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Inferring recent historic abundance from current genetic diversity
Stockholm University, Faculty of Science, Department of Genetics, Microbiology and Toxicology.
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2013 (English)In: Molecular Ecology, ISSN 0962-1083, E-ISSN 1365-294X, Vol. 22, no 1, 22-40 p.Article, review/survey (Refereed) Published
Abstract [en]

Recent historic abundance is an elusive parameter of great importance for conserving endangered species and understanding the pre-anthropogenic state of the biosphere. The number of studies that have used population genetic theory to estimate recent historic abundance from contemporary levels of genetic diversity has grown rapidly over the last two decades. Such assessments often yield unexpectedly large estimates of historic abundance. We review the underlying theory and common practices of estimating recent historic abundance from contemporary genetic diversity, and critically evaluate the potential issues at various estimation steps. A general issue of mismatched spatio-temporal scales between the estimation itself and the objective of the estimation emerged from our assessment; genetic diversitybased estimates of recent historic abundance represent long-term averages, whereas the objective typically is an estimate of recent abundance for a specific population. Currently, the most promising approach to estimate the difference between recent historic and contemporary abundance requires that genetic data be collected from samples of similar spatial and temporal duration. Novel genome-enabled inference methods may be able to utilize additional information of dense genome-wide distributions of markers, such as of identity-by-descent tracts, to infer recent historic abundance from contemporary samples only.

Place, publisher, year, edition, pages
2013. Vol. 22, no 1, 22-40 p.
Keyword [en]
coalescent, conservation, mutation-migration-drift equilibrium, population genetic inference
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:su:diva-87148DOI: 10.1111/mec.12094ISI: 000312692800004OAI: oai:DiVA.org:su-87148DiVA: diva2:601074
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AuthorCount:5;

Available from: 2013-01-28 Created: 2013-01-28 Last updated: 2017-12-06Bibliographically approved

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