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    The Genomic Footprints of the Fall and Recovery of the Crested Ibis

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    Authors
    Feng, Shaohong
    Fang, Qi
    Barnett, Ross
    Li, Cai
    Han, Sojung
    Kuhlwilm, Martin
    Zhou, Long
    Pan, Hailin
    Deng, Yuan
    Chen, Guangji
    Gamauf, Anita
    Woog, Friederike
    Prys-Jones, Robert cc
    Marques-Bonet, Tomas
    Gilbert, M Thomas P
    Zhang, Guojie
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    Issue date
    2019-01-10
    Submitted date
    2020-11-19
    Subject Terms
    conservation genomics
    Population Genomics
    endangered species
    extinction
    demography
    inbreeding
    mutation load
    genetic recovery
    ancient genomics
    ornithology
    
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    Abstract
    Human-induced environmental change and habitat fragmentation pose major threats to biodiversity and require active conservation efforts to mitigate their consequences. Genetic rescue through translocation and the introduction of variation into imperiled populations has been argued as a powerful means to preserve, or even increase, the genetic diversity and evolutionary potential of endangered species [1-4]. However, factors such as outbreeding depression [5, 6] and a reduction in available genetic diversity render the success of such approaches uncertain. An improved evaluation of the consequence of genetic restoration requires knowledge of temporal changes to genetic diversity before and after the advent of management programs. To provide such information, a growing number of studies have included small numbers of genomic loci extracted from historic and even ancient specimens [7, 8]. We extend this approach to its natural conclusion, by characterizing the complete genomic sequences of modern and historic population samples of the crested ibis (Nipponia nippon), an endangered bird that is perhaps the most successful example of how conservation effort has brought a species back from the brink of extinction. Though its once tiny population has today recovered to >2,000 individuals [9], this process was accompanied by almost half of ancestral loss of genetic variation and high deleterious mutation load. We furthermore show how genetic drift coupled to inbreeding following the population bottleneck has largely purged the ancient polymorphisms from the current population. In conclusion, we demonstrate the unique promise of exploiting genomic information held within museum samples for conservation and ecological research.
    Citation
    Shaohong Feng, Qi Fang, Ross Barnett, Cai Li, Sojung Han, Martin Kuhlwilm, Long Zhou, Hailin Pan, Yuan Deng, Guangji Chen, Anita Gamauf, Friederike Woog, Robert Prys-Jones, Tomas Marques-Bonet, M. Thomas P. Gilbert, Guojie Zhang, The Genomic Footprints of the Fall and Recovery of the Crested Ibis,Current Biology,Volume 29, Issue 2,2019,Pages 340-349.e7, ISSN 0960-9822, https://doi.org/10.1016/j.cub.2018.12.008.
    Publisher
    Elsevier BV
    Journal
    Current Biology
    URI
    http://hdl.handle.net/10141/622871
    DOI
    10.1016/j.cub.2018.12.008
    Type
    Journal Article
    Item Description
    © 2018 The Author(s). Published by Elsevier Ltd. This is an open access article available to all published under a Creative Commons Attribution – NonCommercial – NoDerivs (CC BY-NC-ND 4.0). The attached file is the published pdf.
    ISSN
    0960-9822
    EISSN
    1879-0445
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cub.2018.12.008
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