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Cited by 95Genetic and phenotypic traits in livestockGenetic Mapping and Diversity in Plants and AnimalsGenetics and Plant Breeding

The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.

Genetic evaluation including intermediate omics features

Open access
Christensen, Ole F, Börner, Vinzent, Varona, Luis, Legarra, Andres·2021·Genetics

Abstract

In animal and plant breeding and genetics, there has been an increasing interest in intermediate omics traits, such as metabolomics and transcriptomics, which mediate the effect of genetics on the phenotype of interest. For inclusion of such intermediate traits into a genetic evaluation system, there is a need for a statistical model that integrates phenotypes, genotypes, pedigree, and omics traits, and a need for associated computational methods that provide estimated breeding values. In this paper, a joint model for phenotypes and omics data is presented, and a formula for the breeding values on individuals is derived. For complete omics data, three equivalent methods for best linear unbiased prediction of breeding values are presented. In all three cases, this requires solving two mixed model equation systems. Estimation of parameters using restricted maximum likelihood is also presented. For incomplete omics data, extensions of two of these methods are presented, where in both cases, the extension consists of extending an omics-related similarity matrix to incorporate individuals without omics data. The methods are illustrated using a simulated data set.

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Metadata

Authors
Christensen, O. F., Börner, V., Varona, L., & Legarra, A.
Affiliations
  • Aarhus University (DK)
  • Universidad de Zaragoza (ES)
  • GenPhySE (Génétique, Physiologie et Systèmes d’Elevage), INRA, 31326 Castanet-Tolosan, France
Corresponding author
Christensen, Ole F
Venue
Genetics
Published
2021-08-07
Volume
219
Issue
2
Pages
14 p;
ISSN
  • 0016-6731 (ISSN-L)
  • 1943-2631
OpenAlex
W3198274722
Cited by
81
References
29
Citations by year
2026: 6 · 2025: 15 · 2024: 23 · 2023: 15 · 2022: 20 · 2021: 2
FWCI
10.45
Type
journal article
Language
en
Open access
Locations
  • Genetics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • Green Development and Demonstration Programme
  • Ministry of Food, Agriculture and Fisheries of Denmark (34009-19-1586)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetics and Plant Breeding
Keywords
genetic evaluation, metabolomics, transcriptomics, breeding value estimation, BLUP, mixed model equations, restricted maximum likelihood, animal breeding, plant breeding
MeSH terms
Plant Breeding, Animals, Breeding, Models, Genetic, Plants, Genomics, Genetic Fitness

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