Hodge, H J; De las Heras-Saldana, S; Rindfleish, S J; Stephen, C P; Pant, S D

Author(s)

Hodge, H J

De las Heras-Saldana, S

Rindfleish, S J

Stephen, C P

Pant, S D

Publication Date

2023-07-26

Abstract

<p>Ram semen traits influence conception outcomes, which in turn, may influence reproductive efficiency in sheep. As such, this study aimed to estimate genetic parameters and identify Quantitative Trait Loci (QTLs) associated with ram semen traits including volume (VOL), gross motility (GM), concentration (CONC), and percentage post thaw motility (PPTM) in a resource population consisting of five sheep breeds common to Australia. Over 11,000 semen collection records were used to estimate the heritability of semen traits (h<sup>2</sup> = 0.081–0.170). Genome-wide association (GWA) analysis was subsequently performed using a subset of genotyped animals with 5,363 semen collection records. A total of 34 QTLs located on 16 chromosomes were found to be significantly associated with semen traits. Several candidate genes that have previously been linked to male fertility were identified within these QTLs.</p>

Citation

Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.25, p. 282-285

ISSN

1328-3227

Link

https://hdl.handle.net/1959.11/55802

Publisher

Association for the Advancement of Animal Breeding and Genetics (AAABG)

Title

Genome wide association study and heritability estimates for ram semen traits

Type of document

Conference Publication

Entity Type

Publication

Author(s)	Hodge, H J De las Heras-Saldana, S Rindfleish, S J Stephen, C P Pant, S D
Publication Date	2023-07-26
Abstract	<p>Ram semen traits influence conception outcomes, which in turn, may influence reproductive efficiency in sheep. As such, this study aimed to estimate genetic parameters and identify Quantitative Trait Loci (QTLs) associated with ram semen traits including volume (VOL), gross motility (GM), concentration (CONC), and percentage post thaw motility (PPTM) in a resource population consisting of five sheep breeds common to Australia. Over 11,000 semen collection records were used to estimate the heritability of semen traits (h<sup>2</sup> = 0.081–0.170). Genome-wide association (GWA) analysis was subsequently performed using a subset of genotyped animals with 5,363 semen collection records. A total of 34 QTLs located on 16 chromosomes were found to be significantly associated with semen traits. Several candidate genes that have previously been linked to male fertility were identified within these QTLs.</p>
Citation	Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.25, p. 282-285
ISSN	1328-3227
Link	https://hdl.handle.net/1959.11/55802
Publisher	Association for the Advancement of Animal Breeding and Genetics (AAABG)
Title	Genome wide association study and heritability estimates for ram semen traits
Type of document	Conference Publication
Entity Type	Publication

Genome wide association study and heritability estimates for ram semen traits

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