气候变化领域集成服务门户(CCPortal): Intercontinental genomic parallelism in multiple three-spined stickleback adaptive radiations

CCPortal

DOI	10.1038/s41559-020-01341-8
	Intercontinental genomic parallelism in multiple three-spined stickleback adaptive radiations
	Magalhaes I.S.; Whiting J.R.; D’Agostino D.; Hohenlohe P.A.; Mahmud M.; Bell M.A.; Skúlason S.; MacColl A.D.C.
发表日期	2021
ISSN	2397-334X
起始页码	251
结束页码	261
卷号	5 期号:2
英文摘要	Parallelism, the evolution of similar traits in populations diversifying in similar conditions, provides strong evidence of adaptation by natural selection. Many studies of parallelism focus on comparisons of different ecotypes or contrasting environments, defined a priori, which could upwardly bias the apparent prevalence of parallelism. Here, we estimated genomic parallelism associated with components of environmental and phenotypic variation at an intercontinental scale across four freshwater adaptive radiations (Alaska, British Columbia, Iceland and Scotland) of the three-spined stickleback (Gasterosteus aculeatus). We combined large-scale biological sampling and phenotyping with restriction site associated DNA sequencing (RAD-Seq) data from 73 freshwater lake populations and four marine ones (1,380 fish) to associate genome-wide allele frequencies with continuous distributions of environmental and phenotypic variation. Our three main findings demonstrate that (1) quantitative variation in phenotypes and environments can predict genomic parallelism; (2) genomic parallelism at the early stages of adaptive radiations, even at large geographic scales, is founded on standing variation; and (3) similar environments are a better predictor of genome-wide parallelism than similar phenotypes. Overall, this study validates the importance and predictive power of major phenotypic and environmental factors likely to influence the emergence of common patterns of genomic divergence, providing a clearer picture than analyses of dichotomous phenotypes and environments. ? 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	animal; British Columbia; genetics; genomics; population genetics; radiation; Scotland; single nucleotide polymorphism; Smegmamorpha; Animals; British Columbia; Genetics, Population; Genomics; Polymorphism, Single Nucleotide; Radiation; Scotland; Smegmamorpha
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257028
作者单位	School of Life Sciences, University of Nottingham, University Park, Nottingham, United Kingdom; Department of Life Sciences, Whitelands College, University of Roehampton, London, United Kingdom; Biosciences, College of Life and Environmental Sciences, Geoffrey Pope, University of Exeter, London, United Kingdom; Institute for Bioinformatics and Evolutionary Studies, Department of Biological Sciences, University of Idaho, Moscow, ID, United States; Erbil Polytechnic University, Kurdistan Region, Iraq; Museum of Paleontology, University of California, Berkeley, CA, United States; Department of Aquaculture and Fish Biology, Hólar University, Saueárkrókur, Iceland; Icelandic Museum of Natural History, Sueurlandsbraut, Reykjavík, Iceland
推荐引用方式 GB/T 7714	Magalhaes I.S.,Whiting J.R.,D’Agostino D.,et al. Intercontinental genomic parallelism in multiple three-spined stickleback adaptive radiations[J],2021,5(2).
APA	Magalhaes I.S..,Whiting J.R..,D’Agostino D..,Hohenlohe P.A..,Mahmud M..,...&MacColl A.D.C..(2021).Intercontinental genomic parallelism in multiple three-spined stickleback adaptive radiations.Nature Ecology & Evolution,5(2).
MLA	Magalhaes I.S.,et al."Intercontinental genomic parallelism in multiple three-spined stickleback adaptive radiations".Nature Ecology & Evolution 5.2(2021).