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DOI	10.1038/s41467-020-20263-4
	Rapid parallel adaptation despite gene flow in silent crickets
	Zhang X.; Rayner J.G.; Blaxter M.; Bailey N.W.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Gene flow is predicted to impede parallel adaptation via de novo mutation, because it can introduce pre-existing adaptive alleles from population to population. We test this using Hawaiian crickets (Teleogryllus oceanicus) in which ‘flatwing’ males that lack sound-producing wing structures recently arose and spread under selection from an acoustically-orienting parasitoid. Morphometric and genetic comparisons identify distinct flatwing phenotypes in populations on three islands, localized to different loci. Nevertheless, we detect strong, recent and ongoing gene flow among the populations. Using genome scans and gene expression analysis we find that parallel evolution of flatwing on different islands is associated with shared genomic hotspots of adaptation that contain the gene doublesex, but the form of selection differs among islands and corresponds to known flatwing demographics in the wild. We thus show how parallel adaptation can occur on contemporary timescales despite gene flow, indicating that it could be less constrained than previously appreciated. © 2021, The Author(s).
语种	英语
scopus关键词	adaptation; cricket; gene expression; gene flow; genome; mutation; parallel evolution; parasitoid; phenotype; wing morphology; article; demography; Ensifera; gene expression; gene flow; nonhuman; adaptation; anatomy and histology; animal; gene expression regulation; gene locus; genetic selection; genetic variation; genetics; geography; Gryllidae; Hawaii; insect genome; island (geological); male; physiology; population genetics; wing; Gryllidae; Teleogryllus oceanicus; Adaptation, Physiological; Animals; Gene Expression Regulation, Developmental; Gene Flow; Genetic Loci; Genetic Variation; Genetics, Population; Genome, Insect; Geography; Gryllidae; Hawaii; Islands; Male; Selection, Genetic; Wings, Animal
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251545
作者单位	School of Biology, University of St Andrews, St Andrews, Fife, KY16 9TH, United Kingdom; Tree of Life, Wellcome Sanger Institute, Cambridge, CB10 1SA, United Kingdom
推荐引用方式 GB/T 7714	Zhang X.,Rayner J.G.,Blaxter M.,et al. Rapid parallel adaptation despite gene flow in silent crickets[J],2021,12(1).
APA	Zhang X.,Rayner J.G.,Blaxter M.,&Bailey N.W..(2021).Rapid parallel adaptation despite gene flow in silent crickets.Nature Communications,12(1).
MLA	Zhang X.,et al."Rapid parallel adaptation despite gene flow in silent crickets".Nature Communications 12.1(2021).