Estimating breeding values for animals with genotype only when genetic group effects are important

A A Swan; P M Gurman; V Boerner; D J Brown; S Clark; K Gore; T Granleese; J H J van der Werf

Estimating breeding values for animals with genotype only when genetic group effects are important

A A Swan
, P M Gurman
, V Boerner
, D J Brown
, S Clark
, K Gore
, T Granleese
, J H J van der Werf

Research output: Contribution to journal › Conference article › peer-review

Abstract

A method was developed to estimate breeding values for animals with genotype only by back-solving post analysis from the single step genomic BLUP model. A key feature of the method is a regression on genomic relationships to approximate genetic group contributions for animals without pedigree. In a test application it was found that flock genetic means for a range of key traits in Australian Merino sheep could be estimated with high accuracy from SNP genotypes from a sample of 20 animals (correlations usually exceeding 0.8). The genetic group approximation substantially improved accuracy for several traits, and helped to reduce bias in predicting flock genetic means across all traits.

Original language	English
Article number	346
Pages (from-to)	1-6
Journal	Proceedings of the World Congress on Genetics Applied to Livestock Production
Volume	11
Publication status	Published - 2018
Event	WCGALP 2018: 11th World Congress on Genetics Applied to Livestock Production - Aotea Convention Centre, Auckland, New Zealand Duration: 7 Feb 2018 → 16 Feb 2018

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Swan, A. A., Gurman, P. M., Boerner, V., Brown, D. J., Clark, S., Gore, K., Granleese, T., & van der Werf, J. H. J. (2018). Estimating breeding values for animals with genotype only when genetic group effects are important. Proceedings of the World Congress on Genetics Applied to Livestock Production, 11, 1-6. Article 346. http://www.wcgalp.org/proceedings/2018/estimating-breeding-values-animals-genotype-only-when-genetic-group-effects-are

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title = "Estimating breeding values for animals with genotype only when genetic group effects are important",

abstract = "A method was developed to estimate breeding values for animals with genotype only by back-solving post analysis from the single step genomic BLUP model. A key feature of the method is a regression on genomic relationships to approximate genetic group contributions for animals without pedigree. In a test application it was found that flock genetic means for a range of key traits in Australian Merino sheep could be estimated with high accuracy from SNP genotypes from a sample of 20 animals (correlations usually exceeding 0.8). The genetic group approximation substantially improved accuracy for several traits, and helped to reduce bias in predicting flock genetic means across all traits.",

author = "Swan, \{A A\} and Gurman, \{P M\} and V Boerner and Brown, \{D J\} and S Clark and K Gore and T Granleese and \{van der Werf\}, \{J H J\}",

year = "2018",

language = "English",

volume = "11",

pages = "1--6",

journal = "Proceedings of the World Congress on Genetics Applied to Livestock Production",

publisher = "Massey University",

note = "WCGALP 2018: 11th World Congress on Genetics Applied to Livestock Production ; Conference date: 07-02-2018 Through 16-02-2018",

}

Swan, AA, Gurman, PM, Boerner, V, Brown, DJ, Clark, S, Gore, K, Granleese, T & van der Werf, JHJ 2018, 'Estimating breeding values for animals with genotype only when genetic group effects are important', Proceedings of the World Congress on Genetics Applied to Livestock Production, vol. 11, 346, pp. 1-6. <http://www.wcgalp.org/proceedings/2018/estimating-breeding-values-animals-genotype-only-when-genetic-group-effects-are>

TY - JOUR

T1 - Estimating breeding values for animals with genotype only when genetic group effects are important

AU - Swan, A A

AU - Gurman, P M

AU - Boerner, V

AU - Brown, D J

AU - Clark, S

AU - Gore, K

AU - Granleese, T

AU - van der Werf, J H J

PY - 2018

Y1 - 2018

N2 - A method was developed to estimate breeding values for animals with genotype only by back-solving post analysis from the single step genomic BLUP model. A key feature of the method is a regression on genomic relationships to approximate genetic group contributions for animals without pedigree. In a test application it was found that flock genetic means for a range of key traits in Australian Merino sheep could be estimated with high accuracy from SNP genotypes from a sample of 20 animals (correlations usually exceeding 0.8). The genetic group approximation substantially improved accuracy for several traits, and helped to reduce bias in predicting flock genetic means across all traits.

AB - A method was developed to estimate breeding values for animals with genotype only by back-solving post analysis from the single step genomic BLUP model. A key feature of the method is a regression on genomic relationships to approximate genetic group contributions for animals without pedigree. In a test application it was found that flock genetic means for a range of key traits in Australian Merino sheep could be estimated with high accuracy from SNP genotypes from a sample of 20 animals (correlations usually exceeding 0.8). The genetic group approximation substantially improved accuracy for several traits, and helped to reduce bias in predicting flock genetic means across all traits.

UR - http://www.wcgalp.org/proceedings/2018

M3 - Conference article

VL - 11

SP - 1

EP - 6

JO - Proceedings of the World Congress on Genetics Applied to Livestock Production

JF - Proceedings of the World Congress on Genetics Applied to Livestock Production

M1 - 346

T2 - WCGALP 2018: 11th World Congress on Genetics Applied to Livestock Production

Y2 - 7 February 2018 through 16 February 2018

ER -

Estimating breeding values for animals with genotype only when genetic group effects are important

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