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Metapopulation inbreeding dynamics, effective size and subpopulation differentiation—A general analytical approach for diploid organisms

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  • Hössjer, Ola
  • Olsson, Fredrik
  • Laikre, Linda
  • Ryman, Nils

Abstract

Motivated by problems in conservation biology we study genetic dynamics in structured populations of diploid organisms (monoecious or dioecious). Our analysis provides an analytical framework that unifies substantial parts of previous work in terms of exact identity by descent (IBD) and identity by state (IBS) recursions. We provide exact conditions under which two structured haploid and diploid populations are equivalent, and some sufficient conditions under which a dioecious diploid population can be treated as a monoecious diploid one. The IBD recursions are used for computing local and metapopulation inbreeding and coancestry effective population sizes and for predictions of several types of fixation indices over different time horizons.

Suggested Citation

  • Hössjer, Ola & Olsson, Fredrik & Laikre, Linda & Ryman, Nils, 2015. "Metapopulation inbreeding dynamics, effective size and subpopulation differentiation—A general analytical approach for diploid organisms," Theoretical Population Biology, Elsevier, vol. 102(C), pages 40-59.
    • Handle: RePEc:eee:thpobi:v:102:y:2015:i:c:p:40-59
    DOI: 10.1016/j.tpb.2015.03.006
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    References listed on IDEAS

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    1. Hössjer, Ola & Jorde, Per Erik & Ryman, Nils, 2013. "Quasi equilibrium approximations of the fixation index under neutrality: The finite and infinite island models," Theoretical Population Biology, Elsevier, vol. 84(C), pages 9-24.
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    Cited by:

    1. Hössjer, O. & Laikre, Linda & Ryman, Nils, 2016. "Effective sizes and time to migration–drift equilibrium in geographically subdivided populations," Theoretical Population Biology, Elsevier, vol. 112(C), pages 139-156.
    2. Olsson, Fredrik & Hössjer, Ola, 2015. "Estimation of the variance effective population size in age structured populations," Theoretical Population Biology, Elsevier, vol. 101(C), pages 9-23.
    3. Hössjer, Ola & Tyvand, Peder A., 2020. "Local fluctuations of genetic processes defined on two time scales, with applications to effective size estimation," Theoretical Population Biology, Elsevier, vol. 131(C), pages 79-99.

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    1. Hössjer, Ola & Tyvand, Peder A., 2020. "Local fluctuations of genetic processes defined on two time scales, with applications to effective size estimation," Theoretical Population Biology, Elsevier, vol. 131(C), pages 79-99.
    2. Hössjer, O. & Laikre, Linda & Ryman, Nils, 2016. "Effective sizes and time to migration–drift equilibrium in geographically subdivided populations," Theoretical Population Biology, Elsevier, vol. 112(C), pages 139-156.

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