干旱区生态环境知识资源中心(Arid): Empirical landscape genetic comparison of single nucleotide polymorphisms and microsatellites in three arid-zone mammals with high dispersal capacity

Arid

DOI	10.1002/ece3.10037
	Empirical landscape genetic comparison of single nucleotide polymorphisms and microsatellites in three arid-zone mammals with high dispersal capacity
	Skey, Ebony D.; Ottewell, Kym M.; Spencer, Peter B.; Shaw, Robyn E.
通讯作者	Shaw, RE
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2023
卷号	13 期号:5
英文摘要	Landscape genetics is increasingly transitioning away from microsatellites, with single nucleotide polymorphisms (SNPs) providing increased resolution for detecting patterns of spatial-genetic structure. This is particularly pertinent for research in arid-zone mammals due to challenges associated with unique life history traits, such as boom-bust population dynamics and long-distance dispersal capacities. Here, we provide a case study comparing SNPs versus microsatellites for testing three explicit landscape genetic hypotheses (isolation-by-distance, isolation-by-barrier, and isolation-by-resistance) in a suite of small, arid-zone mammals in the Pilbara region of Western Australia. Using clustering algorithms, Mantel tests, and linear mixed effects models, we compare functional connectivity between genetic marker types and across species, including one marsupial, Ningaui timealeyi, and two native rodents, Pseudomys chapmani and P. hermannsburgensis. SNPs resolved subtle genetic structuring not detected by microsatellites, particularly for N. timealeyi where two genetic clusters were identified. Furthermore, stronger signatures of isolation-by-distance and isolation-by-resistance were detected when using SNPs, and model selection based on SNPs tended to identify more complex resistance surfaces (i.e., composite surfaces of multiple environmental layers) in the best-performing models. While we found limited evidence for physical barriers to dispersal across the Pilbara for all species, we found that topography, substrate, and soil moisture were the main environmental drivers shaping functional connectivity. Our study demonstrates that new analytical and genetic tools can provide novel ecological insights into arid landscapes, with potential application to conservation management through identifying dispersal corridors to mediate the impacts of ongoing habitat fragmentation in the region.
英文关键词	arid zone isolation-by-resistance landscape genetics microsatellites single nucleotide polymorphisms small mammals
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000981480200001
WOS关键词	POPULATION-STRUCTURE ; PAIRWISE RELATEDNESS ; RESISTANCE SURFACES ; PILBARA REGION ; FLOW ; EVOLUTION ; ECOLOGY ; REGRESSION ; CONNECTIVITY ; ENVIRONMENT
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396016
推荐引用方式 GB/T 7714	Skey, Ebony D.,Ottewell, Kym M.,Spencer, Peter B.,et al. Empirical landscape genetic comparison of single nucleotide polymorphisms and microsatellites in three arid-zone mammals with high dispersal capacity[J],2023,13(5).
APA	Skey, Ebony D.,Ottewell, Kym M.,Spencer, Peter B.,&Shaw, Robyn E..(2023).Empirical landscape genetic comparison of single nucleotide polymorphisms and microsatellites in three arid-zone mammals with high dispersal capacity.ECOLOGY AND EVOLUTION,13(5).
MLA	Skey, Ebony D.,et al."Empirical landscape genetic comparison of single nucleotide polymorphisms and microsatellites in three arid-zone mammals with high dispersal capacity".ECOLOGY AND EVOLUTION 13.5(2023).