Back to Search
Start Over
Genome-wide association study using haplotype alleles for the evaluation of reproductive traits in Nelore cattle
- Source :
- Scopus, Repositório Institucional da UNESP, Universidade Estadual Paulista (UNESP), instacron:UNESP, PLoS ONE, Vol 13, Iss 8, p e0201876 (2018), PLoS ONE
- Publication Year :
- 2018
- Publisher :
- Public Library of Science (PLoS), 2018.
-
Abstract
- Made available in DSpace on 2018-12-11T17:22:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-08-01 Zebu cattle (Bos taurus indicus) are highly adapted to tropical regions. However, females reach puberty after taurine heifers, which affects the economic efficiency of beef cattle breeding in the tropical regions. The aims of this study were to establish associations between the haplotype alleles of the bovine genome and age at first calving (AFC) in the Nelore cattle, and to identify the genes and quantitative trait loci (QTL) related to this phenotype. A total of 2,273 Nelore cattle (995 males and 1,278 females) genotyped using the Illumina BovineHD BeadChip were used in the current study. The association analysis included females with valid first calving records as well as open heifers. Linkage disequilibrium (LD) analysis among the markers was performed using blocks of 5, 10, and 15 markers, which were determined by sliding windows shifting one marker at a time. Then, the haplotype block size to be used in the association study was chosen based on the highest r2 average among the SNPs in the block. The five HapAlleles most strongly associated with the trait (top five) were considered as significant associations. The results of the analysis revealed four genomic regions related to AFC, which overlapped with 20 QTL of the reproductive traits reported previously. Furthermore, there were 19 genes related to reproduction in those regions. In conclusion, the use of haplotypes allowed the detection of chromosomal regions associated with AFC in Nelore cattle, and provided the basis for elucidating the mechanisms underlying this trait. Faculdade de Ciências Biológicas e Ambientais Universidade Federal da Grande Dourados UFGD Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias UNESP Departamento de Medicina Veterinária Preventiva e Reprodução Animal Faculdade de Ciências Agrárias e Veterinárias UNESP Departamento de Apoio Produção e Saúde Animal Faculdade de Medicina Veterinária de Araçatuba UNESP GenSys Consultores Associados S/S Ltda International Atomic Energy Agency (IAEA) Collaborating Centre on Animal Genomics and Bioinformatics Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias UNESP Departamento de Medicina Veterinária Preventiva e Reprodução Animal Faculdade de Ciências Agrárias e Veterinárias UNESP Departamento de Apoio Produção e Saúde Animal Faculdade de Medicina Veterinária de Araçatuba UNESP
- Subjects :
- Male
0301 basic medicine
Linkage disequilibrium
Heredity
Physiology
lcsh:Medicine
Breeding
Beef cattle
Linkage Disequilibrium
Endocrinology
Animal Cells
Animal Products
Medicine and Health Sciences
Animal Husbandry
lcsh:Science
Mammals
Genetics
Mammalian Genomics
Multidisciplinary
Reproduction
Eukaryota
Obstetrics and Gynecology
Agriculture
Ruminants
Genomics
04 agricultural and veterinary sciences
Zebu
Genetic Mapping
Bovine genome
Phenotype
OVA
Vertebrates
Female
Cellular Types
Beef
Stillbirths
Research Article
Meat
Quantitative Trait Loci
Single-nucleotide polymorphism
Quantitative trait locus
Biology
Polymorphism, Single Nucleotide
03 medical and health sciences
Bovines
Genome-Wide Association Studies
Animals
Alleles
Nutrition
Genetic association
Endocrine Physiology
Puberty
lcsh:R
Haplotype
Organisms
0402 animal and dairy science
Biology and Life Sciences
Computational Biology
Human Genetics
Cell Biology
Genome Analysis
040201 dairy & animal science
Diet
Germ Cells
030104 developmental biology
Haplotypes
Food
Animal Genomics
Amniotes
Oocytes
Women's Health
Cattle
lcsh:Q
Genome-Wide Association Study
Subjects
Details
- ISSN :
- 19326203
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- PLOS ONE
- Accession number :
- edsair.doi.dedup.....83b6b6bbf0bbfd11e93fa5e7c22e0778