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Reconstructing pedigrees: A stochastic perspective

机译:重构血统书:一种随机的观点

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A pedigree is a directed graph that describes how individuals are related through ancestry in a sexually-reproducing population. In this paper we explore the question of whether one can reconstruct a pedigree by just observing sequence data for present day individuals. This is motivated by the increasing availability of genomic sequences, but in this paper we take a more theoretical approach and consider what models of sequence evolution might allow pedigree reconstruction (given sufficiently long sequences). Our results complement recent work that showed that pedigree reconstruction may be fundamentally impossible if one uses just the degrees of relatedness between different extant individuals. We find that for certain stochastic processes, pedigrees can be recovered up to isomorphism from sufficiently long sequences. (C) 2007 Elsevier Ltd. All rights reserved.
机译:血统书是有向图,它描述了有性繁殖人口中个体如何通过血统联系起来。在本文中,我们探讨了仅通过观察当今个体的序列数据是否可以重建谱系的问题。这是由于基因组序列可用性的提高所致,但是在本文中,我们采用了更为理论化的方法,并考虑了哪些序列进化模型可能允许谱系重建(给出足够长的序列)。我们的结果补充了最近的工作,这些工作表明,如果仅使用不同现存个体之间的相关程度,则谱系重建可能根本就不可能。我们发现对于某些随机过程,谱系可以从足够长的序列中恢复到同构。 (C)2007 Elsevier Ltd.保留所有权利。

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