Article (Scientific journals)
Estimation of breeding values using different densities of SNP to inform kinship in broiler chickens
Salvian, Mayara; Costa Monteiro Moreira, Gabriel; Silveira, Robson Mateus Freitas et al.
2023 • In Livestock Science, 267, p. 105124
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Keywords :
Broiler chicken; Genomic prediction; High density panel; Imputation; Whole-genomic sequence; Animal Science and Zoology; Veterinary (all); General Veterinary
Abstract :
[en] Traditionally, breeding values are estimated based on phenotypic and pedigree information using the numerator relationship (A) matrix. With the availability of genomic information, genome-wide markers can be included in the estimation of breeding values through genomic kinship. Genomic information allows a more accurate estimation of breeding values compared to the breeding values estimated by phenotypic and pedigree information. However, the density of genomic information used can impact the cost of implementation. The aim of this study was to compare the rank, accuracy, and bias of estimated breeding values (EBV) for organs [heart (HRT), liver (LIV), gizzard (GIZ), lungs (LUN)] and carcass [breast (BRST), drumstick (DRM) and thigh (THG)] weight traits in a broiler population using pedigree-based BLUP (PBLUP) and single-step genomic BLUP (ssGBLUP) methods using various densities of SNP and variants imputed from whole-genome sequence (WGS). For both PBLUP and ssGBLUP, heritability estimates varied from low (LUN) to high (HRT, LIV, GIZ, BRST, DRM and THG). Regression coefficient values of EBV on genomic estimated breeding values (GEBV) were similar for both the high density (HD) and WGS sets of SNPs, ranging from 0.87 to 0.99 across scenarios. Results show no benefit of using WGS data compared to HD array data using an unweighted ssGBLUP. Our results suggest that 10% of the content of the HD array can yield unbiased and accurate EBV.
Disciplines :
Genetics & genetic processes
Animal production & animal husbandry
Author, co-author :
Salvian, Mayara;  Department of Animal Science, University of São Paulo, Piracicaba, Brazil
Costa Monteiro Moreira, Gabriel  ;  Université de Liège - ULiège > GIGA > GIGA Medical Genomics - Unit of Animal Genomics
Silveira, Robson Mateus Freitas;  Department of Animal Science, University of São Paulo, Piracicaba, Brazil
Reis, Ândrea Plotzki;  Department of Animal Science, Federal University of Viçosa, Viçosa, Brazil
Dias D'auria, Brayan ;  Department of Animal Science, University of São Paulo, Piracicaba, Brazil
Pilonetto, Fabrício ;  Department of Animal Science, University of São Paulo, Piracicaba, Brazil
Gervásio, Izally Carvalho ;  Department of Animal Science, University of São Paulo, Piracicaba, Brazil
Ledur, Mônica Corrêa ;  Embrapa Swine and Poultry, Concórdia, Brazil
Coutinho, Luiz Lehmann ;  Department of Animal Science, University of São Paulo, Piracicaba, Brazil
Spangler, Matthew Lee ;  Department of Animal Science, University of Nebraska, Lincoln, United States
Mourão, Gerson Barreto ;  Department of Animal Science, University of São Paulo, Piracicaba, Brazil
Language :
English
Title :
Estimation of breeding values using different densities of SNP to inform kinship in broiler chickens
Publication date :
2023
Journal title :
Livestock Science
ISSN :
1871-1413
eISSN :
1878-0490
Publisher :
Elsevier
Volume :
267
Pages :
105124
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
The authors would like to thank Embrapa Swine & Poultry for providing the genotype, phenotype and pedigree data. We also thank the Animal Biotechnology Laboratory at University of São Paulo (ESALQ-USP) for sequencing and for genotyping the animals. The authors would like to acknowledge the collaborative efforts among Embrapa, University of São Paulo, CNPq and FAPESP for the support, and University of Nebraska – Lincoln; especially the Animal Science Department and the Holland Computer Center (HCC) for providing resources to perform the analysis. We also thank CNPq for the Research Productivity Grant granted to professors Gerson Barreto Mourão and Luiz Lehmann CoutinhoThe authors would like to thank Embrapa Swine & Poultry for providing the genotype, phenotype and pedigree data. We also thank the Animal Biotechnology Laboratory at University of São Paulo (ESALQ-USP) for sequencing and for genotyping the animals. The authors would like to acknowledge the collaborative efforts among Embrapa, University of São Paulo, CNPq and FAPESP for the support, and University of Nebraska – Lincoln; especially the Animal Science Department and the Holland Computer Center (HCC) for providing resources to perform the analysis. We also thank CNPq for the Research Productivity Grant granted to professors Gerson Barreto Mourão and Luiz Lehmann CoutinhoThis study was supported by the Brazilian Agricultural Research Corporation – Embrapa (project number 01.11.07.002.04.02) and by the thematic project (2014/08704–0) from São Paulo Research Foundation (FAPESP). The TT Reference Population was funded by the National Council of Scientific and Technological Development (CNPq) grant number 481755/2007–1 from the Brazilian Government. G.C.M. Moreira received fellowships from FAPESP, grants 14/21380–9 (in cooperation agreement with CAPES), and 16/00569–1. M. Salvian received a fellowship from CNPq, grants 206489/2017-0. L.L. Coutinho and M.C. Ledur are recipients of productivity fellowship from CNPq.
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