To clean or not to clean phenotypic datasets for outlier plants in genetic analyses?

© The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 70(2019), 15 vom: 07. Aug., Seite 3693-3698
1. Verfasser: Alvarez Prado, Santiago (VerfasserIn)
Weitere Verfasser: Sanchez, Isabelle, Cabrera-Bosquet, Llorenç, Grau, Antonin, Welcker, Claude, Tardieu, François, Hilgert, Nadine
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Allele frequency genetic analysis outliers phenomics quantitative trait loci statistical analysis Plant Proteins
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520 |a Based on case studies, we discuss the extent to which genome-wide association studies (GWAS) are affected by outlier plants, i.e. those deviating from the expected distribution on a multi-criteria basis. Using a raw dataset consisting of daily measurements of leaf area, biomass, and plant height for thousands of plants, we tested three different cleaning methods for their effects on genetic analyses. No-cleaning resulted in the highest number of dubious quantitative trait loci, especially at loci with highly unbalanced allelic frequencies. A trade-off was identified between the risk of false-positives (with no-cleaning and/or a low threshold for minor allele frequency) and the risk of missing interesting rare alleles. Cleaning can lower the risk of the latter by making it possible to choose a higher threshold in GWAS 
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650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Allele frequency 
650 4 |a genetic analysis 
650 4 |a outliers 
650 4 |a phenomics 
650 4 |a quantitative trait loci 
650 4 |a statistical analysis 
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700 1 |a Sanchez, Isabelle  |e verfasserin  |4 aut 
700 1 |a Cabrera-Bosquet, Llorenç  |e verfasserin  |4 aut 
700 1 |a Grau, Antonin  |e verfasserin  |4 aut 
700 1 |a Welcker, Claude  |e verfasserin  |4 aut 
700 1 |a Tardieu, François  |e verfasserin  |4 aut 
700 1 |a Hilgert, Nadine  |e verfasserin  |4 aut 
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