Genomic landscape of a relict fir-associated fungus reveals rapid convergent adaptation towards endophytism

被引：0
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作者：
Zhilin Yuan
Qi Wu
Liangxiong Xu
Irina S. Druzhinina
Eva H. Stukenbrock
Bart P. S. Nieuwenhuis
Zhenhui Zhong
Zhong-Jian Liu
Xinyu Wang
Feng Cai
Christian P. Kubicek
Xiaoliang Shan
Jieyu Wang
Guohui Shi
Long Peng
Francis M. Martin
机构：
[1] State Key Laboratory of Tree Genetics and Breeding,Department of Molecular, Cell, and Developmental Biology
[2] Chinese Academy of Forestry,undefined
[3] Research Institute of Subtropical Forestry,undefined
[4] Chinese Academy of Forestry,undefined
[5] State Key Laboratory of Mycology,undefined
[6] Institute of Microbiology,undefined
[7] Chinese Academy of Sciences,undefined
[8] School of Life Sciences,undefined
[9] Huizhou University,undefined
[10] Key Laboratory of Plant Immunity,undefined
[11] Fungal Genomics Laboratory (FungiG),undefined
[12] College of Resources and Environmental Sciences,undefined
[13] Nanjing Agricultural University,undefined
[14] Institute of Chemical,undefined
[15] Environmental & Bioscience Engineering (ICEBE),undefined
[16] TU Wien,undefined
[17] Botanical Institute,undefined
[18] Christian-Albrechts Universität zu Kiel,undefined
[19] Environmental Genomics Research Group,undefined
[20] Max-Planck Institute for Evolutionary Biology,undefined
[21] Division of Evolutionary Biology,undefined
[22] Ludwig-Maximilians-Universität München,undefined
[23] State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops,undefined
[24] College of Plant Protection,undefined
[25] Fujian Agriculture and Forestry University,undefined
[26] University of California,undefined
[27] Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture,undefined
[28] Fujian Agriculture and Forestry University,undefined
[29] Key Laboratory of Plant Resources Conservation and Sustainable Utilization,undefined
[30] South China Botanical Garden,undefined
[31] Chinese Academy of Sciences,undefined
[32] Université de Lorraine,undefined
[33] INRAe,undefined
[34] UMR 1136 Interactions Arbres/Microorganismes,undefined
[35] INRAe-Grand Est-Nancy,undefined
来源：
The ISME Journal | 2022年 / 16卷
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摘要：
Comparative and pan-genomic analyses of the endophytic fungus Pezicula neosporulosa (Helotiales, Ascomycota) from needles of the relict fir, Abies beshanzuensis, showed expansions of carbohydrate metabolism and secondary metabolite biosynthetic genes characteristic for unrelated plant-beneficial helotialean, such as dark septate endophytes and ericoid mycorrhizal fungi. The current species within the relatively young Pliocene genus Pezicula are predominantly saprotrophic, while P. neosporulosa lacks such features. To understand the genomic background of this putatively convergent evolution, we performed population analyses of 77 P. neosporulosa isolates. This revealed a mosaic structure of a dozen non-recombining and highly genetically polymorphic subpopulations with a unique mating system structure. We found that one idiomorph of a probably duplicated mat1-2 gene was found in putatively heterothallic isolates, while the other co-occurred with mat1-1 locus suggesting homothallic reproduction for these strains. Moreover, 24 and 81 genes implicated in plant cell-wall degradation and secondary metabolite biosynthesis, respectively, showed signatures of the balancing selection. These findings highlight the evolutionary pattern of the two gene families for allowing the fungus a rapid adaptation towards endophytism and facilitating diverse symbiotic interactions.
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页码：1294 / 1305
页数：11
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  • [1] Genomic landscape of a relict fir-associated fungus reveals rapid convergent adaptation towards endophytism
    Yuan, Zhilin
    Wu, Qi
    Xu, Liangxiong
    Druzhinina, Irina S.
    Stukenbrock, Eva H.
    Nieuwenhuis, Bart P. S.
    Zhong, Zhenhui
    Liu, Zhong-Jian
    Wang, Xinyu
    Cai, Feng
    Kubicek, Christian P.
    Shan, Xiaoliang
    Wang, Jieyu
    Shi, Guohui
    Peng, Long
    Martin, Francis M.
    ISME JOURNAL, 2022, 16 (05): : 1294 - 1305
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