Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use Sensitivity
ABSTRACT Arbuscular mycorrhizal fungi (AMF, phylum Glomeromycota) are essential to plant community diversity and ecosystem functioning. However, increasing human land use represents a major threat to native AMF globally. Characterizing the loss of AMF diversity remains challenging because many taxa...
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2025-01-01
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| Series: | Ecology and Evolution |
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| Online Access: | https://doi.org/10.1002/ece3.70597 |
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| author | Camille S. Delavaux Alexis Aellen Sidney L. Stürmer Silmar Primieri Ursel M. E. Schütte Devin M. Drown Robert J. Ramos Thomas W. Crowther James D. Bever |
| author_facet | Camille S. Delavaux Alexis Aellen Sidney L. Stürmer Silmar Primieri Ursel M. E. Schütte Devin M. Drown Robert J. Ramos Thomas W. Crowther James D. Bever |
| author_sort | Camille S. Delavaux |
| collection | DOAJ |
| description | ABSTRACT Arbuscular mycorrhizal fungi (AMF, phylum Glomeromycota) are essential to plant community diversity and ecosystem functioning. However, increasing human land use represents a major threat to native AMF globally. Characterizing the loss of AMF diversity remains challenging because many taxa are undescribed, resulting in poor documentation of their biogeography and family‐level disturbance sensitivity. We survey sites representing native and human‐altered ecosystems across the American continents—in Alaska, Kansas, and Brazil—to shed light on these gaps. Using a recently developed pipeline for phylogenetic placement of eDNA, we find evidence for three putative novel clades within the Glomeromycota, sister to Entrophosporaceae, Glomeraceae, and Archaeosporaceae, with evidence for geographic structuring. We further find that taxa in the Diversisporaceae, Glomeraceae, and Entrophosporaceae relatively high families are overrepresented and more diverse in temperate samples. By contrast, the diversity of taxa that cannot be placed into a family is higher in tropical samples, suggesting that tropical sites harbor relatively high undescribed AMF diversity. Moreover, we find evidence that Entrophosporaceae is more tolerant, while Glomeraceae is more sensitive to disturbance. These results underscore the vast undescribed diversity of AMF while highlighting a way forward to systematically improve our understanding of AMF biogeography and response to human disturbance. |
| format | Article |
| id | doaj-art-461053a47f5746578a0a1cf747d97fee |
| institution | Kabale University |
| issn | 2045-7758 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj-art-461053a47f5746578a0a1cf747d97fee2025-01-29T05:08:41ZengWileyEcology and Evolution2045-77582025-01-01151n/an/a10.1002/ece3.70597Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use SensitivityCamille S. Delavaux0Alexis Aellen1Sidney L. Stürmer2Silmar Primieri3Ursel M. E. Schütte4Devin M. Drown5Robert J. Ramos6Thomas W. Crowther7James D. Bever8Institute of Integrative Biology ETH Zurich (Swiss Federal Institute of Technology) Zurich SwitzerlandInstitute of Integrative Biology ETH Zurich (Swiss Federal Institute of Technology) Zurich SwitzerlandDepartamento de Ciências Naturais Universidade Regional de Blumenau Blumenau Santa Catarina BrazilInstituto Federal de Santa Catarina (IFSC) Lages Santa Catarina BrazilInstitute of Arctic Biology University of Alaska Fairbanks Fairbanks Alaska USAInstitute of Arctic Biology University of Alaska Fairbanks Fairbanks Alaska USADepartment of Ecology and Evolutionary Biology The University of Kansas Lawrence Kansas USAInstitute of Integrative Biology ETH Zurich (Swiss Federal Institute of Technology) Zurich SwitzerlandDepartment of Ecology and Evolutionary Biology The University of Kansas Lawrence Kansas USAABSTRACT Arbuscular mycorrhizal fungi (AMF, phylum Glomeromycota) are essential to plant community diversity and ecosystem functioning. However, increasing human land use represents a major threat to native AMF globally. Characterizing the loss of AMF diversity remains challenging because many taxa are undescribed, resulting in poor documentation of their biogeography and family‐level disturbance sensitivity. We survey sites representing native and human‐altered ecosystems across the American continents—in Alaska, Kansas, and Brazil—to shed light on these gaps. Using a recently developed pipeline for phylogenetic placement of eDNA, we find evidence for three putative novel clades within the Glomeromycota, sister to Entrophosporaceae, Glomeraceae, and Archaeosporaceae, with evidence for geographic structuring. We further find that taxa in the Diversisporaceae, Glomeraceae, and Entrophosporaceae relatively high families are overrepresented and more diverse in temperate samples. By contrast, the diversity of taxa that cannot be placed into a family is higher in tropical samples, suggesting that tropical sites harbor relatively high undescribed AMF diversity. Moreover, we find evidence that Entrophosporaceae is more tolerant, while Glomeraceae is more sensitive to disturbance. These results underscore the vast undescribed diversity of AMF while highlighting a way forward to systematically improve our understanding of AMF biogeography and response to human disturbance.https://doi.org/10.1002/ece3.70597biogeographyGlomeromycotaland use historylarge subunit rDNAphylogenetics |
| spellingShingle | Camille S. Delavaux Alexis Aellen Sidney L. Stürmer Silmar Primieri Ursel M. E. Schütte Devin M. Drown Robert J. Ramos Thomas W. Crowther James D. Bever Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use Sensitivity Ecology and Evolution biogeography Glomeromycota land use history large subunit rDNA phylogenetics |
| title | Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use Sensitivity |
| title_full | Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use Sensitivity |
| title_fullStr | Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use Sensitivity |
| title_full_unstemmed | Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use Sensitivity |
| title_short | Uncovering Diversity within the Glomeromycota: Novel Clades, Family Distributions, and Land Use Sensitivity |
| title_sort | uncovering diversity within the glomeromycota novel clades family distributions and land use sensitivity |
| topic | biogeography Glomeromycota land use history large subunit rDNA phylogenetics |
| url | https://doi.org/10.1002/ece3.70597 |
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