TABLE 2 in Recent Long-Distance-Dispersal Explains the Range Disjunction of the Old-Word Cockleburs (Xanthium strumarium)

TABLE 2 | Results of the Beast2 analyses when using separately calibration point and clock rate, or when using both. Crown age of X. sect. XanthiumCrown age of X. strumariumRoot priorRoot age estimatesCalibration and clock rate864.07 (794.84–1022.09)156.58 (133.78–187.61)3000.00–8190.003013.38 (3000.00–3565.54)Only calibration861.37 (654.2–1172.53)152.03 (107.45–207.43)3000.00–8190.003012.18 (3000.00–3476.35)Only clock rate748.25 (712.45–783.46)135.17 (120.31–149.18)2625.89 (2557.05–2700.99) Note: In bold are the estimates of the main analyses presented in Figure 3. Estimates are expressed in thousands of years (ka) and number in parentheses refer to 95% HPD (high posterior density).