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Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/55802
Title: Genome wide association study and heritability estimates for ram semen traits
Contributor(s): Hodge, H J (author); De las Heras-Saldana, S  (author)orcid ; Rindfleish, S J (author); Stephen, C P (author); Pant, S D (author)
Publication Date: 2023-07-26
Open Access: Yes
Handle Link: https://hdl.handle.net/1959.11/55802
Open Access Link: http://www.aaabg.org/aaabghome/AAABG25papers/69Hodge25282.pdfOpen Access Link
Abstract: 

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 (h2 = 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.

Publication Type: Conference Publication
Conference Details: AAABG 2023: 25th Conference of the Association for the Advancement of Animal Breeding and Genetics, Perth, Australia, 26th - 28th July, 2023
Source of Publication: Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.25, p. 282-285
Publisher: Association for the Advancement of Animal Breeding and Genetics (AAABG)
Place of Publication: Armidale, Australia
ISSN: 1328-3227
Fields of Research (FoR) 2020: 300305 Animal reproduction and breeding
Socio-Economic Objective (SEO) 2020: 100412 Sheep for meat
100413 Sheep for wool
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Publisher/associated links: http://www.aaabg.org/aaabghome/proceedings25.php
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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