Genomic insights into climate change-induced forest dieback in Abies alba hotspots of decline

European Journal of Forest Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

Abstract Understanding adaptive genetic responses to climate change is an issue of utmost importance improve conservation policies and management. This study deeps on it, focusing rear-edge silver fir ( Abies alba ) forests, where decline has been reported linked climatic stressors, such as warming recurrent drought events. Hotspots coldspots forest mortality were defined. Different sets single nucleotide polymorphisms (SNPs), namely genome-wide adaptive, used their characteristics, aiming identify differences in diversity between vigor classes (declining non-declining trees) age cohorts (adult trees saplings). Global DNA methylation levels assessed investigate a possible role epigenetic processes adaptation stressful environments. Parentage relatedness analysis conducted track the lineage from each site. Our findings indicate that, even though SNPs seem provide more insightful information than set, optimal approach for evolutionary studies combination both. Changes genomic observed classes, revealing existence molecular basis behind ongoing events forests. Besides, trees’ relatives display higher mixture origins coldspots, which could temporary refuge species’ potential. All all, both characteristics should be considered order comprehend how respond stress achieve change.

Language: Английский

Effects of substrate on ecophysiology of young silver fir and Norway spruce growing on shallow calcareous soils

Forest Ecology and Management, Journal Year: 2024, Volume and Issue: 578, P. 122477 - 122477

Published: Dec. 25, 2024

Language: Английский