期刊
ANIMAL GENETICS
卷 48, 期 1, 页码 80-84出版社
WILEY-BLACKWELL
DOI: 10.1111/age.12433
关键词
China Holstein bulls; GWAS; single nucleotide polymorphism; sperm quality traits
资金
- China Agricultural Research System [CARS-37]
- National Key Technologies RD Program [2011BAD28B02, 2012BAD12B01, 2013AA1-02504]
- Beijing Dairy Industry Innovation Team
- Program for Changjiang Scholars and Innovation Research Team in University [IRT1191]
A genome-wide association study (GWAS) was performed to identify markers and candidate genes for five semen traits in the Holstein bull population in China. The analyzed dataset consisted of records from 692 bulls from eight bull stations; each bull was genotyped using the Illumina BovineSNP50 BeadChip. Association tests between each trait and the 41 188 informative high-quality SNPs were achieved with GAPIT software. In total, 19 suggestive significant SNPs, partly located within the reported QTL regions or within or close to the reported candidate genes, associated with five semen traits were detected. By combining our GWAS results with the biological functions of these genes, eight novel promising candidate genes, including ETNK1, PDE3A, PDGFRB, CSF1R, WT1, DSCAML1, SOD1 and RUNX2, were identified that potentially relate to semen traits. Our findings may provide a basis for further research on the genetic mechanism of semen traits and marker-assisted selection of such traits in Holstein bulls.
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