The effect of Hengduan Mountains Region (HMR) uplift to environmental changes in the HMR and its eastern adjacent area: Tracing the evolutionary history of Allium section Sikkimensia (Amaryllidaceae)

Polyploidy promotes species diversification of Allium through ecological shifts

“…Li et al ., ; Q‐Q. Li et al ., ; Zhang et al ., ; Xie et al ., ). However, few studies have ever quantified these processes to identify the underlying mechanisms (Hauenschild et al ., ).…”

“…Li et al ., ; Q‐Q. Li et al ., ; Xie et al ., ). Allium diversification was also accompanied by the divergence of traits related to drought tolerance, such as reduced bulb or leaf sizes, suggesting that ecologically driven diversification is associated with functional traits, as it has been shown in other plant groups (Onstein et al ., ; Ebersbach et al ., ).…”

“…In Allium, previous work has reported climatically driven diversification (Cui et al, 2008;Wu et al, 2010;Huang et al, 2014;Wang et al, 2015;Herden et al, 2016;M-J. Li et al, 2016;Zhang et al, 2017;Xie et al, 2019). However, few studies have ever quantified these processes to identify the underlying mechanisms (Hauenschild et al, 2017).…”

Geological and Climatic Factors Affect the Population Genetic Connectivity in Mirabilis himalaica (Nyctaginaceae): Insight From Phylogeography and Dispersal Corridors in the Himalaya-Hengduan Biodiversity Hotspot

“…Late Miocene QTP uplift might have triggered speciation of M. himalaica in combination with the plentiful environmental alterations in the QTP and adjacent regions (Li et al, 1979). During the recent violent QTP uplifts (c. 3.6-1.5 Ma), intensification of the Asian monsoon (c. 3.6-2.6 Ma) (Li et al, 1979;An et al, 2001;Sun and Wang, 2005) were in progress, involving several mountain ranges in the HHM biodiversity hotspot (Harrison et al, 1992; TABLE 5 | Results showing mismatch distribution analysis under models of (A) pure population growth and (B) spatial expansion, and neutrality test for the cpDNA and G3pdh sequence of M. himalaica; tests were conducted in ARLEQUIN with the sum of squared deviations (SSD) and Harpending's (1994) Royden et al, 2008;Xie et al, 2019). Furthermore, tectonic events and climate change have set off the lineage divergence and rapidly occupying the newly available terrain during the Pleistocene.…”

“…Over the last decade, a number of phylogeographic studies have investigated the link between organismic evolution of plant species and the geologic uplift associated with climate changes in the HHM and QTP (Qiu et al, 2011;Jian et al, 2015;Luo et al, 2016). For instance, phylogeographic studies on Primula tibetica related to the effects of Quaternary climatic oscillations in QTP (Ren et al, 2017a), Metrocoris sichuanensis concerned with geological effects in Sichuan Basin (Ye et al, 2018), and Allium section Sikkimensia linked with Hengduan Mountains massif uplift (Xie et al, 2019). They have demonstrated that the dramatic uplift independently or in combination with Pleistocene glaciations influenced their patterns of genetic variation.…”