Climate and Soil Microsite Conditions Determine Local Adaptation in Declining Silver Fir Forests
Ongoing climatic change is threatening the survival of drought-sensitive tree species, such as silver fir (Abies alba). Drought-induced dieback had been previously explored in this conifer, although the role played by tree-level genetic diversity and its relationship with growth patterns and soil mi...
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/121762 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/121762 |
| Access Level: | acceso abierto |
| Palabra clave: | 582.475 581.526.42 581.54 551.588.7 581.15 631.4 Abies alba Climate warming Forest die-off ddRADseq SNPs Dendroecology Soil nutrients Soil microbiome PLFAs Botánica (Biología) Ecología (Biología) Genética Meteorología (Geografía) Edafología (Biología) 2417 Biología Vegetal (Botánica) 2417.02 Dendrología 2417.14 Genética Vegetal 2502 Climatología 2511 Ciencias del Suelo (Edafología) 3106 Ciencia Forestal |
| Sumario: | Ongoing climatic change is threatening the survival of drought-sensitive tree species, such as silver fir (Abies alba). Drought-induced dieback had been previously explored in this conifer, although the role played by tree-level genetic diversity and its relationship with growth patterns and soil microsite conditions remained elusive. We used double digest restriction-site-associated DNA sequencing (ddRADseq) to describe different genetic characteristics of five silver fir forests in the Spanish Pyrenees, including declining and non-declining trees. Single nucleotide polymorphisms (SNPs) were used to investigate the relationships between genetics, dieback, intraspecific trait variation (functional dendrophenotypic traits and leaf traits), local bioclimatic conditions, and rhizosphere soil properties. While there were no noticeable genetic differences between declining and non-declining trees, genome–environment associations with selection signatures were abundant, suggesting a strong influence of climate, soil physicochemical properties, and soil microbial diversity on local adaptation. These results provide novel insights into how genetics and diverse environmental factors are interrelated and highlight the need to incorporate genetic data into silver fir forest dieback studies to gain a better understanding of local adaptation. |
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