Research Progress in Plants Phylogeography in China

Wang Yeying;Tang Ming;Li Fei;Tang Jing;Tang Xiaoxin;Key Laboratory of Plant Physiology and Development Regulation, College of Life Science, Guizhou Normal University;

Wang Yeying%Tang Ming%Li Fei%Tang Jing%Tang Xiaoxin%Key Laboratory of Plant Physiology and Development Regulation, College of Life Science, Guizhou Normal University

Phylogeographic pattern;;Climate change;;Vicariance;;Islands;;Human activity

The terrain of China is very complicated, so as to that the evolution of species has become very complex. Numerous studies on the phylogeography of flora and fauna have been done in China by domestic and foreign scholars, but they have not come up with a clear and general phylogeographic pattern. Through the related documents published in international journals in the past decade, following the effective factors of climate change,geological accident, islands formation, activity of the human race and other factors, the study discussed how these factors affect the phylogeography pattern of plant in China. We found that in quaternary, "Expansion and contraction" model was not fully applicable for the plants population dynamics of south China. The fragmentation of habitats, the changes of drainage systems caused by upheaval of mountains and recurrent glacial cycles might alone or synergistically drive the segregation and differentiation of plants in southwest mountain. Climate change and/or expanding deserts led to the differentiation and speciation of plants in the northwest. The hybridization was the drive force for the differentiation of the sympatric closely related species. Islands were barriers of plant spread or corridors of species migration depending on its distance to mainland. The population differentiation of plants was driven by human activities in some cases limited by pollen and seed dispersal. On this basis, combined with theexisting research focus and deficiencies, the future research was proposed, which were to pay attention to the traditional classification of research, strengthen cooperation and specimen sharing, increase the research on the widespread species and plant microorganism as well as focus on the application of emerging sequencing technologies and biogeographic models.