Extensive Pollen Flow and Historical Population Expansions Shaped the Phylogeographic Pattern of <i>Choerospondias axillaris</i> : Evidence From Chloroplast <scp>DNA</scp> and <scp>ITS</scp> Sequences

expanded southwards (such as Guangdong) from this region to establish the current distribution patterns. Future climate warming may drive its suitable habitats northwards to areas south of the Qinling Mountains. Therefore, priority should be given to protecting identified genetic diversity hotspots and potential refuge populations while implementing targeted management for populations with low genetic variation to ensure the species' evolutionary potential.