Genome-wide association analysis for temperament in Australian sheep

Title
Genome-wide association analysis for temperament in Australian sheep
Publication Date
2021
Author(s)
de las Heras-Saldana, S
( author )
OrcID: https://orcid.org/0000-0002-8665-6160
Email: sdelash2@une.edu.au
UNE Id une-id:sdelash2
Moghaddar, N
( author )
OrcID: https://orcid.org/0000-0002-3600-7752
Email: nmoghad4@une.edu.au
UNE Id une-id:nmoghad4
Clark, S A
( author )
OrcID: https://orcid.org/0000-0001-8605-1738
Email: sclark37@une.edu.au
UNE Id une-id:sclark37
van der Werf, J H J
( author )
OrcID: https://orcid.org/0000-0003-2512-1696
Email: jvanderw@une.edu.au
UNE Id une-id:jvanderw
Abstract
Paper presented by S de las Heras-Saldana
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
Association for the Advancement of Animal Breeding and Genetics (AAABG)
Place of publication
Armidale, Australia
UNE publication id
une:1959.11/37061
Abstract

In livestock, temperament traits such as flight speed and agitation are important indicators of management, survival, and welfare. Multiple studies have reported a low to moderate heritability for these traits. Identifying the genomic regions associated with temperament could help to find candidate genes and processes involved in defining these traits and this could be helpful in genomic prediction of phenotype or breeding value. This study aimed to identify genomic regions associated with flight speed and agitation. We used imputed whole-genome sequences from animals with records for flight speed (n = 8,737) and agitation (n = 8,586). The heritability for agitation was 0.18 ± 0.03 and 0.14 ± 0.02 for flight speed respectively. Three and five QTL regions were associated with agitation (on Chr3, Chr4, and Chr20) and flight speed (on Chr 1, Chr13, Chr15, and Chr26), respectively. The identification of these genomic regions provides further knowledge on the genetic mechanism involved in temperament traits providing alternative tools to improve sheep breeding programs. Further analysis is needed to find links between agitation and flight speed with production traits.

Link
Citation
Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.24, p. 86-89
ISSN
1328-3227
Start page
86
End page
89

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