Genome-wide association study for feedlot average daily gain in Nellore cattle (Bos indicus )

2014 ◽  
Vol 131 (3) ◽  
pp. 210-216 ◽  
Author(s):  
M.H.A. Santana ◽  
Y.T. Utsunomiya ◽  
H.H.R. Neves ◽  
R.C. Gomes ◽  
J.F. Garcia ◽  
...  
Keyword(s):  
Association Study ◽  
Genome Wide Association Study ◽  
Average Daily Gain ◽  
Bos Indicus ◽  
Genome Wide Association ◽  
Genome Wide ◽  
Nellore Cattle ◽  
Daily Gain

Short communication: Genome wide association study for gastrointestinal nematodes resistance in Bos taurus x Bos indicus crossbred cattle

2021 ◽  
Vol 245 ◽  
pp. 104403
Author(s):  
Pamela I. Otto ◽  
Simone E.F. Guimarães ◽  
Lucas L. Verardo ◽  
Ana Luísa S. Azevedo ◽  
Claudia A. Sevillano ◽  
...  
Keyword(s):  
Association Study ◽  
Short Communication ◽  
Genome Wide Association Study ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Gastrointestinal Nematodes ◽  
Genome Wide Association ◽  
Crossbred Cattle ◽  
Genome Wide

Genome-wide association study identified genomic regions and putative candidate genes affecting meat color traits in Nellore cattle

Meat Science ◽  
2021 ◽  
Vol 171 ◽  
pp. 108288
Author(s):  
N.A. Marín-Garzón ◽  
A.F.B. Magalhães ◽  
L.F.M Mota ◽  
L.F.S. Fonseca ◽  
L.A.L. Chardulo ◽  
...  
Keyword(s):  
Association Study ◽  
Candidate Genes ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Meat Color ◽  
Genome Wide ◽  
Color Traits ◽  
Nellore Cattle ◽  
Genomic Regions

scholarly journals Genome-Wide Association Study of Meat Quality Traits in Nellore Cattle

PLoS ONE ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. e0157845 ◽  
Author(s):  
Ana F. B. Magalhães ◽  
Gregório M. F. de Camargo ◽  
Gerardo A. Fernandes ◽  
Daniel G. M. Gordo ◽  
Rafael L. Tonussi ◽  
...  
Keyword(s):  
Association Study ◽  
Meat Quality ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Quality Traits ◽  
Meat Quality Traits ◽  
Genome Wide ◽  
Nellore Cattle

PSXI-4 Genome-Wide association study for muscle visual score in Nellore cattle raised in pasture-based systems

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 246-246
Author(s):  
Victor B Pedrosa ◽  
Pamela Machado ◽  
Rafaela Martins ◽  
Marcio Silva ◽  
Luis Fernando Pinto ◽  
...  
Keyword(s):  
Association Study ◽  
Candidate Genes ◽  
Genome Wide Association Study ◽  
Additive Genetic Variance ◽  
Genome Wide Association ◽  
Zebu Cattle ◽  
Visual Score ◽  
Genome Wide ◽  
A Genome ◽  
Nellore Cattle

Abstract Visual scoring traits have been proposed as an alternative to evaluate body composition of Zebu cattle near the slaughter season when phenotyping technologies are not available. Considering the increased demand for high-quality animal protein in developing countries, there is a need to genetically improve body muscle (MUSC) in Zebu cattle (Bos taurus indicus), especially in animals raised in pasture-based systems. Therefore, our main objectives were to estimate genetic parameters, perform a genome-wide association study based on the single-step GBLUP approach (ssGWAS), and identify candidate genes and metabolic pathways related to MUSC in Nellore cattle. A total of 20,808 Nellore animals born between 2009 and 2018 were visually score at 18 months of age and 2,775 of these animals were also genotyped using the GGP-Indicus 35K SNP panel (33,247 SNPs after quality control). Heritability was estimated based on the REML approach and the model included the effects of age at measurement as covariable and the contemporary group (farm, birth season, management group and sex). The ssGWAS was performed using the BLUPF90 family programs. The identification of candidate genes was performed through the Ensembl database incorporated in the BioMart tool. MUSC is heritable (0.38) and can be improved through selection. Nineteen genomic regions (explaining 38.12% of the total additive genetic variance) located on BTA1, BTA7, BTA9, BTA16, and BTA21 and harboring 19 candidate genes were identified. The main genes identified were SEMA6A, TIAM2, UNC5A, and UIMC1, which are related to the metabolism of energy, growth, homeostasis and axonogenesis, and therefore, muscle development. These findings contribute to a better understanding of the molecular mechanisms over the gene expression of muscle visual score in Nellore cattle, and the polymorphisms located in these genes can be incorporated in commercial genotyping platforms to improve the accuracy of imputation and genomic evaluations for body and carcass traits.

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