Supplementary Material & Methods and Results & Discussion to Worth et al., Reticulate history of beech

This file sets includes Supplementary Material & Methods and Supplementary Results & Discussion for Worth et al. (2025), Reticulate history of beechSupplM&M.pdf (31 pp. with 4 supplementary figures and 4 tables) details methodological background, available data revision and harvesting procedures, PCR, sequencing and assembling protocols, processing of harvested and newly generated data, and set-up of tree and network inferences and dating experiments.SupplR&D.pdf (114 pp. with 35 supplementary figures and 16 tables) provides highly detailed results of all performed analysis, additional exploratory data analyses backing the experimental set-up and assumptions used by Worth et al. (2025), as well as in-depth discussions of found diversity patterns in beech and obtained divergence estimates dating the decoupling of nuclear and plastid genealogies. It also summarises the biogeographic history of beech in the Northern Hemisphere by characterising and defining major biogeographic units and their evolution through time.The appended graphic pictures the known inter-species relationships in beech, the beech species network, as indicated by nuclear and morphological data, prior to our analysis of the chloroplast genomes (after Denk et al. 2024, Willdenowia 54: 151–181).