| Phylogeography of two widespread C4 grass species suggest that tableland and valley grassy biome in southwestern China pre-date human modification | |
| Chu, Yingying; Wee, Alison K. S.; Lapuz, R. Sedricke; Tomlinson, Kyle W. | |
| 2021 | |
| Source Publication | GLOBAL ECOLOGY AND CONSERVATION
 |
| ISSN | 2351-9894 |
| Volume | 31Issue:xPages:- |
| Abstract | The Yunnan-Guizhou Plateau in southwest China lies at the intersection between East and South Asia, and is characterised by highly complex vegetation ranging from subtropical forest to open grassland. There is a long history of human modification to the landscape, but we know surprisingly little of the biogeography of open habitats such as grassy biomes in the region. To investigate the historical continuity of grassy biomes in southwest China, we examined the biogeographies and evolutionary histories of two widespread and dominant C4 grasses, Themeda triandra and Heteropogon contortus, in Yunnan and southern Sichuan provinces, using chloroplast DNA markers in combination with climate data. We discovered that cool- and warm-adapted lineages have been widely distributed across the Yunnan-Guizhou Plateau for at least the last 2 million years, pre-dating any possible anthropogenic impact. Moreover, the high genetic diversity and strong spatial structure of both species suggests the continuous presence of multiple large populations, rather than a recent expansion from the dry valleys in response to anthropogenic deforestation. This is the first evidence for the long-term existence of extensive populations of C4 grasses in this region outside the dry valleys, and calls for a reappraisal of the conservation value of these grass-dominated landscapes. |
| Keyword | Andropogoneae Chloroplast DNA Heteropogon contortus Savanna Themeda triandra Yunnan-Guizhou Plateau |
| Subject Area | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| DOI | 10.1016/j.gecco.2021.e01835 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000704585700005 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/12372 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.[Chu, Yingying 2.Lapuz, R. Sedricke 3.Tomlinson, Kyle W.] Chinese Acad Sci, Ctr Integrat Conservat Xishuangbanna Trop Bot Gar, Menglun 666303, Yunnan, Peoples R China 4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 10049, Peoples R China 5.[Wee, Alison K. S.] Guangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, Nanning, Peoples R China 6.[Wee, Alison K. S.] Univ Nottingham Malaysia, Sch Environm & Geog Sci, Semenyih 43500, Malaysia 7.[Tomlinson, Kyle W.] Chinese Acad Sci, Ctr Conservat Biol Core Bot Gardens, Menglun 666303, Yunnan, Peoples R China |
| Recommended Citation GB/T 7714 | Chu, Yingying,Wee, Alison K. S.,Lapuz, R. Sedricke,et al. Phylogeography of two widespread C4 grass species suggest that tableland and valley grassy biome in southwestern China pre-date human modification[J]. GLOBAL ECOLOGY AND CONSERVATION,2021,31(x):-. |
| APA | Chu, Yingying,Wee, Alison K. S.,Lapuz, R. Sedricke,&Tomlinson, Kyle W..(2021).Phylogeography of two widespread C4 grass species suggest that tableland and valley grassy biome in southwestern China pre-date human modification.GLOBAL ECOLOGY AND CONSERVATION,31(x),-. |
| MLA | Chu, Yingying,et al."Phylogeography of two widespread C4 grass species suggest that tableland and valley grassy biome in southwestern China pre-date human modification".GLOBAL ECOLOGY AND CONSERVATION 31.x(2021):-. |
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