Article (Scientific journals)
Single-step genome-wide association analyses for selected infrared-predicted cheese-making traits in Walloon Holstein cows.
Atashi, Hadi; Chen, Yansen; Wilmot, Hélène et al.
2023In Journal of Dairy Science
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Keywords :
Holstein; cheese-making; genomic association; milk composition; Genetics; Animal Science and Zoology; Food Science
Abstract :
[en] This study aimed to perform genome-wide association study to identify genomic regions associated with milk production and cheese-making properties (CMP) in Walloon Holstein cows. The studied traits were milk yield, fat percentage, protein percentage, casein percentage (CNP), calcium content, somatic cell score (SCS), coagulation time, curd firmness after 30 min from rennet addition, and titratable acidity. The used data have been collected from 2014 to 2020 on 78,073 first-parity (485,218 test-day records), 48,766 second-parity (284,942 test-day records), and 21,948 third-parity (105,112 test-day records) Holstein cows distributed in 671 herds in the Walloon Region of Belgium. Data of 565,533 single nucleotide polymorphisms (SNP), located on 29 Bos taurus autosomes (BTA) of 6,617 animals (1,712 males), were used. Random regression test-day models were used to estimate genetic parameters through the Bayesian Gibbs sampling method. The SNP solutions were estimated using a single-step genomic BLUP approach. The proportion of the total additive genetic variance explained by windows of 50 consecutive SNPs (with an average size of ∼216 KB) was calculated, and regions accounting for at least 1.0% of the total additive genetic variance were used to search for positional candidate genes. Heritability estimates for the studied traits ranged from 0.10 (SCS) to 0.53 (CNP), 0.10 (SCS) to 0.50 (CNP), and 0.12 (SCS) to 0.49 (CNP) in the first, second, and third parity, respectively. Genome-wide association analyses identified 6 genomic regions (BTA1, BTA14 [4 regions], and BTA20) associated with the considered traits. Genes including the SLC37A1 (BTA1), SHARPIN, MROH1, DGAT1, FAM83H, TIGD5, MROH6, NAPRT, ADGRB1, GML, LYPD2, JRK (BTA14), and TRIO (BTA20) were identified as positional candidate genes for the studied CMP. The findings of this study help to unravel the genomic background of a cow's ability for cheese production and can be used for the future implementation and use of genomic evaluation to improve the cheese-making traits in Walloon Holstein cows.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Atashi, Hadi  ;  Université de Liège - ULiège > Département GxABT > Animal Sciences (AS)
Chen, Yansen  ;  Université de Liège - ULiège > TERRA Research Centre
Wilmot, Hélène  ;  Université de Liège - ULiège > TERRA Research Centre
Bastin, C;  National Fund for Scientific Research (F.R.S.-FNRS), B-1000 Brussels, Belgium
Vanderick, Sylvie  ;  Université de Liège - ULiège > TERRA Research Centre > Animal Sciences (AS)
Hubin, X ;  Elevéo asbl Awé Group, 5590 Ciney, Belgium
Gengler, Nicolas  ;  Université de Liège - ULiège > TERRA Research Centre > Animal Sciences (AS)
Language :
English
Title :
Single-step genome-wide association analyses for selected infrared-predicted cheese-making traits in Walloon Holstein cows.
Publication date :
09 August 2023
Journal title :
Journal of Dairy Science
ISSN :
0022-0302
eISSN :
1525-3198
Publisher :
American Dairy Science Association, United States
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 August 2023

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