Comparative genomics reveals a dynamic genome evolution in the ectomycorrhizal milk‐cap (<i>Lactarius</i>) mushrooms
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- Annie Lebreton
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry University Beijing 100083 China
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- Nianwu Tang
- Université de Lorraine INRAE Unité mixte de recherche Interactions Arbres/Microorganismes Centre INRAE Grand Est‐Nancy 54280 Champenoux France
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- Alan Kuo
- Lawrence Berkeley National Laboratory US Department of Energy Joint Genome Institute Berkeley CA 94720 USA
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- Kurt LaButti
- Lawrence Berkeley National Laboratory US Department of Energy Joint Genome Institute Berkeley CA 94720 USA
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- William Andreopoulos
- US Department of Energy Joint Genome Institute University of California Berkeley Berkeley CA 94720 USA
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- Elodie Drula
- CNRS Aix‐Marseille Université Marseille 13288 France
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- Shingo Miyauchi
- Department of Plant Microbe Interactions Max Planck Institute for Plant Breeding Research Cologne 50829 Germany
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- Kerrie Barry
- Lawrence Berkeley National Laboratory US Department of Energy Joint Genome Institute Berkeley CA 94720 USA
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- Alicia Clum
- Lawrence Berkeley National Laboratory US Department of Energy Joint Genome Institute Berkeley CA 94720 USA
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- Anna Lipzen
- Lawrence Berkeley National Laboratory US Department of Energy Joint Genome Institute Berkeley CA 94720 USA
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- Daniel Mousain
- INRAE 11 rue Demians Nîmes 30000 France
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- Vivian Ng
- Lawrence Berkeley National Laboratory US Department of Energy Joint Genome Institute Berkeley CA 94720 USA
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- Ran Wang
- Germplasm Bank of Wild Species Yunnan Key Laboratory for Fungal Diversity and Green Development Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
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- Yucheng Dai
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry University Beijing 100083 China
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- Bernard Henrissat
- Department of Biotechnology and Biomedicine (DTU Bioengineering) Technical University of Denmark Kgs. Lyngby 2800 Denmark
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- Igor V. Grigoriev
- Lawrence Berkeley National Laboratory US Department of Energy Joint Genome Institute Berkeley CA 94720 USA
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- Alexis Guerin‐Laguette
- Mycotree C/‐ Southern Woods Nursery 1002 Robinsons Road, RD8 Christchurch 7678 New Zealand
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- Fuqiang Yu
- Germplasm Bank of Wild Species Yunnan Key Laboratory for Fungal Diversity and Green Development Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
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- Francis M. Martin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry University Beijing 100083 China
抄録
<jats:title>Summary</jats:title><jats:p> <jats:list list-type="bullet"> <jats:list-item><jats:p>Ectomycorrhizal fungi play a key role in forests by establishing mutualistic symbioses with woody plants. Genome analyses have identified conserved symbiosis‐related traits among ectomycorrhizal fungal species, but the molecular mechanisms underlying host specificity remain poorly known.</jats:p></jats:list-item> <jats:list-item><jats:p>We sequenced and compared the genomes of seven species of milk‐cap fungi (<jats:italic>Lactarius</jats:italic>, Russulales) with contrasting host specificity. We also compared these genomes with those of symbiotic and saprotrophic Russulales species, aiming to identify genes involved in their ecology and host specificity.</jats:p></jats:list-item> <jats:list-item><jats:p>The size of <jats:italic>Lactarius</jats:italic> genomes is significantly larger than other Russulales species, owing to a massive accumulation of transposable elements and duplication of dispensable genes. As expected, their repertoire of genes coding for plant cell wall‐degrading enzymes is restricted, but they retained a substantial set of genes involved in microbial cell wall degradation. Notably, <jats:italic>Lactarius</jats:italic> species showed a striking expansion of genes encoding proteases, such as secreted ectomycorrhiza‐induced sedolisins. A high copy number of genes coding for small secreted LysM proteins and <jats:italic>Lactarius</jats:italic>‐specific lectins were detected, which may be linked to host specificity.</jats:p></jats:list-item> <jats:list-item><jats:p>This study revealed a large diversity in the genome landscapes and gene repertoires within Russulaceae. The known host specificity of <jats:italic>Lactarius</jats:italic> symbionts may be related to mycorrhiza‐induced species‐specific genes, including secreted sedolisins.</jats:p></jats:list-item> </jats:list> </jats:p>
収録刊行物
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- New Phytologist
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New Phytologist 235 (1), 306-319, 2022-04-28
Wiley