Figure 4 (IMAGE)
Caption
Conceptual model for the tree genus refugia during the LGM (a) and the migration pattern during the postglacial period (b). The dark blue circles indicate the main refugia for the three main genera (i.e., Quercus, Pinus and Betula) in (a), which include northeastern China (Xiaoxing’an Mountains and Changbai Mountains), Qinling and Dabie mountainous region (including the Daba Mountains), Taihang mountainous region (including the Wutai Mountains and Lvliang Mountains), Altai Mountains and Yunnan-Guizhou Plateau. The green, orange and light blue arrows indicate the migration routes, while the small circles indicate those refugia with no apparent dispersal, such as the Pinus in the Wutai Mountains or Betula in the Altai Mountains in (b).
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