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DOI: 10.4230/LIPIcs.WABI.2022.6
Constructing Founder Sets Under Allelic and Non-Allelic Homologous Recombination

Authors: Konstantinn Bonnet, Tobias Marschall, and Daniel Doerr¹

Published in: LIPIcs, Volume 242, 22nd International Workshop on Algorithms in Bioinformatics (WABI 2022)

Abstract
Homologous recombination between the maternal and paternal copies of a chromosome is a key mechanism for human inheritance and shapes population genetic properties of our species. However, a similar mechanism can also act between different copies of the same sequence, then called non-allelic homologous recombination (NAHR). This process can result in genomic rearrangements - including deletion, duplication, and inversion - and is underlying many genomic disorders. Despite its importance for genome evolution and disease, there is a lack of computational models to study genomic loci prone to NAHR. In this work, we propose such a computational model, providing a unified framework for both (allelic) homologous recombination and NAHR. Our model represents a set of genomes as a graph, where human haplotypes correspond to walks through this graph. We formulate two founder set problems under our recombination model, provide flow-based algorithms for their solution, and demonstrate scalability to problem instances arising in practice.
Cite as

Konstantinn Bonnet, Tobias Marschall, and Daniel Doerr¹. Constructing Founder Sets Under Allelic and Non-Allelic Homologous Recombination. In 22nd International Workshop on Algorithms in Bioinformatics (WABI 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 242, pp. 6:1-6:23, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{bonnet_et_al:LIPIcs.WABI.2022.6,
  author =	{Bonnet, Konstantinn and Marschall, Tobias and Doerr¹, Daniel},
  title =	{{Constructing Founder Sets Under Allelic and Non-Allelic Homologous Recombination}},
  booktitle =	{22nd International Workshop on Algorithms in Bioinformatics (WABI 2022)},
  pages =	{6:1--6:23},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-243-3},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{242},
  editor =	{Boucher, Christina and Rahmann, Sven},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.WABI.2022.6},
  URN =		{urn:nbn:de:0030-drops-170403},
  doi =		{10.4230/LIPIcs.WABI.2022.6},
  annote =	{Keywords: founder set reconstruction, variation graph, pangenomics, NAHR, homologous recombination}
}
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