DOI: 10.1111/ele.12743
Scopus记录号: 2-s2.0-85016115814
论文题名: Genetic and demographic founder effects have long-term fitness consequences for colonising populations
作者: Szűcs M. ; Melbourne B.A. ; Tuff T. ; Weiss-Lehman C. ; Hufbauer R.A.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 4 起始页码: 436
结束页码: 444
语种: 英语
英文关键词: Adaptation
; admixture
; colonisation
; demography
; extinction
; founder effects
; genetic diversity
; inbreeding
; population founding
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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107636
Appears in Collections: 气候减缓与适应
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作者单位: Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO, United States; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, United States; Department of Biology, Washington University in St. Louis, St. Louis, MO, United States; Max Planck Institute for the Science of Human History, Jena, Germany
Recommended Citation:
Szűcs M.,Melbourne B.A.,Tuff T.,et al. Genetic and demographic founder effects have long-term fitness consequences for colonising populations[J]. Ecology Letters,2017-01-01,20(4)