Efficiently Inferring the Demographic History of Many Population with Allel Count Data pdf epub mobi txt 电子书下载 2024

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John A.Kamm

bioRxiv

2018-3-23

Hardcover

9787518707751

图书标签: 分子生物学

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发表于2024-11-22

Efficiently Inferring the Demographic History of Many Population with Allel Count Data epub 下载 mobi 下载 pdf 下载 txt 电子书下载 2024

Efficiently Inferring the Demographic History of Many Population with Allel Count Data pdf epub mobi txt 电子书下载 2024

图书描述

The sample frequency spectrum (SFS), or histogram of allele counts, is an important summary statistic in evolutionary biology, and is often used to infer the history of population size changes, migrations, and other demographic events affecting a set of populations. The expected multipopulation SFS under a given demographic model can be efficiently computed when the populations in the model are related by a tree, scaling to hundreds of populations. Admixture, back-migration, and introgression are common natural processes that violate the assumption of a tree-like population history, however, and until now the expected SFS could be computed for only a handful of populations when the demographic history is not a tree. In this article, we present a new method for efficiently computing the expected SFS and linear functionals of it, for demographies described by general directed acyclic graphs. This method can scale to more populations than previously possible for complex demographic histories including admixture. We apply our method to an 8-population SFS to estimate the timing and strength of a proposed "basal Eurasian" admixture event in human history. We implement and release our method in a new open-source software package momi2.

Efficiently Inferring the Demographic History of Many Population with Allel Count Data 下载 mobi epub pdf txt 电子书