Lokale Anpassung bei Waldbaumarten: Genetische Prozesse und Bedeutung im Klimawandel

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Abstract

Forest trees will have to adapt to future climatic changes, a process that will comprise genetic changes as a key component. Owing to technological advances it is now possible to identify the signature of natural selection and local adaptation in the genome. Environmental association analyses aim at associating adaptive genetic patterns with environmental parameters describing the local habitat. On the basis of such studies - including own investigations using oak and beech in Switzerland-, we show that forest trees are genetically differentiated along various environmental gradients, especially temperature and precipitation. Numerous genes could be found that presumably play a role in the adaptation to such environmental factors. Based on these findings, one could identify trees or stands that are adapted to future local conditions, and respective seed material could be considered in silviculture. Because such approaches are still in their infancy and because genome-environment interactions are complex, management strategies should focus on the preservation of (adaptive) genetic diversity, natural regeneration, and connectivity among stands. This would set the basis for the local adaptation of forest stands to altered environmental conditions by natural processes.

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APA

Rellstab, C., Pluess, A. R., & Gugerli, F. (2016). Lokale Anpassung bei Waldbaumarten: Genetische Prozesse und Bedeutung im Klimawandel. Schweizerische Zeitschrift Fur Forstwesen, 167(6), 333–340. https://doi.org/10.3188/szf.2016.0333

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