogen," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-023-44234-7
    DOI: 10.1038/s41467-023-44234-7
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    References listed on IDEAS

    as
    1. Sasha F. Levy & Jamie R. Blundell & Sandeep Venkataram & Dmitri A. Petrov & Daniel S. Fisher & Gavin Sherlock, 2015. "Quantitative evolutionary dynamics using high-resolution lineage tracking," Nature, Nature, vol. 519(7542), pages 181-186, March.
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