Evidence map›Paper›PMID 25519518›Full record

ArticleBMC proceedings2014

Genome wide association analysis of the 16th QTL- MAS Workshop dataset using the Random Forest machine learning approach.

Giulietta Minozzi, Andrea Pedretti, Stefano Biffani, Ezequiel Luis Nicolazzi, Alessandra Stella

Open access · goldAbstract read
In one paragraph

Article in BMC proceedings, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.9field-weighted citation impact, top 22% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

3 citing papers in PubMed, 7 citations in OpenAlex.

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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 at 2 institutions in 1 country.

Giulietta MinozziParco Tecnologico Padano Srl, Via Einstein 26900 Lodi, Italy ; Department of Veterinary Science and Public Health, University of Milan, Via Celoria 10, 20133 Milan, Italy.
Andrea PedrettiParco Tecnologico Padano Srl, Via Einstein 26900 Lodi, Italy.
Stefano BiffaniIBBA-CNR, Via Einstein 26900, 26900 Lodi, Italy.
Ezequiel Luis NicolazziParco Tecnologico Padano Srl, Via Einstein 26900 Lodi, Italy.
Alessandra StellaIBBA-CNR, Via Einstein 26900, 26900 Lodi, Italy.
Parco Tecnologico Padano · ITUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGenome wide association studies are now widely used in the livestock sector to estimate the association among single nucleotide polymorphisms (SNPs) distributed across the whole genome and one or more trait. As computational power increases, the use of machine learning techniques to analyze large genome wide datasets becomes possible.

methodsThe objective of this study was to identify SNPs associated with the three traits simulated in the 16th MAS-QTL workshop dataset using the Random Forest (RF) approach. The approach was applied to single and multiple trait estimated breeding values, and on yield deviations and to compare them with the results of the GRAMMAR-CG method.

resultsThe two QTL mapping methods used, GRAMMAR-CG and RF, were successful in identifying the main QTLs for trait 1 on chromosomes 1 and 4, for trait 2 on chromosomes 1, 4 and 5 and for trait 3 on chromosomes 1, 2 and 3.

conclusionsThe results of the RF approach were confirmed by the GRAMMAR-CG method and validated by the effective QTL position, even if their approach to unravel cryptic genetic structure is different. Furthermore, both methods showed complementary findings. However, when the variance explained by the QTL is low, they both failed to detect significant associations.

Identifiers

PMID25519518
PMCPMC4195406
OpenAlexW2055372646

What Socratic holds

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LicenceCC BY
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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 Socratic graph.