Copy number differences of Y chromosomal genes between superior and inferior quality semen producing crossbred (Bos taurus × Bos indicus) bulls
| Autor: | Jagan Mohanarao G, Dipak Banerjee, Tirtha Kumar Datta, Moloya Gohain, Ayan Mukherjee, Tapan Kumar Das, A K Chakrabarty, Vinay Kumar Katneni, Sachinandan De, Gulshan Dass |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Male
endocrine system Gene Dosage Bioengineering Semen Cell Cycle Proteins Biology Quantitative trait locus Y chromosome Crossbreed Semen collection DEAD-box RNA Helicases fluids and secretions Y Chromosome Animals Copy-number variation Genetics urogenital system USP9Y Herd Hybridization Genetic Animal Science and Zoology Cattle Ubiquitin Thiolesterase Biotechnology |
| Zdroj: | Animal biotechnology. 26(1) |
| ISSN: | 1532-2378 |
| Popis: | The removal of crossbred bulls from semen collection programs due to the production of poor quality semen causes substantial monetary losses to the dairy industry. Seminal quality, a quantitative trait, is greatly influenced by genome level variations. Deletion and/or duplication of Y chromosomal genes and subsequent changes in gene copy number have a major role in determining spermatogenic efficiency and, therefore, seminal quality. In this study, copy numbers of three Y chromosomal genes TSPY, DDX3Y, and USP9Y in genomic DNA were estimated and compared in two groups of crossbred (Bos taurus × Bos indicus) bulls of ten each, superior and inferior quality semen producing bulls, which were classified based on their seminal quality parameters. For TSPY gene, the inferior quality semen donor group has significantly lower copy number than superior quality semen donor group (p0.05). No significant difference was found in DDX3Y and USP9Y gene copy numbers between two groups (p0.05). In conclusion, this study demonstrates that the copy number of TSPY, a Y chromosomal spermatogenesis related gene, may be an important determinant to predict the quality of bull semen, facilitating better selection of bulls in a herd for semen collection program. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|