干旱区生态环境知识资源中心(Arid): Contrasting effects of local environment and grazing pressure on the genetic diversity and structure of Artemisia frigida

Arid

DOI	10.1007/s10592-021-01375-w
	Contrasting effects of local environment and grazing pressure on the genetic diversity and structure of Artemisia frigida
	Oyundelger, Khurelpurev; Herklotz, Veit; Harpke, Doerte; Oyuntsetseg, Batlai; Wesche, Karsten; Ritz, Christiane M.
通讯作者	Oyundelger, K (corresponding author), Tech Univ Dresden, Int Inst IHI Zittau, Chair Biodivers Higher Plants, Markt 23, D-02763 Zittau, Germany. ; Oyundelger, K (corresponding author), Senckenberg Museum Nat Hist Gorlitz, Dept Bot, Museum 1, D-02826 Gorlitz, Germany.
来源期刊	CONSERVATION GENETICS
ISSN	1566-0621
EISSN	1572-9737
出版年	2021
英文摘要	Drylands count among the most globally extensive biomes, and while many desert and dry rangeland ecosystems are under threat, genetic structures of dryland species are still rarely studied. Artemisia frigida is one of the most widely distributed plant species in the temperate rangelands of Eurasia and North America, and it also dominates in many habitats of Mongolia due to its tolerance to low temperatures, drought and disturbance. Local environmental conditions and grazing pressure can influence species performance and affect spatial patterns of genetic diversity in contrasting ways, and our study set out to evaluate such effects on the genetic diversity and structure of A. frigida. We first developed new species-specific Simple Sequence Repeats (SSRs) markers using whole genome sequencing. We then analysed 11 populations of A. frigida that had been sampled along a large climatic gradient in Mongolia, which were sub-structured according to three levels of grazing intensity. Estimates of genetic diversity at the population level were high (H-O = 0.56, H-E = 0.73) and tended to increase with higher precipitation and soil nutrient availability. Grazing had no effect on genetic diversity, however, a high number of grazing-specific indicator alleles was found at grazed sites. Genetic differentiation among populations was extremely low (global G(ST) = 0.034). Analysis of Molecular Variance revealed 5% variance between populations along the climatic gradient, with 3% of the variance being partitioned among different grazing intensity levels. We found no relationship between geographic and genetic distances, and thus no isolation by distance in this widely distributed species. The relatively low genetic structuring suggests that considerable gene flow exists among A. frigida populations across the rangelands of Mongolia, in spite of the pervasive grazing in the region.
英文关键词	Artemisia frigida Microsatellites Population genetics Mongolian rangeland
类型	Article ; Early Access
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000650099700001
WOS关键词	VEGETATION DYNAMICS ; INNER-MONGOLIA ; PLANT-COMMUNITIES ; SEED-GERMINATION ; CLIMATE ; POPULATIONS ; ASTERACEAE ; RANGELANDS ; STEPPE ; SOIL
WOS类目	Biodiversity Conservation ; Genetics & Heredity
WOS研究方向	Biodiversity & Conservation ; Genetics & Heredity
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352112
作者单位	[Oyundelger, Khurelpurev; Wesche, Karsten; Ritz, Christiane M.] Tech Univ Dresden, Int Inst IHI Zittau, Chair Biodivers Higher Plants, Markt 23, D-02763 Zittau, Germany; [Oyundelger, Khurelpurev; Herklotz, Veit; Wesche, Karsten; Ritz, Christiane M.] Senckenberg Museum Nat Hist Gorlitz, Dept Bot, Museum 1, D-02826 Gorlitz, Germany; [Harpke, Doerte] OT Gatersleben, Leibniz Inst Pflanzengenet & Kulturpflanzenforsch, Correnstr 3, D-06466 Seeland, Germany; [Oyuntsetseg, Batlai] Natl Univ Mongolia, Sch Arts & Sci, Dept Biol, Ulaanbaatar 210646, Mongolia
推荐引用方式 GB/T 7714	Oyundelger, Khurelpurev,Herklotz, Veit,Harpke, Doerte,et al. Contrasting effects of local environment and grazing pressure on the genetic diversity and structure of Artemisia frigida[J],2021.
APA	Oyundelger, Khurelpurev,Herklotz, Veit,Harpke, Doerte,Oyuntsetseg, Batlai,Wesche, Karsten,&Ritz, Christiane M..(2021).Contrasting effects of local environment and grazing pressure on the genetic diversity and structure of Artemisia frigida.CONSERVATION GENETICS.
MLA	Oyundelger, Khurelpurev,et al."Contrasting effects of local environment and grazing pressure on the genetic diversity and structure of Artemisia frigida".CONSERVATION GENETICS (2021).