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Front Plant Sci. 2020 Feb 25;10:1794. doi: 10.3389/fpls.2019.01794. eCollection 2019.

Comparing Different Statistical Models and Multiple Testing Corrections for Association Mapping in Soybean and Maize.

Frontiers in plant science

Avjinder S Kaler, Jason D Gillman, Timothy Beissinger, Larry C Purcell

Affiliations

  1. Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, United States.
  2. Plant Genetic Research Unit, USDA-ARS, Columbia, MO, United States.
  3. Division of Plant Breeding Methodology, Center for Integrated Breeding Research, Georg-August-Universität, Göttingen, Germany.

PMID: 32158452 PMCID: PMC7052329 DOI: 10.3389/fpls.2019.01794

Abstract

Association mapping (AM) is a powerful tool for fine mapping complex trait variation down to nucleotide sequences by exploiting historical recombination events. A major problem in AM is controlling false positives that can arise from population structure and family relatedness. False positives are often controlled by incorporating covariates for structure and kinship in mixed linear models (MLM). These MLM-based methods are single locus models and can introduce false negatives due to over fitting of the model. In this study, eight different statistical models, ranging from single-locus to multilocus, were compared for AM for three traits differing in heritability in two crop species: soybean (

Copyright © 2020 Kaler, Gillman, Beissinger and Purcell.

Keywords: association mapping; genome-wide association analyses; multiple testing correction; quantitative trait loci; statistical model analysis

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