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Genomic analysis of demographic history and ecological niche modeling in the endangered Chinese GrouseTetrastes sewerzowi
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- Song, Kai, 1988- (author)
- Uppsala universitet,Zooekologi,Uppsala Univ, Dept Ecol & Genet, Evolutionary Biol Ctr, Anim Ecol, NorbyvChinese Acad Sci, Inst Zool, Key Lab Anim Ecol & Conservat Biol, Beijing 100101, Peoples R China.
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- Gao, Bin (author)
- Chinese Acad Sci, Inst Zool, Key Lab Anim Ecol & Conservat Biol, Beijing 100101, Peoples R China.
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- Halvarsson, Peter (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Uppsala universitet,Zooekologi,Uppsala Univ, Dept Ecol & Genet, Evolutionary BiolSwedish Univ Agr Sci, Dept Biomed & Vet Publ Hlth, Unit Parasitol, POB 7036, S-75007 Uppsala, Sweden.,Inst för biomedicin och veterinär folkhälsovetenskap,Department of Biomedical Science and Veterinary Public Health,Uppsala University
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- (creator_code:org_t)
- 2020-08-27
- 2020
- English.
- In: BMC Genomics. - : BMC. - 1471-2164. ; 21:1
- Journal article (peer-reviewed)
Abstract
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- Background The Quaternary had worldwide consequences in forming the contemporary diversity of many populations, species and communities, which is characterized by marked climatic oscillations between glacial and interglacial periods. The origin and evolution of biodiversity in mountainous areas are highly dependent on historical orogenesis and associated climatic changes. The Chinese grouseTetrastes sewerzowiis a forest-dwelling species endemic to the mountains to the east of the Qinghai-TibetPlateau, which has been listed as Near Threatened with a decreasing trend by the IUCN because of ongoing deforestation and fragmentation of coniferous forests. It is important to place current population status into a broader ecological and evolutionary context to understand their demographic history. Results Analyses of the Chinese Grouse genome revealed fluctuations throughout the Pleistocene in effective population size. Populations decreased during early to middle Pleistocene but showed an expansion during late Pleistocene which was then followed by a sharp decline during the last glacial maximum (LGM). Ecological niche modeling indicated that a suitable habitat shift between high altitude regions to low altitude regions was due to a changing climate. This result parallels patterns of population size change in Chinese Grouse estimated from PSMC modelling, which suggested an expansion in population size from the last interglacial period (LIG) and then a peak and a bottleneck occurring at the last glacial maximum (LGM). Furthermore, the present-day distribution of Chinese Grouse is greatly reduced and fragmented. It will likely become even more fragmented in the future since coniferous forest cover is threatened in the region of their distribution and the availability of such habitat restricts their ecological niche. Conclusions The Chinese Grouse have experienced substantial population size changes from the beginning to the LIG and reached a peak before the LGM. A sharp decrease and bottleneck occurred during the LGM, when the coniferous forests were subjected to extensive loss. The results inferred from the whole genome sequencing and species distribution models both support historical population fluctuations. The distribution of the Chinese Grouse is strongly dependent on the coniferous forest cover. To protect the fragmented coniferous forests is an essential action to protect the Chinese Grouse.
Subject headings
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Keyword
- Demographic history
- MaxEnt
- Qinghai-Tibet plateau
- Chinese grouse
- Tetrastes sewerzowi
- Whole genome sequence
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- ref (subject category)
- art (subject category)
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