How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories

Reconstruction of population histories is a central problem in population genetics. Existing coalescent-based methods, like the seminal work of Li and Durbin (Nature, 2011), attempt to solve this problem using sequence data but have no rigorous guarantees. Determining the amount of data needed to co...

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Main Authors: Kim, Younhun, Koehler, Frederic, Moitra, Ankur, Mossel, Elchanan, Ramnarayan, Govind
Other Authors: Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Format: Book
Language:English
Published: Springer International Publishing 2020
Online Access:https://hdl.handle.net/1721.1/126860
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author Kim, Younhun
Koehler, Frederic
Moitra, Ankur
Mossel, Elchanan
Ramnarayan, Govind
author2 Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
author_facet Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Kim, Younhun
Koehler, Frederic
Moitra, Ankur
Mossel, Elchanan
Ramnarayan, Govind
author_sort Kim, Younhun
collection MIT
description Reconstruction of population histories is a central problem in population genetics. Existing coalescent-based methods, like the seminal work of Li and Durbin (Nature, 2011), attempt to solve this problem using sequence data but have no rigorous guarantees. Determining the amount of data needed to correctly reconstruct population histories is a major challenge. Using a variety of tools from information theory, the theory of extremal polynomials, and approximation theory, we prove new sharp information-theoretic lower bounds on the problem of reconstructing population structure—the history of multiple subpopulations that merge, split and change sizes over time. Our lower bounds are exponential in the number of subpopulations, even when reconstructing recent histories. We demonstrate the sharpness of our lower bounds by providing algorithms for distinguishing and learning population histories with matching dependence on the number of subpopulations.
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spelling mit-1721.1/1268602022-10-02T00:32:22Z How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories Kim, Younhun Koehler, Frederic Moitra, Ankur Mossel, Elchanan Ramnarayan, Govind Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology. Department of Mathematics Massachusetts Institute of Technology. Institute for Data, Systems, and Society Reconstruction of population histories is a central problem in population genetics. Existing coalescent-based methods, like the seminal work of Li and Durbin (Nature, 2011), attempt to solve this problem using sequence data but have no rigorous guarantees. Determining the amount of data needed to correctly reconstruct population histories is a major challenge. Using a variety of tools from information theory, the theory of extremal polynomials, and approximation theory, we prove new sharp information-theoretic lower bounds on the problem of reconstructing population structure—the history of multiple subpopulations that merge, split and change sizes over time. Our lower bounds are exponential in the number of subpopulations, even when reconstructing recent histories. We demonstrate the sharpness of our lower bounds by providing algorithms for distinguishing and learning population histories with matching dependence on the number of subpopulations. Office of Naval Research MURI (N00014-16-1-2227) National Science Foundation (Grants CCF1665252, DMS-1737944 and CCF-1565235; Award CCF-1453261) 2020-08-31T23:39:41Z 2020-08-31T23:39:41Z 2019-04 2019-11-15T18:10:59Z Book http://purl.org/eprint/type/ConferencePaper 9783030170820 9783030170837 0302-9743 1611-3349 https://hdl.handle.net/1721.1/126860 Kim, Younhun et al. "How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories." International Conference on Research in Computational Molecular Biology, May 2019, Padua Italy, Springer International Publishing, April 2019. © 2019 Springer Nature en http://dx.doi.org/10.1007/978-3-030-17083-7_9 Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Springer International Publishing arXiv
spellingShingle Kim, Younhun
Koehler, Frederic
Moitra, Ankur
Mossel, Elchanan
Ramnarayan, Govind
How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories
title How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories
title_full How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories
title_fullStr How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories
title_full_unstemmed How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories
title_short How Many Subpopulations Is Too Many?: Exponential Lower Bounds for Inferring Population Histories
title_sort how many subpopulations is too many exponential lower bounds for inferring population histories
url https://hdl.handle.net/1721.1/126860
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