Evidence map›Paper›PMID 27542959›Full record

ArticleGenetics2016

Estimating the Effective Population Size from Temporal Allele Frequency Changes in Experimental Evolution.

Ágnes Jónás, Thomas Taus, Carolin Kosiol, Christian Schlötterer, Andreas Futschik

Abstract read
In one paragraph

Article in Genetics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Ágnes Jónás*Vienna Graduate School of Population Genetics, 1210 Vienna, Austria †Institut für Populationsgenetik, Vetmeduni Vienna, 1210 Vienna, Austria.
Thomas Taus*Vienna Graduate School of Population Genetics, 1210 Vienna, Austria †Institut für Populationsgenetik, Vetmeduni Vienna, 1210 Vienna, Austria.
Carolin Kosiol†Institut für Populationsgenetik, Vetmeduni Vienna, 1210 Vienna, Austria.
Christian Schlötterer†Institut für Populationsgenetik, Vetmeduni Vienna, 1210 Vienna, Austria.
Andreas Futschik†Institut für Populationsgenetik, Vetmeduni Vienna, 1210 Vienna, Austria ‡Department of Applied Statistics, Johannes Kepler Universität Linz, 4040 Linz, Austria andreas.futschik@jku.at.ORCID http://orcid.org/0000-0002-7980-0304

Funding

Austrian Science Fund FWF W 1225
6 · The paper itself

Abstract

The effective population size ([Formula: see text]) is a major factor determining allele frequency changes in natural and experimental populations. Temporal methods provide a powerful and simple approach to estimate short-term [Formula: see text] They use allele frequency shifts between temporal samples to calculate the standardized variance, which is directly related to [Formula: see text] Here we focus on experimental evolution studies that often rely on repeated sequencing of samples in pools (Pool-seq). Pool-seq is cost-effective and often outperforms individual-based sequencing in estimating allele frequencies, but it is associated with atypical sampling properties: Additional to sampling individuals, sequencing DNA in pools leads to a second round of sampling, which increases the variance of allele frequency estimates. We propose a new estimator of [Formula: see text] which relies on allele frequency changes in temporal data and corrects for the variance in both sampling steps. In simulations, we obtain accurate [Formula: see text] estimates, as long as the drift variance is not too small compared to the sampling and sequencing variance. In addition to genome-wide [Formula: see text] estimates, we extend our method using a recursive partitioning approach to estimate [Formula: see text] locally along the chromosome. Since the type I error is controlled, our method permits the identification of genomic regions that differ significantly in their [Formula: see text] estimates. We present an application to Pool-seq data from experimental evolution with Drosophila and provide recommendations for whole-genome data. The estimator is computationally efficient and available as an R package at https://github.com/ThomasTaus/Nest.

Indexed as

Directed Molecular EvolutionPopulation DensitySequence Analysis, DNAAllelesAnimalsDrosophilaGene FrequencyPolymorphism, Single Nucleotideeffective population sizeexperimental evolutiongenetic driftPool-seq

Identifiers

PMID27542959
PMCPMC5068858

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.