气候变化领域集成服务门户(CCPortal): Genetic and demographic founder effects have long-term fitness consequences for colonising populations

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DOI	10.1111/ele.12743
	Genetic and demographic founder effects have long-term fitness consequences for colonising populations
	Szűcs M.; Melbourne B.A.; Tuff T.; Weiss-Lehman C.; Hufbauer R.A.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:4
英文摘要	Colonisation is a fundamental ecological and evolutionary process that drives the distribution and abundance of organisms. The initial ability of colonists to establish is determined largely by the number of founders and their genetic background. We explore the importance of these demographic and genetic properties for longer term persistence and adaptation of populations colonising a novel habitat using experimental populations of Tribolium castaneum. We introduced individuals from three genetic backgrounds (inbred – outbred) into a novel environment at three founding sizes (2–32), and tracked populations for seven generations. Inbreeding had negative effects, whereas outbreeding generally had positive effects on establishment, population growth and long-term persistence. Severe bottlenecks due to small founding sizes reduced genetic variation and fitness but did not prevent adaptation if the founders originated from genetically diverse populations. Thus, we find important and largely independent roles for both demographic and genetic processes in driving colonisation success. © 2017 John Wiley & Sons Ltd/CNRS
英文关键词	Adaptation; admixture; colonisation; demography; extinction; founder effects; genetic diversity; inbreeding; population founding
学科领域	Tribolium castaneum; animal; animal dispersal; ecosystem; founder effect; genetic variation; genetics; physiology; reproductive fitness; Tribolium; Animal Distribution; Animals; Ecosystem; Founder Effect; Genetic Fitness; Genetic Variation; Tribolium
语种	英语
scopus关键词	Tribolium castaneum; animal; animal dispersal; ecosystem; founder effect; genetic variation; genetics; physiology; reproductive fitness; Tribolium; Animal Distribution; Animals; Ecosystem; Founder Effect; Genetic Fitness; Genetic Variation; Tribolium
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118402
作者单位	Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO 80523-1177, United States; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309-0334, United States; Department of Biology, Washington University in St. Louis, St. Louis, MO 63130-4899, United States; Max Planck Institute for the Science of Human History, Jena, Germany
推荐引用方式 GB/T 7714	Szűcs M.,Melbourne B.A.,Tuff T.,et al. Genetic and demographic founder effects have long-term fitness consequences for colonising populations[J],2017,20(4).
APA	Szűcs M.,Melbourne B.A.,Tuff T.,Weiss-Lehman C.,&Hufbauer R.A..(2017).Genetic and demographic founder effects have long-term fitness consequences for colonising populations.Ecology Letters,20(4).
MLA	Szűcs M.,et al."Genetic and demographic founder effects have long-term fitness consequences for colonising populations".Ecology Letters 20.4(2017).