Genome-wide association study for semen quality traits in German Warmblood stallions. 2016

Maren Gottschalk, and Julia Metzger, and Gunilla Martinsson, and Harald Sieme, and Ottmar Distl
Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover (Foundation), Hannover, Germany.

We performed a genome-wide association study for semen quality traits in 139 German Warmblood stallions. Stallions were genotyped using the Illumina equine SNP50 Beadchip. Traits analysed were de-regressed estimated breeding values (EBVs) for gel-free volume, sperm concentration, total number of sperm, progressive motility and the total number of progressively motile sperm. The GWAS revealed 29 SNPs on 12 different chromosomes as genome-wide significantly associated with semen quality traits. For ten genomic regions we could retrieve candidate genes influencing stallion fertility. Among the candidate genes, we could find the genes encoding cysteine-rich secretory proteins (CRISP1, CRISP2 and CRISP3). This was the first GWAS in horses performed for semen quality traits.

UI MeSH Term Description Entries
D008297 Male Males
D006736 Horses Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest. Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012661 Semen The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma. Seminal Plasma,Plasma, Seminal
D055101 Semen Analysis The quality of SEMEN, an indicator of male fertility, can be determined by semen volume, pH, sperm concentration (SPERM COUNT), total sperm number, sperm viability, sperm vigor (SPERM MOTILITY), normal sperm morphology, ACROSOME integrity, and the concentration of WHITE BLOOD CELLS. Semen Quality,Semen Quality Analysis,Analyses, Semen Quality,Analysis, Semen Quality,Qualities, Semen,Quality Analyses, Semen,Quality, Semen,Semen Analyses,Semen Qualities,Semen Quality Analyses
D055106 Genome-Wide Association Study An analysis comparing the allele frequencies of all available (or a whole GENOME representative set of) polymorphic markers to identify gene candidates or quantitative trait loci associated with a specific organism trait or specific disease or condition. Genome Wide Association Analysis,Genome Wide Association Study,GWA Study,Genome Wide Association Scan,Genome Wide Association Studies,Whole Genome Association Analysis,Whole Genome Association Study,Association Studies, Genome-Wide,Association Study, Genome-Wide,GWA Studies,Genome-Wide Association Studies,Studies, GWA,Studies, Genome-Wide Association,Study, GWA,Study, Genome-Wide Association

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